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/** |
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* @license |
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* Lodash <https://lodash.com/> |
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* Copyright OpenJS Foundation and other contributors <https://openjsf.org/> |
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* Released under MIT license <https://lodash.com/license> |
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* Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE> |
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* Copyright Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors |
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*/ |
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;(function() { |
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|
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/** Used as a safe reference for `undefined` in pre-ES5 environments. */ |
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var undefined; |
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|
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/** Used as the semantic version number. */ |
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var VERSION = '4.17.19'; |
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|
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/** Used as the size to enable large array optimizations. */ |
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var LARGE_ARRAY_SIZE = 200; |
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|
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/** Error message constants. */ |
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var CORE_ERROR_TEXT = 'Unsupported core-js use. Try https://npms.io/search?q=ponyfill.', |
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FUNC_ERROR_TEXT = 'Expected a function'; |
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|
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/** Used to stand-in for `undefined` hash values. */ |
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var HASH_UNDEFINED = '__lodash_hash_undefined__'; |
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|
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/** Used as the maximum memoize cache size. */ |
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var MAX_MEMOIZE_SIZE = 500; |
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|
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/** Used as the internal argument placeholder. */ |
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var PLACEHOLDER = '__lodash_placeholder__'; |
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|
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/** Used to compose bitmasks for cloning. */ |
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var CLONE_DEEP_FLAG = 1, |
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CLONE_FLAT_FLAG = 2, |
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CLONE_SYMBOLS_FLAG = 4; |
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|
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/** Used to compose bitmasks for value comparisons. */ |
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var COMPARE_PARTIAL_FLAG = 1, |
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COMPARE_UNORDERED_FLAG = 2; |
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|
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/** Used to compose bitmasks for function metadata. */ |
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var WRAP_BIND_FLAG = 1, |
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WRAP_BIND_KEY_FLAG = 2, |
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WRAP_CURRY_BOUND_FLAG = 4, |
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WRAP_CURRY_FLAG = 8, |
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WRAP_CURRY_RIGHT_FLAG = 16, |
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WRAP_PARTIAL_FLAG = 32, |
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WRAP_PARTIAL_RIGHT_FLAG = 64, |
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WRAP_ARY_FLAG = 128, |
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WRAP_REARG_FLAG = 256, |
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WRAP_FLIP_FLAG = 512; |
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|
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/** Used as default options for `_.truncate`. */ |
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var DEFAULT_TRUNC_LENGTH = 30, |
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DEFAULT_TRUNC_OMISSION = '...'; |
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|
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/** Used to detect hot functions by number of calls within a span of milliseconds. */ |
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var HOT_COUNT = 800, |
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HOT_SPAN = 16; |
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|
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/** Used to indicate the type of lazy iteratees. */ |
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var LAZY_FILTER_FLAG = 1, |
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LAZY_MAP_FLAG = 2, |
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LAZY_WHILE_FLAG = 3; |
| 66 |
|
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/** Used as references for various `Number` constants. */ |
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var INFINITY = 1 / 0, |
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MAX_SAFE_INTEGER = 9007199254740991, |
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MAX_INTEGER = 1.7976931348623157e+308, |
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NAN = 0 / 0; |
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|
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/** Used as references for the maximum length and index of an array. */ |
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var MAX_ARRAY_LENGTH = 4294967295, |
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MAX_ARRAY_INDEX = MAX_ARRAY_LENGTH - 1, |
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HALF_MAX_ARRAY_LENGTH = MAX_ARRAY_LENGTH >>> 1; |
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|
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/** Used to associate wrap methods with their bit flags. */ |
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var wrapFlags = [ |
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['ary', WRAP_ARY_FLAG], |
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['bind', WRAP_BIND_FLAG], |
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['bindKey', WRAP_BIND_KEY_FLAG], |
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['curry', WRAP_CURRY_FLAG], |
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['curryRight', WRAP_CURRY_RIGHT_FLAG], |
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['flip', WRAP_FLIP_FLAG], |
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['partial', WRAP_PARTIAL_FLAG], |
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['partialRight', WRAP_PARTIAL_RIGHT_FLAG], |
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['rearg', WRAP_REARG_FLAG] |
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]; |
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|
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/** `Object#toString` result references. */ |
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var argsTag = '[object Arguments]', |
| 93 |
arrayTag = '[object Array]', |
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asyncTag = '[object AsyncFunction]', |
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boolTag = '[object Boolean]', |
| 96 |
dateTag = '[object Date]', |
| 97 |
domExcTag = '[object DOMException]', |
| 98 |
errorTag = '[object Error]', |
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funcTag = '[object Function]', |
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genTag = '[object GeneratorFunction]', |
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mapTag = '[object Map]', |
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numberTag = '[object Number]', |
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nullTag = '[object Null]', |
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objectTag = '[object Object]', |
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promiseTag = '[object Promise]', |
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proxyTag = '[object Proxy]', |
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regexpTag = '[object RegExp]', |
| 108 |
setTag = '[object Set]', |
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stringTag = '[object String]', |
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symbolTag = '[object Symbol]', |
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undefinedTag = '[object Undefined]', |
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weakMapTag = '[object WeakMap]', |
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weakSetTag = '[object WeakSet]'; |
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|
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var arrayBufferTag = '[object ArrayBuffer]', |
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dataViewTag = '[object DataView]', |
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float32Tag = '[object Float32Array]', |
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float64Tag = '[object Float64Array]', |
| 119 |
int8Tag = '[object Int8Array]', |
| 120 |
int16Tag = '[object Int16Array]', |
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int32Tag = '[object Int32Array]', |
| 122 |
uint8Tag = '[object Uint8Array]', |
| 123 |
uint8ClampedTag = '[object Uint8ClampedArray]', |
| 124 |
uint16Tag = '[object Uint16Array]', |
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uint32Tag = '[object Uint32Array]'; |
| 126 |
|
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/** Used to match empty string literals in compiled template source. */ |
| 128 |
var reEmptyStringLeading = /\b__p \+= '';/g, |
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reEmptyStringMiddle = /\b(__p \+=) '' \+/g, |
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reEmptyStringTrailing = /(__e\(.*?\)|\b__t\)) \+\n'';/g; |
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|
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/** Used to match HTML entities and HTML characters. */ |
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var reEscapedHtml = /&(?:amp|lt|gt|quot|#39);/g, |
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reUnescapedHtml = /[&<>"']/g, |
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reHasEscapedHtml = RegExp(reEscapedHtml.source), |
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reHasUnescapedHtml = RegExp(reUnescapedHtml.source); |
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|
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/** Used to match template delimiters. */ |
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var reEscape = /<%-([\s\S]+?)%>/g, |
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reEvaluate = /<%([\s\S]+?)%>/g, |
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reInterpolate = /<%=([\s\S]+?)%>/g; |
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|
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/** Used to match property names within property paths. */ |
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var reIsDeepProp = /\.|\[(?:[^[\]]*|(["'])(?:(?!\1)[^\\]|\\.)*?\1)\]/, |
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reIsPlainProp = /^\w*$/, |
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rePropName = /[^.[\]]+|\[(?:(-?\d+(?:\.\d+)?)|(["'])((?:(?!\2)[^\\]|\\.)*?)\2)\]|(?=(?:\.|\[\])(?:\.|\[\]|$))/g; |
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|
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/** |
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* Used to match `RegExp` |
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* [syntax characters](http://ecma-international.org/ecma-262/7.0/#sec-patterns). |
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*/ |
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var reRegExpChar = /[\\^$.*+?()[\]{}|]/g, |
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reHasRegExpChar = RegExp(reRegExpChar.source); |
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|
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/** Used to match leading and trailing whitespace. */ |
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var reTrim = /^\s+|\s+$/g, |
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reTrimStart = /^\s+/, |
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reTrimEnd = /\s+$/; |
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|
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/** Used to match wrap detail comments. */ |
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var reWrapComment = /\{(?:\n\/\* \[wrapped with .+\] \*\/)?\n?/, |
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reWrapDetails = /\{\n\/\* \[wrapped with (.+)\] \*/, |
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reSplitDetails = /,? & /; |
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|
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/** Used to match words composed of alphanumeric characters. */ |
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var reAsciiWord = /[^\x00-\x2f\x3a-\x40\x5b-\x60\x7b-\x7f]+/g; |
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|
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/** Used to match backslashes in property paths. */ |
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var reEscapeChar = /\\(\\)?/g; |
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|
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/** |
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* Used to match |
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* [ES template delimiters](http://ecma-international.org/ecma-262/7.0/#sec-template-literal-lexical-components). |
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*/ |
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var reEsTemplate = /\$\{([^\\}]*(?:\\.[^\\}]*)*)\}/g; |
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|
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/** Used to match `RegExp` flags from their coerced string values. */ |
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var reFlags = /\w*$/; |
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|
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/** Used to detect bad signed hexadecimal string values. */ |
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var reIsBadHex = /^[-+]0x[0-9a-f]+$/i; |
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|
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/** Used to detect binary string values. */ |
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var reIsBinary = /^0b[01]+$/i; |
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|
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/** Used to detect host constructors (Safari). */ |
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var reIsHostCtor = /^\[object .+?Constructor\]$/; |
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|
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/** Used to detect octal string values. */ |
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var reIsOctal = /^0o[0-7]+$/i; |
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|
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/** Used to detect unsigned integer values. */ |
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var reIsUint = /^(?:0|[1-9]\d*)$/; |
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|
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/** Used to match Latin Unicode letters (excluding mathematical operators). */ |
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var reLatin = /[\xc0-\xd6\xd8-\xf6\xf8-\xff\u0100-\u017f]/g; |
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|
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/** Used to ensure capturing order of template delimiters. */ |
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var reNoMatch = /($^)/; |
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|
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/** Used to match unescaped characters in compiled string literals. */ |
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var reUnescapedString = /['\n\r\u2028\u2029\\]/g; |
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|
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/** Used to compose unicode character classes. */ |
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var rsAstralRange = '\\ud800-\\udfff', |
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rsComboMarksRange = '\\u0300-\\u036f', |
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reComboHalfMarksRange = '\\ufe20-\\ufe2f', |
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rsComboSymbolsRange = '\\u20d0-\\u20ff', |
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rsComboRange = rsComboMarksRange + reComboHalfMarksRange + rsComboSymbolsRange, |
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rsDingbatRange = '\\u2700-\\u27bf', |
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rsLowerRange = 'a-z\\xdf-\\xf6\\xf8-\\xff', |
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rsMathOpRange = '\\xac\\xb1\\xd7\\xf7', |
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rsNonCharRange = '\\x00-\\x2f\\x3a-\\x40\\x5b-\\x60\\x7b-\\xbf', |
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rsPunctuationRange = '\\u2000-\\u206f', |
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rsSpaceRange = ' \\t\\x0b\\f\\xa0\\ufeff\\n\\r\\u2028\\u2029\\u1680\\u180e\\u2000\\u2001\\u2002\\u2003\\u2004\\u2005\\u2006\\u2007\\u2008\\u2009\\u200a\\u202f\\u205f\\u3000', |
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rsUpperRange = 'A-Z\\xc0-\\xd6\\xd8-\\xde', |
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rsVarRange = '\\ufe0e\\ufe0f', |
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rsBreakRange = rsMathOpRange + rsNonCharRange + rsPunctuationRange + rsSpaceRange; |
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|
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/** Used to compose unicode capture groups. */ |
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var rsApos = "['\u2019]", |
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rsAstral = '[' + rsAstralRange + ']', |
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rsBreak = '[' + rsBreakRange + ']', |
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rsCombo = '[' + rsComboRange + ']', |
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rsDigits = '\\d+', |
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rsDingbat = '[' + rsDingbatRange + ']', |
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rsLower = '[' + rsLowerRange + ']', |
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rsMisc = '[^' + rsAstralRange + rsBreakRange + rsDigits + rsDingbatRange + rsLowerRange + rsUpperRange + ']', |
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rsFitz = '\\ud83c[\\udffb-\\udfff]', |
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rsModifier = '(?:' + rsCombo + '|' + rsFitz + ')', |
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rsNonAstral = '[^' + rsAstralRange + ']', |
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rsRegional = '(?:\\ud83c[\\udde6-\\uddff]){2}', |
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rsSurrPair = '[\\ud800-\\udbff][\\udc00-\\udfff]', |
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rsUpper = '[' + rsUpperRange + ']', |
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rsZWJ = '\\u200d'; |
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|
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/** Used to compose unicode regexes. */ |
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var rsMiscLower = '(?:' + rsLower + '|' + rsMisc + ')', |
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rsMiscUpper = '(?:' + rsUpper + '|' + rsMisc + ')', |
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rsOptContrLower = '(?:' + rsApos + '(?:d|ll|m|re|s|t|ve))?', |
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rsOptContrUpper = '(?:' + rsApos + '(?:D|LL|M|RE|S|T|VE))?', |
| 242 |
reOptMod = rsModifier + '?', |
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rsOptVar = '[' + rsVarRange + ']?', |
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rsOptJoin = '(?:' + rsZWJ + '(?:' + [rsNonAstral, rsRegional, rsSurrPair].join('|') + ')' + rsOptVar + reOptMod + ')*', |
| 245 |
rsOrdLower = '\\d*(?:1st|2nd|3rd|(?![123])\\dth)(?=\\b|[A-Z_])', |
| 246 |
rsOrdUpper = '\\d*(?:1ST|2ND|3RD|(?![123])\\dTH)(?=\\b|[a-z_])', |
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rsSeq = rsOptVar + reOptMod + rsOptJoin, |
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rsEmoji = '(?:' + [rsDingbat, rsRegional, rsSurrPair].join('|') + ')' + rsSeq, |
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rsSymbol = '(?:' + [rsNonAstral + rsCombo + '?', rsCombo, rsRegional, rsSurrPair, rsAstral].join('|') + ')'; |
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|
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/** Used to match apostrophes. */ |
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var reApos = RegExp(rsApos, 'g'); |
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|
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/** |
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* Used to match [combining diacritical marks](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks) and |
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* [combining diacritical marks for symbols](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks_for_Symbols). |
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*/ |
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var reComboMark = RegExp(rsCombo, 'g'); |
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|
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/** Used to match [string symbols](https://mathiasbynens.be/notes/javascript-unicode). */ |
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var reUnicode = RegExp(rsFitz + '(?=' + rsFitz + ')|' + rsSymbol + rsSeq, 'g'); |
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|
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/** Used to match complex or compound words. */ |
| 264 |
var reUnicodeWord = RegExp([ |
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rsUpper + '?' + rsLower + '+' + rsOptContrLower + '(?=' + [rsBreak, rsUpper, '$'].join('|') + ')', |
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rsMiscUpper + '+' + rsOptContrUpper + '(?=' + [rsBreak, rsUpper + rsMiscLower, '$'].join('|') + ')', |
| 267 |
rsUpper + '?' + rsMiscLower + '+' + rsOptContrLower, |
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rsUpper + '+' + rsOptContrUpper, |
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rsOrdUpper, |
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rsOrdLower, |
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rsDigits, |
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rsEmoji |
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].join('|'), 'g'); |
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|
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/** Used to detect strings with [zero-width joiners or code points from the astral planes](http://eev.ee/blog/2015/09/12/dark-corners-of-unicode/). */ |
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var reHasUnicode = RegExp('[' + rsZWJ + rsAstralRange + rsComboRange + rsVarRange + ']'); |
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|
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/** Used to detect strings that need a more robust regexp to match words. */ |
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var reHasUnicodeWord = /[a-z][A-Z]|[A-Z]{2}[a-z]|[0-9][a-zA-Z]|[a-zA-Z][0-9]|[^a-zA-Z0-9 ]/; |
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|
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/** Used to assign default `context` object properties. */ |
| 282 |
var contextProps = [ |
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'Array', 'Buffer', 'DataView', 'Date', 'Error', 'Float32Array', 'Float64Array', |
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'Function', 'Int8Array', 'Int16Array', 'Int32Array', 'Map', 'Math', 'Object', |
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'Promise', 'RegExp', 'Set', 'String', 'Symbol', 'TypeError', 'Uint8Array', |
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'Uint8ClampedArray', 'Uint16Array', 'Uint32Array', 'WeakMap', |
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'_', 'clearTimeout', 'isFinite', 'parseInt', 'setTimeout' |
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]; |
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|
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/** Used to make template sourceURLs easier to identify. */ |
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var templateCounter = -1; |
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|
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/** Used to identify `toStringTag` values of typed arrays. */ |
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var typedArrayTags = {}; |
| 295 |
typedArrayTags[float32Tag] = typedArrayTags[float64Tag] = |
| 296 |
typedArrayTags[int8Tag] = typedArrayTags[int16Tag] = |
| 297 |
typedArrayTags[int32Tag] = typedArrayTags[uint8Tag] = |
| 298 |
typedArrayTags[uint8ClampedTag] = typedArrayTags[uint16Tag] = |
| 299 |
typedArrayTags[uint32Tag] = true; |
| 300 |
typedArrayTags[argsTag] = typedArrayTags[arrayTag] = |
| 301 |
typedArrayTags[arrayBufferTag] = typedArrayTags[boolTag] = |
| 302 |
typedArrayTags[dataViewTag] = typedArrayTags[dateTag] = |
| 303 |
typedArrayTags[errorTag] = typedArrayTags[funcTag] = |
| 304 |
typedArrayTags[mapTag] = typedArrayTags[numberTag] = |
| 305 |
typedArrayTags[objectTag] = typedArrayTags[regexpTag] = |
| 306 |
typedArrayTags[setTag] = typedArrayTags[stringTag] = |
| 307 |
typedArrayTags[weakMapTag] = false; |
| 308 |
|
| 309 |
/** Used to identify `toStringTag` values supported by `_.clone`. */ |
| 310 |
var cloneableTags = {}; |
| 311 |
cloneableTags[argsTag] = cloneableTags[arrayTag] = |
| 312 |
cloneableTags[arrayBufferTag] = cloneableTags[dataViewTag] = |
| 313 |
cloneableTags[boolTag] = cloneableTags[dateTag] = |
| 314 |
cloneableTags[float32Tag] = cloneableTags[float64Tag] = |
| 315 |
cloneableTags[int8Tag] = cloneableTags[int16Tag] = |
| 316 |
cloneableTags[int32Tag] = cloneableTags[mapTag] = |
| 317 |
cloneableTags[numberTag] = cloneableTags[objectTag] = |
| 318 |
cloneableTags[regexpTag] = cloneableTags[setTag] = |
| 319 |
cloneableTags[stringTag] = cloneableTags[symbolTag] = |
| 320 |
cloneableTags[uint8Tag] = cloneableTags[uint8ClampedTag] = |
| 321 |
cloneableTags[uint16Tag] = cloneableTags[uint32Tag] = true; |
| 322 |
cloneableTags[errorTag] = cloneableTags[funcTag] = |
| 323 |
cloneableTags[weakMapTag] = false; |
| 324 |
|
| 325 |
/** Used to map Latin Unicode letters to basic Latin letters. */ |
| 326 |
var deburredLetters = { |
| 327 |
// Latin-1 Supplement block. |
| 328 |
'\xc0': 'A', '\xc1': 'A', '\xc2': 'A', '\xc3': 'A', '\xc4': 'A', '\xc5': 'A', |
| 329 |
'\xe0': 'a', '\xe1': 'a', '\xe2': 'a', '\xe3': 'a', '\xe4': 'a', '\xe5': 'a', |
| 330 |
'\xc7': 'C', '\xe7': 'c', |
| 331 |
'\xd0': 'D', '\xf0': 'd', |
| 332 |
'\xc8': 'E', '\xc9': 'E', '\xca': 'E', '\xcb': 'E', |
| 333 |
'\xe8': 'e', '\xe9': 'e', '\xea': 'e', '\xeb': 'e', |
| 334 |
'\xcc': 'I', '\xcd': 'I', '\xce': 'I', '\xcf': 'I', |
| 335 |
'\xec': 'i', '\xed': 'i', '\xee': 'i', '\xef': 'i', |
| 336 |
'\xd1': 'N', '\xf1': 'n', |
| 337 |
'\xd2': 'O', '\xd3': 'O', '\xd4': 'O', '\xd5': 'O', '\xd6': 'O', '\xd8': 'O', |
| 338 |
'\xf2': 'o', '\xf3': 'o', '\xf4': 'o', '\xf5': 'o', '\xf6': 'o', '\xf8': 'o', |
| 339 |
'\xd9': 'U', '\xda': 'U', '\xdb': 'U', '\xdc': 'U', |
| 340 |
'\xf9': 'u', '\xfa': 'u', '\xfb': 'u', '\xfc': 'u', |
| 341 |
'\xdd': 'Y', '\xfd': 'y', '\xff': 'y', |
| 342 |
'\xc6': 'Ae', '\xe6': 'ae', |
| 343 |
'\xde': 'Th', '\xfe': 'th', |
| 344 |
'\xdf': 'ss', |
| 345 |
// Latin Extended-A block. |
| 346 |
'\u0100': 'A', '\u0102': 'A', '\u0104': 'A', |
| 347 |
'\u0101': 'a', '\u0103': 'a', '\u0105': 'a', |
| 348 |
'\u0106': 'C', '\u0108': 'C', '\u010a': 'C', '\u010c': 'C', |
| 349 |
'\u0107': 'c', '\u0109': 'c', '\u010b': 'c', '\u010d': 'c', |
| 350 |
'\u010e': 'D', '\u0110': 'D', '\u010f': 'd', '\u0111': 'd', |
| 351 |
'\u0112': 'E', '\u0114': 'E', '\u0116': 'E', '\u0118': 'E', '\u011a': 'E', |
| 352 |
'\u0113': 'e', '\u0115': 'e', '\u0117': 'e', '\u0119': 'e', '\u011b': 'e', |
| 353 |
'\u011c': 'G', '\u011e': 'G', '\u0120': 'G', '\u0122': 'G', |
| 354 |
'\u011d': 'g', '\u011f': 'g', '\u0121': 'g', '\u0123': 'g', |
| 355 |
'\u0124': 'H', '\u0126': 'H', '\u0125': 'h', '\u0127': 'h', |
| 356 |
'\u0128': 'I', '\u012a': 'I', '\u012c': 'I', '\u012e': 'I', '\u0130': 'I', |
| 357 |
'\u0129': 'i', '\u012b': 'i', '\u012d': 'i', '\u012f': 'i', '\u0131': 'i', |
| 358 |
'\u0134': 'J', '\u0135': 'j', |
| 359 |
'\u0136': 'K', '\u0137': 'k', '\u0138': 'k', |
| 360 |
'\u0139': 'L', '\u013b': 'L', '\u013d': 'L', '\u013f': 'L', '\u0141': 'L', |
| 361 |
'\u013a': 'l', '\u013c': 'l', '\u013e': 'l', '\u0140': 'l', '\u0142': 'l', |
| 362 |
'\u0143': 'N', '\u0145': 'N', '\u0147': 'N', '\u014a': 'N', |
| 363 |
'\u0144': 'n', '\u0146': 'n', '\u0148': 'n', '\u014b': 'n', |
| 364 |
'\u014c': 'O', '\u014e': 'O', '\u0150': 'O', |
| 365 |
'\u014d': 'o', '\u014f': 'o', '\u0151': 'o', |
| 366 |
'\u0154': 'R', '\u0156': 'R', '\u0158': 'R', |
| 367 |
'\u0155': 'r', '\u0157': 'r', '\u0159': 'r', |
| 368 |
'\u015a': 'S', '\u015c': 'S', '\u015e': 'S', '\u0160': 'S', |
| 369 |
'\u015b': 's', '\u015d': 's', '\u015f': 's', '\u0161': 's', |
| 370 |
'\u0162': 'T', '\u0164': 'T', '\u0166': 'T', |
| 371 |
'\u0163': 't', '\u0165': 't', '\u0167': 't', |
| 372 |
'\u0168': 'U', '\u016a': 'U', '\u016c': 'U', '\u016e': 'U', '\u0170': 'U', '\u0172': 'U', |
| 373 |
'\u0169': 'u', '\u016b': 'u', '\u016d': 'u', '\u016f': 'u', '\u0171': 'u', '\u0173': 'u', |
| 374 |
'\u0174': 'W', '\u0175': 'w', |
| 375 |
'\u0176': 'Y', '\u0177': 'y', '\u0178': 'Y', |
| 376 |
'\u0179': 'Z', '\u017b': 'Z', '\u017d': 'Z', |
| 377 |
'\u017a': 'z', '\u017c': 'z', '\u017e': 'z', |
| 378 |
'\u0132': 'IJ', '\u0133': 'ij', |
| 379 |
'\u0152': 'Oe', '\u0153': 'oe', |
| 380 |
'\u0149': "'n", '\u017f': 's' |
| 381 |
}; |
| 382 |
|
| 383 |
/** Used to map characters to HTML entities. */ |
| 384 |
var htmlEscapes = { |
| 385 |
'&': '&', |
| 386 |
'<': '<', |
| 387 |
'>': '>', |
| 388 |
'"': '"', |
| 389 |
"'": ''' |
| 390 |
}; |
| 391 |
|
| 392 |
/** Used to map HTML entities to characters. */ |
| 393 |
var htmlUnescapes = { |
| 394 |
'&': '&', |
| 395 |
'<': '<', |
| 396 |
'>': '>', |
| 397 |
'"': '"', |
| 398 |
''': "'" |
| 399 |
}; |
| 400 |
|
| 401 |
/** Used to escape characters for inclusion in compiled string literals. */ |
| 402 |
var stringEscapes = { |
| 403 |
'\\': '\\', |
| 404 |
"'": "'", |
| 405 |
'\n': 'n', |
| 406 |
'\r': 'r', |
| 407 |
'\u2028': 'u2028', |
| 408 |
'\u2029': 'u2029' |
| 409 |
}; |
| 410 |
|
| 411 |
/** Built-in method references without a dependency on `root`. */ |
| 412 |
var freeParseFloat = parseFloat, |
| 413 |
freeParseInt = parseInt; |
| 414 |
|
| 415 |
/** Detect free variable `global` from Node.js. */ |
| 416 |
var freeGlobal = typeof global == 'object' && global && global.Object === Object && global; |
| 417 |
|
| 418 |
/** Detect free variable `self`. */ |
| 419 |
var freeSelf = typeof self == 'object' && self && self.Object === Object && self; |
| 420 |
|
| 421 |
/** Used as a reference to the global object. */ |
| 422 |
var root = freeGlobal || freeSelf || Function('return this')(); |
| 423 |
|
| 424 |
/** Detect free variable `exports`. */ |
| 425 |
var freeExports = typeof exports == 'object' && exports && !exports.nodeType && exports; |
| 426 |
|
| 427 |
/** Detect free variable `module`. */ |
| 428 |
var freeModule = freeExports && typeof module == 'object' && module && !module.nodeType && module; |
| 429 |
|
| 430 |
/** Detect the popular CommonJS extension `module.exports`. */ |
| 431 |
var moduleExports = freeModule && freeModule.exports === freeExports; |
| 432 |
|
| 433 |
/** Detect free variable `process` from Node.js. */ |
| 434 |
var freeProcess = moduleExports && freeGlobal.process; |
| 435 |
|
| 436 |
/** Used to access faster Node.js helpers. */ |
| 437 |
var nodeUtil = (function() { |
| 438 |
try { |
| 439 |
// Use `util.types` for Node.js 10+. |
| 440 |
var types = freeModule && freeModule.require && freeModule.require('util').types; |
| 441 |
|
| 442 |
if (types) { |
| 443 |
return types; |
| 444 |
} |
| 445 |
|
| 446 |
// Legacy `process.binding('util')` for Node.js < 10. |
| 447 |
return freeProcess && freeProcess.binding && freeProcess.binding('util'); |
| 448 |
} catch (e) {} |
| 449 |
}()); |
| 450 |
|
| 451 |
/* Node.js helper references. */ |
| 452 |
var nodeIsArrayBuffer = nodeUtil && nodeUtil.isArrayBuffer, |
| 453 |
nodeIsDate = nodeUtil && nodeUtil.isDate, |
| 454 |
nodeIsMap = nodeUtil && nodeUtil.isMap, |
| 455 |
nodeIsRegExp = nodeUtil && nodeUtil.isRegExp, |
| 456 |
nodeIsSet = nodeUtil && nodeUtil.isSet, |
| 457 |
nodeIsTypedArray = nodeUtil && nodeUtil.isTypedArray; |
| 458 |
|
| 459 |
/*--------------------------------------------------------------------------*/ |
| 460 |
|
| 461 |
/** |
| 462 |
* A faster alternative to `Function#apply`, this function invokes `func` |
| 463 |
* with the `this` binding of `thisArg` and the arguments of `args`. |
| 464 |
* |
| 465 |
* @private |
| 466 |
* @param {Function} func The function to invoke. |
| 467 |
* @param {*} thisArg The `this` binding of `func`. |
| 468 |
* @param {Array} args The arguments to invoke `func` with. |
| 469 |
* @returns {*} Returns the result of `func`. |
| 470 |
*/ |
| 471 |
function apply(func, thisArg, args) { |
| 472 |
switch (args.length) { |
| 473 |
case 0: return func.call(thisArg); |
| 474 |
case 1: return func.call(thisArg, args[0]); |
| 475 |
case 2: return func.call(thisArg, args[0], args[1]); |
| 476 |
case 3: return func.call(thisArg, args[0], args[1], args[2]); |
| 477 |
} |
| 478 |
return func.apply(thisArg, args); |
| 479 |
} |
| 480 |
|
| 481 |
/** |
| 482 |
* A specialized version of `baseAggregator` for arrays. |
| 483 |
* |
| 484 |
* @private |
| 485 |
* @param {Array} [array] The array to iterate over. |
| 486 |
* @param {Function} setter The function to set `accumulator` values. |
| 487 |
* @param {Function} iteratee The iteratee to transform keys. |
| 488 |
* @param {Object} accumulator The initial aggregated object. |
| 489 |
* @returns {Function} Returns `accumulator`. |
| 490 |
*/ |
| 491 |
function arrayAggregator(array, setter, iteratee, accumulator) { |
| 492 |
var index = -1, |
| 493 |
length = array == null ? 0 : array.length; |
| 494 |
|
| 495 |
while (++index < length) { |
| 496 |
var value = array[index]; |
| 497 |
setter(accumulator, value, iteratee(value), array); |
| 498 |
} |
| 499 |
return accumulator; |
| 500 |
} |
| 501 |
|
| 502 |
/** |
| 503 |
* A specialized version of `_.forEach` for arrays without support for |
| 504 |
* iteratee shorthands. |
| 505 |
* |
| 506 |
* @private |
| 507 |
* @param {Array} [array] The array to iterate over. |
| 508 |
* @param {Function} iteratee The function invoked per iteration. |
| 509 |
* @returns {Array} Returns `array`. |
| 510 |
*/ |
| 511 |
function arrayEach(array, iteratee) { |
| 512 |
var index = -1, |
| 513 |
length = array == null ? 0 : array.length; |
| 514 |
|
| 515 |
while (++index < length) { |
| 516 |
if (iteratee(array[index], index, array) === false) { |
| 517 |
break; |
| 518 |
} |
| 519 |
} |
| 520 |
return array; |
| 521 |
} |
| 522 |
|
| 523 |
/** |
| 524 |
* A specialized version of `_.forEachRight` for arrays without support for |
| 525 |
* iteratee shorthands. |
| 526 |
* |
| 527 |
* @private |
| 528 |
* @param {Array} [array] The array to iterate over. |
| 529 |
* @param {Function} iteratee The function invoked per iteration. |
| 530 |
* @returns {Array} Returns `array`. |
| 531 |
*/ |
| 532 |
function arrayEachRight(array, iteratee) { |
| 533 |
var length = array == null ? 0 : array.length; |
| 534 |
|
| 535 |
while (length--) { |
| 536 |
if (iteratee(array[length], length, array) === false) { |
| 537 |
break; |
| 538 |
} |
| 539 |
} |
| 540 |
return array; |
| 541 |
} |
| 542 |
|
| 543 |
/** |
| 544 |
* A specialized version of `_.every` for arrays without support for |
| 545 |
* iteratee shorthands. |
| 546 |
* |
| 547 |
* @private |
| 548 |
* @param {Array} [array] The array to iterate over. |
| 549 |
* @param {Function} predicate The function invoked per iteration. |
| 550 |
* @returns {boolean} Returns `true` if all elements pass the predicate check, |
| 551 |
* else `false`. |
| 552 |
*/ |
| 553 |
function arrayEvery(array, predicate) { |
| 554 |
var index = -1, |
| 555 |
length = array == null ? 0 : array.length; |
| 556 |
|
| 557 |
while (++index < length) { |
| 558 |
if (!predicate(array[index], index, array)) { |
| 559 |
return false; |
| 560 |
} |
| 561 |
} |
| 562 |
return true; |
| 563 |
} |
| 564 |
|
| 565 |
/** |
| 566 |
* A specialized version of `_.filter` for arrays without support for |
| 567 |
* iteratee shorthands. |
| 568 |
* |
| 569 |
* @private |
| 570 |
* @param {Array} [array] The array to iterate over. |
| 571 |
* @param {Function} predicate The function invoked per iteration. |
| 572 |
* @returns {Array} Returns the new filtered array. |
| 573 |
*/ |
| 574 |
function arrayFilter(array, predicate) { |
| 575 |
var index = -1, |
| 576 |
length = array == null ? 0 : array.length, |
| 577 |
resIndex = 0, |
| 578 |
result = []; |
| 579 |
|
| 580 |
while (++index < length) { |
| 581 |
var value = array[index]; |
| 582 |
if (predicate(value, index, array)) { |
| 583 |
result[resIndex++] = value; |
| 584 |
} |
| 585 |
} |
| 586 |
return result; |
| 587 |
} |
| 588 |
|
| 589 |
/** |
| 590 |
* A specialized version of `_.includes` for arrays without support for |
| 591 |
* specifying an index to search from. |
| 592 |
* |
| 593 |
* @private |
| 594 |
* @param {Array} [array] The array to inspect. |
| 595 |
* @param {*} target The value to search for. |
| 596 |
* @returns {boolean} Returns `true` if `target` is found, else `false`. |
| 597 |
*/ |
| 598 |
function arrayIncludes(array, value) { |
| 599 |
var length = array == null ? 0 : array.length; |
| 600 |
return !!length && baseIndexOf(array, value, 0) > -1; |
| 601 |
} |
| 602 |
|
| 603 |
/** |
| 604 |
* This function is like `arrayIncludes` except that it accepts a comparator. |
| 605 |
* |
| 606 |
* @private |
| 607 |
* @param {Array} [array] The array to inspect. |
| 608 |
* @param {*} target The value to search for. |
| 609 |
* @param {Function} comparator The comparator invoked per element. |
| 610 |
* @returns {boolean} Returns `true` if `target` is found, else `false`. |
| 611 |
*/ |
| 612 |
function arrayIncludesWith(array, value, comparator) { |
| 613 |
var index = -1, |
| 614 |
length = array == null ? 0 : array.length; |
| 615 |
|
| 616 |
while (++index < length) { |
| 617 |
if (comparator(value, array[index])) { |
| 618 |
return true; |
| 619 |
} |
| 620 |
} |
| 621 |
return false; |
| 622 |
} |
| 623 |
|
| 624 |
/** |
| 625 |
* A specialized version of `_.map` for arrays without support for iteratee |
| 626 |
* shorthands. |
| 627 |
* |
| 628 |
* @private |
| 629 |
* @param {Array} [array] The array to iterate over. |
| 630 |
* @param {Function} iteratee The function invoked per iteration. |
| 631 |
* @returns {Array} Returns the new mapped array. |
| 632 |
*/ |
| 633 |
function arrayMap(array, iteratee) { |
| 634 |
var index = -1, |
| 635 |
length = array == null ? 0 : array.length, |
| 636 |
result = Array(length); |
| 637 |
|
| 638 |
while (++index < length) { |
| 639 |
result[index] = iteratee(array[index], index, array); |
| 640 |
} |
| 641 |
return result; |
| 642 |
} |
| 643 |
|
| 644 |
/** |
| 645 |
* Appends the elements of `values` to `array`. |
| 646 |
* |
| 647 |
* @private |
| 648 |
* @param {Array} array The array to modify. |
| 649 |
* @param {Array} values The values to append. |
| 650 |
* @returns {Array} Returns `array`. |
| 651 |
*/ |
| 652 |
function arrayPush(array, values) { |
| 653 |
var index = -1, |
| 654 |
length = values.length, |
| 655 |
offset = array.length; |
| 656 |
|
| 657 |
while (++index < length) { |
| 658 |
array[offset + index] = values[index]; |
| 659 |
} |
| 660 |
return array; |
| 661 |
} |
| 662 |
|
| 663 |
/** |
| 664 |
* A specialized version of `_.reduce` for arrays without support for |
| 665 |
* iteratee shorthands. |
| 666 |
* |
| 667 |
* @private |
| 668 |
* @param {Array} [array] The array to iterate over. |
| 669 |
* @param {Function} iteratee The function invoked per iteration. |
| 670 |
* @param {*} [accumulator] The initial value. |
| 671 |
* @param {boolean} [initAccum] Specify using the first element of `array` as |
| 672 |
* the initial value. |
| 673 |
* @returns {*} Returns the accumulated value. |
| 674 |
*/ |
| 675 |
function arrayReduce(array, iteratee, accumulator, initAccum) { |
| 676 |
var index = -1, |
| 677 |
length = array == null ? 0 : array.length; |
| 678 |
|
| 679 |
if (initAccum && length) { |
| 680 |
accumulator = array[++index]; |
| 681 |
} |
| 682 |
while (++index < length) { |
| 683 |
accumulator = iteratee(accumulator, array[index], index, array); |
| 684 |
} |
| 685 |
return accumulator; |
| 686 |
} |
| 687 |
|
| 688 |
/** |
| 689 |
* A specialized version of `_.reduceRight` for arrays without support for |
| 690 |
* iteratee shorthands. |
| 691 |
* |
| 692 |
* @private |
| 693 |
* @param {Array} [array] The array to iterate over. |
| 694 |
* @param {Function} iteratee The function invoked per iteration. |
| 695 |
* @param {*} [accumulator] The initial value. |
| 696 |
* @param {boolean} [initAccum] Specify using the last element of `array` as |
| 697 |
* the initial value. |
| 698 |
* @returns {*} Returns the accumulated value. |
| 699 |
*/ |
| 700 |
function arrayReduceRight(array, iteratee, accumulator, initAccum) { |
| 701 |
var length = array == null ? 0 : array.length; |
| 702 |
if (initAccum && length) { |
| 703 |
accumulator = array[--length]; |
| 704 |
} |
| 705 |
while (length--) { |
| 706 |
accumulator = iteratee(accumulator, array[length], length, array); |
| 707 |
} |
| 708 |
return accumulator; |
| 709 |
} |
| 710 |
|
| 711 |
/** |
| 712 |
* A specialized version of `_.some` for arrays without support for iteratee |
| 713 |
* shorthands. |
| 714 |
* |
| 715 |
* @private |
| 716 |
* @param {Array} [array] The array to iterate over. |
| 717 |
* @param {Function} predicate The function invoked per iteration. |
| 718 |
* @returns {boolean} Returns `true` if any element passes the predicate check, |
| 719 |
* else `false`. |
| 720 |
*/ |
| 721 |
function arraySome(array, predicate) { |
| 722 |
var index = -1, |
| 723 |
length = array == null ? 0 : array.length; |
| 724 |
|
| 725 |
while (++index < length) { |
| 726 |
if (predicate(array[index], index, array)) { |
| 727 |
return true; |
| 728 |
} |
| 729 |
} |
| 730 |
return false; |
| 731 |
} |
| 732 |
|
| 733 |
/** |
| 734 |
* Gets the size of an ASCII `string`. |
| 735 |
* |
| 736 |
* @private |
| 737 |
* @param {string} string The string inspect. |
| 738 |
* @returns {number} Returns the string size. |
| 739 |
*/ |
| 740 |
var asciiSize = baseProperty('length'); |
| 741 |
|
| 742 |
/** |
| 743 |
* Converts an ASCII `string` to an array. |
| 744 |
* |
| 745 |
* @private |
| 746 |
* @param {string} string The string to convert. |
| 747 |
* @returns {Array} Returns the converted array. |
| 748 |
*/ |
| 749 |
function asciiToArray(string) { |
| 750 |
return string.split(''); |
| 751 |
} |
| 752 |
|
| 753 |
/** |
| 754 |
* Splits an ASCII `string` into an array of its words. |
| 755 |
* |
| 756 |
* @private |
| 757 |
* @param {string} The string to inspect. |
| 758 |
* @returns {Array} Returns the words of `string`. |
| 759 |
*/ |
| 760 |
function asciiWords(string) { |
| 761 |
return string.match(reAsciiWord) || []; |
| 762 |
} |
| 763 |
|
| 764 |
/** |
| 765 |
* The base implementation of methods like `_.findKey` and `_.findLastKey`, |
| 766 |
* without support for iteratee shorthands, which iterates over `collection` |
| 767 |
* using `eachFunc`. |
| 768 |
* |
| 769 |
* @private |
| 770 |
* @param {Array|Object} collection The collection to inspect. |
| 771 |
* @param {Function} predicate The function invoked per iteration. |
| 772 |
* @param {Function} eachFunc The function to iterate over `collection`. |
| 773 |
* @returns {*} Returns the found element or its key, else `undefined`. |
| 774 |
*/ |
| 775 |
function baseFindKey(collection, predicate, eachFunc) { |
| 776 |
var result; |
| 777 |
eachFunc(collection, function(value, key, collection) { |
| 778 |
if (predicate(value, key, collection)) { |
| 779 |
result = key; |
| 780 |
return false; |
| 781 |
} |
| 782 |
}); |
| 783 |
return result; |
| 784 |
} |
| 785 |
|
| 786 |
/** |
| 787 |
* The base implementation of `_.findIndex` and `_.findLastIndex` without |
| 788 |
* support for iteratee shorthands. |
| 789 |
* |
| 790 |
* @private |
| 791 |
* @param {Array} array The array to inspect. |
| 792 |
* @param {Function} predicate The function invoked per iteration. |
| 793 |
* @param {number} fromIndex The index to search from. |
| 794 |
* @param {boolean} [fromRight] Specify iterating from right to left. |
| 795 |
* @returns {number} Returns the index of the matched value, else `-1`. |
| 796 |
*/ |
| 797 |
function baseFindIndex(array, predicate, fromIndex, fromRight) { |
| 798 |
var length = array.length, |
| 799 |
index = fromIndex + (fromRight ? 1 : -1); |
| 800 |
|
| 801 |
while ((fromRight ? index-- : ++index < length)) { |
| 802 |
if (predicate(array[index], index, array)) { |
| 803 |
return index; |
| 804 |
} |
| 805 |
} |
| 806 |
return -1; |
| 807 |
} |
| 808 |
|
| 809 |
/** |
| 810 |
* The base implementation of `_.indexOf` without `fromIndex` bounds checks. |
| 811 |
* |
| 812 |
* @private |
| 813 |
* @param {Array} array The array to inspect. |
| 814 |
* @param {*} value The value to search for. |
| 815 |
* @param {number} fromIndex The index to search from. |
| 816 |
* @returns {number} Returns the index of the matched value, else `-1`. |
| 817 |
*/ |
| 818 |
function baseIndexOf(array, value, fromIndex) { |
| 819 |
return value === value |
| 820 |
? strictIndexOf(array, value, fromIndex) |
| 821 |
: baseFindIndex(array, baseIsNaN, fromIndex); |
| 822 |
} |
| 823 |
|
| 824 |
/** |
| 825 |
* This function is like `baseIndexOf` except that it accepts a comparator. |
| 826 |
* |
| 827 |
* @private |
| 828 |
* @param {Array} array The array to inspect. |
| 829 |
* @param {*} value The value to search for. |
| 830 |
* @param {number} fromIndex The index to search from. |
| 831 |
* @param {Function} comparator The comparator invoked per element. |
| 832 |
* @returns {number} Returns the index of the matched value, else `-1`. |
| 833 |
*/ |
| 834 |
function baseIndexOfWith(array, value, fromIndex, comparator) { |
| 835 |
var index = fromIndex - 1, |
| 836 |
length = array.length; |
| 837 |
|
| 838 |
while (++index < length) { |
| 839 |
if (comparator(array[index], value)) { |
| 840 |
return index; |
| 841 |
} |
| 842 |
} |
| 843 |
return -1; |
| 844 |
} |
| 845 |
|
| 846 |
/** |
| 847 |
* The base implementation of `_.isNaN` without support for number objects. |
| 848 |
* |
| 849 |
* @private |
| 850 |
* @param {*} value The value to check. |
| 851 |
* @returns {boolean} Returns `true` if `value` is `NaN`, else `false`. |
| 852 |
*/ |
| 853 |
function baseIsNaN(value) { |
| 854 |
return value !== value; |
| 855 |
} |
| 856 |
|
| 857 |
/** |
| 858 |
* The base implementation of `_.mean` and `_.meanBy` without support for |
| 859 |
* iteratee shorthands. |
| 860 |
* |
| 861 |
* @private |
| 862 |
* @param {Array} array The array to iterate over. |
| 863 |
* @param {Function} iteratee The function invoked per iteration. |
| 864 |
* @returns {number} Returns the mean. |
| 865 |
*/ |
| 866 |
function baseMean(array, iteratee) { |
| 867 |
var length = array == null ? 0 : array.length; |
| 868 |
return length ? (baseSum(array, iteratee) / length) : NAN; |
| 869 |
} |
| 870 |
|
| 871 |
/** |
| 872 |
* The base implementation of `_.property` without support for deep paths. |
| 873 |
* |
| 874 |
* @private |
| 875 |
* @param {string} key The key of the property to get. |
| 876 |
* @returns {Function} Returns the new accessor function. |
| 877 |
*/ |
| 878 |
function baseProperty(key) { |
| 879 |
return function(object) { |
| 880 |
return object == null ? undefined : object[key]; |
| 881 |
}; |
| 882 |
} |
| 883 |
|
| 884 |
/** |
| 885 |
* The base implementation of `_.propertyOf` without support for deep paths. |
| 886 |
* |
| 887 |
* @private |
| 888 |
* @param {Object} object The object to query. |
| 889 |
* @returns {Function} Returns the new accessor function. |
| 890 |
*/ |
| 891 |
function basePropertyOf(object) { |
| 892 |
return function(key) { |
| 893 |
return object == null ? undefined : object[key]; |
| 894 |
}; |
| 895 |
} |
| 896 |
|
| 897 |
/** |
| 898 |
* The base implementation of `_.reduce` and `_.reduceRight`, without support |
| 899 |
* for iteratee shorthands, which iterates over `collection` using `eachFunc`. |
| 900 |
* |
| 901 |
* @private |
| 902 |
* @param {Array|Object} collection The collection to iterate over. |
| 903 |
* @param {Function} iteratee The function invoked per iteration. |
| 904 |
* @param {*} accumulator The initial value. |
| 905 |
* @param {boolean} initAccum Specify using the first or last element of |
| 906 |
* `collection` as the initial value. |
| 907 |
* @param {Function} eachFunc The function to iterate over `collection`. |
| 908 |
* @returns {*} Returns the accumulated value. |
| 909 |
*/ |
| 910 |
function baseReduce(collection, iteratee, accumulator, initAccum, eachFunc) { |
| 911 |
eachFunc(collection, function(value, index, collection) { |
| 912 |
accumulator = initAccum |
| 913 |
? (initAccum = false, value) |
| 914 |
: iteratee(accumulator, value, index, collection); |
| 915 |
}); |
| 916 |
return accumulator; |
| 917 |
} |
| 918 |
|
| 919 |
/** |
| 920 |
* The base implementation of `_.sortBy` which uses `comparer` to define the |
| 921 |
* sort order of `array` and replaces criteria objects with their corresponding |
| 922 |
* values. |
| 923 |
* |
| 924 |
* @private |
| 925 |
* @param {Array} array The array to sort. |
| 926 |
* @param {Function} comparer The function to define sort order. |
| 927 |
* @returns {Array} Returns `array`. |
| 928 |
*/ |
| 929 |
function baseSortBy(array, comparer) { |
| 930 |
var length = array.length; |
| 931 |
|
| 932 |
array.sort(comparer); |
| 933 |
while (length--) { |
| 934 |
array[length] = array[length].value; |
| 935 |
} |
| 936 |
return array; |
| 937 |
} |
| 938 |
|
| 939 |
/** |
| 940 |
* The base implementation of `_.sum` and `_.sumBy` without support for |
| 941 |
* iteratee shorthands. |
| 942 |
* |
| 943 |
* @private |
| 944 |
* @param {Array} array The array to iterate over. |
| 945 |
* @param {Function} iteratee The function invoked per iteration. |
| 946 |
* @returns {number} Returns the sum. |
| 947 |
*/ |
| 948 |
function baseSum(array, iteratee) { |
| 949 |
var result, |
| 950 |
index = -1, |
| 951 |
length = array.length; |
| 952 |
|
| 953 |
while (++index < length) { |
| 954 |
var current = iteratee(array[index]); |
| 955 |
if (current !== undefined) { |
| 956 |
result = result === undefined ? current : (result + current); |
| 957 |
} |
| 958 |
} |
| 959 |
return result; |
| 960 |
} |
| 961 |
|
| 962 |
/** |
| 963 |
* The base implementation of `_.times` without support for iteratee shorthands |
| 964 |
* or max array length checks. |
| 965 |
* |
| 966 |
* @private |
| 967 |
* @param {number} n The number of times to invoke `iteratee`. |
| 968 |
* @param {Function} iteratee The function invoked per iteration. |
| 969 |
* @returns {Array} Returns the array of results. |
| 970 |
*/ |
| 971 |
function baseTimes(n, iteratee) { |
| 972 |
var index = -1, |
| 973 |
result = Array(n); |
| 974 |
|
| 975 |
while (++index < n) { |
| 976 |
result[index] = iteratee(index); |
| 977 |
} |
| 978 |
return result; |
| 979 |
} |
| 980 |
|
| 981 |
/** |
| 982 |
* The base implementation of `_.toPairs` and `_.toPairsIn` which creates an array |
| 983 |
* of key-value pairs for `object` corresponding to the property names of `props`. |
| 984 |
* |
| 985 |
* @private |
| 986 |
* @param {Object} object The object to query. |
| 987 |
* @param {Array} props The property names to get values for. |
| 988 |
* @returns {Object} Returns the key-value pairs. |
| 989 |
*/ |
| 990 |
function baseToPairs(object, props) { |
| 991 |
return arrayMap(props, function(key) { |
| 992 |
return [key, object[key]]; |
| 993 |
}); |
| 994 |
} |
| 995 |
|
| 996 |
/** |
| 997 |
* The base implementation of `_.unary` without support for storing metadata. |
| 998 |
* |
| 999 |
* @private |
| 1000 |
* @param {Function} func The function to cap arguments for. |
| 1001 |
* @returns {Function} Returns the new capped function. |
| 1002 |
*/ |
| 1003 |
function baseUnary(func) { |
| 1004 |
return function(value) { |
| 1005 |
return func(value); |
| 1006 |
}; |
| 1007 |
} |
| 1008 |
|
| 1009 |
/** |
| 1010 |
* The base implementation of `_.values` and `_.valuesIn` which creates an |
| 1011 |
* array of `object` property values corresponding to the property names |
| 1012 |
* of `props`. |
| 1013 |
* |
| 1014 |
* @private |
| 1015 |
* @param {Object} object The object to query. |
| 1016 |
* @param {Array} props The property names to get values for. |
| 1017 |
* @returns {Object} Returns the array of property values. |
| 1018 |
*/ |
| 1019 |
function baseValues(object, props) { |
| 1020 |
return arrayMap(props, function(key) { |
| 1021 |
return object[key]; |
| 1022 |
}); |
| 1023 |
} |
| 1024 |
|
| 1025 |
/** |
| 1026 |
* Checks if a `cache` value for `key` exists. |
| 1027 |
* |
| 1028 |
* @private |
| 1029 |
* @param {Object} cache The cache to query. |
| 1030 |
* @param {string} key The key of the entry to check. |
| 1031 |
* @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. |
| 1032 |
*/ |
| 1033 |
function cacheHas(cache, key) { |
| 1034 |
return cache.has(key); |
| 1035 |
} |
| 1036 |
|
| 1037 |
/** |
| 1038 |
* Used by `_.trim` and `_.trimStart` to get the index of the first string symbol |
| 1039 |
* that is not found in the character symbols. |
| 1040 |
* |
| 1041 |
* @private |
| 1042 |
* @param {Array} strSymbols The string symbols to inspect. |
| 1043 |
* @param {Array} chrSymbols The character symbols to find. |
| 1044 |
* @returns {number} Returns the index of the first unmatched string symbol. |
| 1045 |
*/ |
| 1046 |
function charsStartIndex(strSymbols, chrSymbols) { |
| 1047 |
var index = -1, |
| 1048 |
length = strSymbols.length; |
| 1049 |
|
| 1050 |
while (++index < length && baseIndexOf(chrSymbols, strSymbols[index], 0) > -1) {} |
| 1051 |
return index; |
| 1052 |
} |
| 1053 |
|
| 1054 |
/** |
| 1055 |
* Used by `_.trim` and `_.trimEnd` to get the index of the last string symbol |
| 1056 |
* that is not found in the character symbols. |
| 1057 |
* |
| 1058 |
* @private |
| 1059 |
* @param {Array} strSymbols The string symbols to inspect. |
| 1060 |
* @param {Array} chrSymbols The character symbols to find. |
| 1061 |
* @returns {number} Returns the index of the last unmatched string symbol. |
| 1062 |
*/ |
| 1063 |
function charsEndIndex(strSymbols, chrSymbols) { |
| 1064 |
var index = strSymbols.length; |
| 1065 |
|
| 1066 |
while (index-- && baseIndexOf(chrSymbols, strSymbols[index], 0) > -1) {} |
| 1067 |
return index; |
| 1068 |
} |
| 1069 |
|
| 1070 |
/** |
| 1071 |
* Gets the number of `placeholder` occurrences in `array`. |
| 1072 |
* |
| 1073 |
* @private |
| 1074 |
* @param {Array} array The array to inspect. |
| 1075 |
* @param {*} placeholder The placeholder to search for. |
| 1076 |
* @returns {number} Returns the placeholder count. |
| 1077 |
*/ |
| 1078 |
function countHolders(array, placeholder) { |
| 1079 |
var length = array.length, |
| 1080 |
result = 0; |
| 1081 |
|
| 1082 |
while (length--) { |
| 1083 |
if (array[length] === placeholder) { |
| 1084 |
++result; |
| 1085 |
} |
| 1086 |
} |
| 1087 |
return result; |
| 1088 |
} |
| 1089 |
|
| 1090 |
/** |
| 1091 |
* Used by `_.deburr` to convert Latin-1 Supplement and Latin Extended-A |
| 1092 |
* letters to basic Latin letters. |
| 1093 |
* |
| 1094 |
* @private |
| 1095 |
* @param {string} letter The matched letter to deburr. |
| 1096 |
* @returns {string} Returns the deburred letter. |
| 1097 |
*/ |
| 1098 |
var deburrLetter = basePropertyOf(deburredLetters); |
| 1099 |
|
| 1100 |
/** |
| 1101 |
* Used by `_.escape` to convert characters to HTML entities. |
| 1102 |
* |
| 1103 |
* @private |
| 1104 |
* @param {string} chr The matched character to escape. |
| 1105 |
* @returns {string} Returns the escaped character. |
| 1106 |
*/ |
| 1107 |
var escapeHtmlChar = basePropertyOf(htmlEscapes); |
| 1108 |
|
| 1109 |
/** |
| 1110 |
* Used by `_.template` to escape characters for inclusion in compiled string literals. |
| 1111 |
* |
| 1112 |
* @private |
| 1113 |
* @param {string} chr The matched character to escape. |
| 1114 |
* @returns {string} Returns the escaped character. |
| 1115 |
*/ |
| 1116 |
function escapeStringChar(chr) { |
| 1117 |
return '\\' + stringEscapes[chr]; |
| 1118 |
} |
| 1119 |
|
| 1120 |
/** |
| 1121 |
* Gets the value at `key` of `object`. |
| 1122 |
* |
| 1123 |
* @private |
| 1124 |
* @param {Object} [object] The object to query. |
| 1125 |
* @param {string} key The key of the property to get. |
| 1126 |
* @returns {*} Returns the property value. |
| 1127 |
*/ |
| 1128 |
function getValue(object, key) { |
| 1129 |
return object == null ? undefined : object[key]; |
| 1130 |
} |
| 1131 |
|
| 1132 |
/** |
| 1133 |
* Checks if `string` contains Unicode symbols. |
| 1134 |
* |
| 1135 |
* @private |
| 1136 |
* @param {string} string The string to inspect. |
| 1137 |
* @returns {boolean} Returns `true` if a symbol is found, else `false`. |
| 1138 |
*/ |
| 1139 |
function hasUnicode(string) { |
| 1140 |
return reHasUnicode.test(string); |
| 1141 |
} |
| 1142 |
|
| 1143 |
/** |
| 1144 |
* Checks if `string` contains a word composed of Unicode symbols. |
| 1145 |
* |
| 1146 |
* @private |
| 1147 |
* @param {string} string The string to inspect. |
| 1148 |
* @returns {boolean} Returns `true` if a word is found, else `false`. |
| 1149 |
*/ |
| 1150 |
function hasUnicodeWord(string) { |
| 1151 |
return reHasUnicodeWord.test(string); |
| 1152 |
} |
| 1153 |
|
| 1154 |
/** |
| 1155 |
* Converts `iterator` to an array. |
| 1156 |
* |
| 1157 |
* @private |
| 1158 |
* @param {Object} iterator The iterator to convert. |
| 1159 |
* @returns {Array} Returns the converted array. |
| 1160 |
*/ |
| 1161 |
function iteratorToArray(iterator) { |
| 1162 |
var data, |
| 1163 |
result = []; |
| 1164 |
|
| 1165 |
while (!(data = iterator.next()).done) { |
| 1166 |
result.push(data.value); |
| 1167 |
} |
| 1168 |
return result; |
| 1169 |
} |
| 1170 |
|
| 1171 |
/** |
| 1172 |
* Converts `map` to its key-value pairs. |
| 1173 |
* |
| 1174 |
* @private |
| 1175 |
* @param {Object} map The map to convert. |
| 1176 |
* @returns {Array} Returns the key-value pairs. |
| 1177 |
*/ |
| 1178 |
function mapToArray(map) { |
| 1179 |
var index = -1, |
| 1180 |
result = Array(map.size); |
| 1181 |
|
| 1182 |
map.forEach(function(value, key) { |
| 1183 |
result[++index] = [key, value]; |
| 1184 |
}); |
| 1185 |
return result; |
| 1186 |
} |
| 1187 |
|
| 1188 |
/** |
| 1189 |
* Creates a unary function that invokes `func` with its argument transformed. |
| 1190 |
* |
| 1191 |
* @private |
| 1192 |
* @param {Function} func The function to wrap. |
| 1193 |
* @param {Function} transform The argument transform. |
| 1194 |
* @returns {Function} Returns the new function. |
| 1195 |
*/ |
| 1196 |
function overArg(func, transform) { |
| 1197 |
return function(arg) { |
| 1198 |
return func(transform(arg)); |
| 1199 |
}; |
| 1200 |
} |
| 1201 |
|
| 1202 |
/** |
| 1203 |
* Replaces all `placeholder` elements in `array` with an internal placeholder |
| 1204 |
* and returns an array of their indexes. |
| 1205 |
* |
| 1206 |
* @private |
| 1207 |
* @param {Array} array The array to modify. |
| 1208 |
* @param {*} placeholder The placeholder to replace. |
| 1209 |
* @returns {Array} Returns the new array of placeholder indexes. |
| 1210 |
*/ |
| 1211 |
function replaceHolders(array, placeholder) { |
| 1212 |
var index = -1, |
| 1213 |
length = array.length, |
| 1214 |
resIndex = 0, |
| 1215 |
result = []; |
| 1216 |
|
| 1217 |
while (++index < length) { |
| 1218 |
var value = array[index]; |
| 1219 |
if (value === placeholder || value === PLACEHOLDER) { |
| 1220 |
array[index] = PLACEHOLDER; |
| 1221 |
result[resIndex++] = index; |
| 1222 |
} |
| 1223 |
} |
| 1224 |
return result; |
| 1225 |
} |
| 1226 |
|
| 1227 |
/** |
| 1228 |
* Converts `set` to an array of its values. |
| 1229 |
* |
| 1230 |
* @private |
| 1231 |
* @param {Object} set The set to convert. |
| 1232 |
* @returns {Array} Returns the values. |
| 1233 |
*/ |
| 1234 |
function setToArray(set) { |
| 1235 |
var index = -1, |
| 1236 |
result = Array(set.size); |
| 1237 |
|
| 1238 |
set.forEach(function(value) { |
| 1239 |
result[++index] = value; |
| 1240 |
}); |
| 1241 |
return result; |
| 1242 |
} |
| 1243 |
|
| 1244 |
/** |
| 1245 |
* Converts `set` to its value-value pairs. |
| 1246 |
* |
| 1247 |
* @private |
| 1248 |
* @param {Object} set The set to convert. |
| 1249 |
* @returns {Array} Returns the value-value pairs. |
| 1250 |
*/ |
| 1251 |
function setToPairs(set) { |
| 1252 |
var index = -1, |
| 1253 |
result = Array(set.size); |
| 1254 |
|
| 1255 |
set.forEach(function(value) { |
| 1256 |
result[++index] = [value, value]; |
| 1257 |
}); |
| 1258 |
return result; |
| 1259 |
} |
| 1260 |
|
| 1261 |
/** |
| 1262 |
* A specialized version of `_.indexOf` which performs strict equality |
| 1263 |
* comparisons of values, i.e. `===`. |
| 1264 |
* |
| 1265 |
* @private |
| 1266 |
* @param {Array} array The array to inspect. |
| 1267 |
* @param {*} value The value to search for. |
| 1268 |
* @param {number} fromIndex The index to search from. |
| 1269 |
* @returns {number} Returns the index of the matched value, else `-1`. |
| 1270 |
*/ |
| 1271 |
function strictIndexOf(array, value, fromIndex) { |
| 1272 |
var index = fromIndex - 1, |
| 1273 |
length = array.length; |
| 1274 |
|
| 1275 |
while (++index < length) { |
| 1276 |
if (array[index] === value) { |
| 1277 |
return index; |
| 1278 |
} |
| 1279 |
} |
| 1280 |
return -1; |
| 1281 |
} |
| 1282 |
|
| 1283 |
/** |
| 1284 |
* A specialized version of `_.lastIndexOf` which performs strict equality |
| 1285 |
* comparisons of values, i.e. `===`. |
| 1286 |
* |
| 1287 |
* @private |
| 1288 |
* @param {Array} array The array to inspect. |
| 1289 |
* @param {*} value The value to search for. |
| 1290 |
* @param {number} fromIndex The index to search from. |
| 1291 |
* @returns {number} Returns the index of the matched value, else `-1`. |
| 1292 |
*/ |
| 1293 |
function strictLastIndexOf(array, value, fromIndex) { |
| 1294 |
var index = fromIndex + 1; |
| 1295 |
while (index--) { |
| 1296 |
if (array[index] === value) { |
| 1297 |
return index; |
| 1298 |
} |
| 1299 |
} |
| 1300 |
return index; |
| 1301 |
} |
| 1302 |
|
| 1303 |
/** |
| 1304 |
* Gets the number of symbols in `string`. |
| 1305 |
* |
| 1306 |
* @private |
| 1307 |
* @param {string} string The string to inspect. |
| 1308 |
* @returns {number} Returns the string size. |
| 1309 |
*/ |
| 1310 |
function stringSize(string) { |
| 1311 |
return hasUnicode(string) |
| 1312 |
? unicodeSize(string) |
| 1313 |
: asciiSize(string); |
| 1314 |
} |
| 1315 |
|
| 1316 |
/** |
| 1317 |
* Converts `string` to an array. |
| 1318 |
* |
| 1319 |
* @private |
| 1320 |
* @param {string} string The string to convert. |
| 1321 |
* @returns {Array} Returns the converted array. |
| 1322 |
*/ |
| 1323 |
function stringToArray(string) { |
| 1324 |
return hasUnicode(string) |
| 1325 |
? unicodeToArray(string) |
| 1326 |
: asciiToArray(string); |
| 1327 |
} |
| 1328 |
|
| 1329 |
/** |
| 1330 |
* Used by `_.unescape` to convert HTML entities to characters. |
| 1331 |
* |
| 1332 |
* @private |
| 1333 |
* @param {string} chr The matched character to unescape. |
| 1334 |
* @returns {string} Returns the unescaped character. |
| 1335 |
*/ |
| 1336 |
var unescapeHtmlChar = basePropertyOf(htmlUnescapes); |
| 1337 |
|
| 1338 |
/** |
| 1339 |
* Gets the size of a Unicode `string`. |
| 1340 |
* |
| 1341 |
* @private |
| 1342 |
* @param {string} string The string inspect. |
| 1343 |
* @returns {number} Returns the string size. |
| 1344 |
*/ |
| 1345 |
function unicodeSize(string) { |
| 1346 |
var result = reUnicode.lastIndex = 0; |
| 1347 |
while (reUnicode.test(string)) { |
| 1348 |
++result; |
| 1349 |
} |
| 1350 |
return result; |
| 1351 |
} |
| 1352 |
|
| 1353 |
/** |
| 1354 |
* Converts a Unicode `string` to an array. |
| 1355 |
* |
| 1356 |
* @private |
| 1357 |
* @param {string} string The string to convert. |
| 1358 |
* @returns {Array} Returns the converted array. |
| 1359 |
*/ |
| 1360 |
function unicodeToArray(string) { |
| 1361 |
return string.match(reUnicode) || []; |
| 1362 |
} |
| 1363 |
|
| 1364 |
/** |
| 1365 |
* Splits a Unicode `string` into an array of its words. |
| 1366 |
* |
| 1367 |
* @private |
| 1368 |
* @param {string} The string to inspect. |
| 1369 |
* @returns {Array} Returns the words of `string`. |
| 1370 |
*/ |
| 1371 |
function unicodeWords(string) { |
| 1372 |
return string.match(reUnicodeWord) || []; |
| 1373 |
} |
| 1374 |
|
| 1375 |
/*--------------------------------------------------------------------------*/ |
| 1376 |
|
| 1377 |
/** |
| 1378 |
* Create a new pristine `lodash` function using the `context` object. |
| 1379 |
* |
| 1380 |
* @static |
| 1381 |
* @memberOf _ |
| 1382 |
* @since 1.1.0 |
| 1383 |
* @category Util |
| 1384 |
* @param {Object} [context=root] The context object. |
| 1385 |
* @returns {Function} Returns a new `lodash` function. |
| 1386 |
* @example |
| 1387 |
* |
| 1388 |
* _.mixin({ 'foo': _.constant('foo') }); |
| 1389 |
* |
| 1390 |
* var lodash = _.runInContext(); |
| 1391 |
* lodash.mixin({ 'bar': lodash.constant('bar') }); |
| 1392 |
* |
| 1393 |
* _.isFunction(_.foo); |
| 1394 |
* // => true |
| 1395 |
* _.isFunction(_.bar); |
| 1396 |
* // => false |
| 1397 |
* |
| 1398 |
* lodash.isFunction(lodash.foo); |
| 1399 |
* // => false |
| 1400 |
* lodash.isFunction(lodash.bar); |
| 1401 |
* // => true |
| 1402 |
* |
| 1403 |
* // Create a suped-up `defer` in Node.js. |
| 1404 |
* var defer = _.runInContext({ 'setTimeout': setImmediate }).defer; |
| 1405 |
*/ |
| 1406 |
var runInContext = (function runInContext(context) { |
| 1407 |
context = context == null ? root : _.defaults(root.Object(), context, _.pick(root, contextProps)); |
| 1408 |
|
| 1409 |
/** Built-in constructor references. */ |
| 1410 |
var Array = context.Array, |
| 1411 |
Date = context.Date, |
| 1412 |
Error = context.Error, |
| 1413 |
Function = context.Function, |
| 1414 |
Math = context.Math, |
| 1415 |
Object = context.Object, |
| 1416 |
RegExp = context.RegExp, |
| 1417 |
String = context.String, |
| 1418 |
TypeError = context.TypeError; |
| 1419 |
|
| 1420 |
/** Used for built-in method references. */ |
| 1421 |
var arrayProto = Array.prototype, |
| 1422 |
funcProto = Function.prototype, |
| 1423 |
objectProto = Object.prototype; |
| 1424 |
|
| 1425 |
/** Used to detect overreaching core-js shims. */ |
| 1426 |
var coreJsData = context['__core-js_shared__']; |
| 1427 |
|
| 1428 |
/** Used to resolve the decompiled source of functions. */ |
| 1429 |
var funcToString = funcProto.toString; |
| 1430 |
|
| 1431 |
/** Used to check objects for own properties. */ |
| 1432 |
var hasOwnProperty = objectProto.hasOwnProperty; |
| 1433 |
|
| 1434 |
/** Used to generate unique IDs. */ |
| 1435 |
var idCounter = 0; |
| 1436 |
|
| 1437 |
/** Used to detect methods masquerading as native. */ |
| 1438 |
var maskSrcKey = (function() { |
| 1439 |
var uid = /[^.]+$/.exec(coreJsData && coreJsData.keys && coreJsData.keys.IE_PROTO || ''); |
| 1440 |
return uid ? ('Symbol(src)_1.' + uid) : ''; |
| 1441 |
}()); |
| 1442 |
|
| 1443 |
/** |
| 1444 |
* Used to resolve the |
| 1445 |
* [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring) |
| 1446 |
* of values. |
| 1447 |
*/ |
| 1448 |
var nativeObjectToString = objectProto.toString; |
| 1449 |
|
| 1450 |
/** Used to infer the `Object` constructor. */ |
| 1451 |
var objectCtorString = funcToString.call(Object); |
| 1452 |
|
| 1453 |
/** Used to restore the original `_` reference in `_.noConflict`. */ |
| 1454 |
var oldDash = root._; |
| 1455 |
|
| 1456 |
/** Used to detect if a method is native. */ |
| 1457 |
var reIsNative = RegExp('^' + |
| 1458 |
funcToString.call(hasOwnProperty).replace(reRegExpChar, '\\$&') |
| 1459 |
.replace(/hasOwnProperty|(function).*?(?=\\\()| for .+?(?=\\\])/g, '$1.*?') + '$' |
| 1460 |
); |
| 1461 |
|
| 1462 |
/** Built-in value references. */ |
| 1463 |
var Buffer = moduleExports ? context.Buffer : undefined, |
| 1464 |
Symbol = context.Symbol, |
| 1465 |
Uint8Array = context.Uint8Array, |
| 1466 |
allocUnsafe = Buffer ? Buffer.allocUnsafe : undefined, |
| 1467 |
getPrototype = overArg(Object.getPrototypeOf, Object), |
| 1468 |
objectCreate = Object.create, |
| 1469 |
propertyIsEnumerable = objectProto.propertyIsEnumerable, |
| 1470 |
splice = arrayProto.splice, |
| 1471 |
spreadableSymbol = Symbol ? Symbol.isConcatSpreadable : undefined, |
| 1472 |
symIterator = Symbol ? Symbol.iterator : undefined, |
| 1473 |
symToStringTag = Symbol ? Symbol.toStringTag : undefined; |
| 1474 |
|
| 1475 |
var defineProperty = (function() { |
| 1476 |
try { |
| 1477 |
var func = getNative(Object, 'defineProperty'); |
| 1478 |
func({}, '', {}); |
| 1479 |
return func; |
| 1480 |
} catch (e) {} |
| 1481 |
}()); |
| 1482 |
|
| 1483 |
/** Mocked built-ins. */ |
| 1484 |
var ctxClearTimeout = context.clearTimeout !== root.clearTimeout && context.clearTimeout, |
| 1485 |
ctxNow = Date && Date.now !== root.Date.now && Date.now, |
| 1486 |
ctxSetTimeout = context.setTimeout !== root.setTimeout && context.setTimeout; |
| 1487 |
|
| 1488 |
/* Built-in method references for those with the same name as other `lodash` methods. */ |
| 1489 |
var nativeCeil = Math.ceil, |
| 1490 |
nativeFloor = Math.floor, |
| 1491 |
nativeGetSymbols = Object.getOwnPropertySymbols, |
| 1492 |
nativeIsBuffer = Buffer ? Buffer.isBuffer : undefined, |
| 1493 |
nativeIsFinite = context.isFinite, |
| 1494 |
nativeJoin = arrayProto.join, |
| 1495 |
nativeKeys = overArg(Object.keys, Object), |
| 1496 |
nativeMax = Math.max, |
| 1497 |
nativeMin = Math.min, |
| 1498 |
nativeNow = Date.now, |
| 1499 |
nativeParseInt = context.parseInt, |
| 1500 |
nativeRandom = Math.random, |
| 1501 |
nativeReverse = arrayProto.reverse; |
| 1502 |
|
| 1503 |
/* Built-in method references that are verified to be native. */ |
| 1504 |
var DataView = getNative(context, 'DataView'), |
| 1505 |
Map = getNative(context, 'Map'), |
| 1506 |
Promise = getNative(context, 'Promise'), |
| 1507 |
Set = getNative(context, 'Set'), |
| 1508 |
WeakMap = getNative(context, 'WeakMap'), |
| 1509 |
nativeCreate = getNative(Object, 'create'); |
| 1510 |
|
| 1511 |
/** Used to store function metadata. */ |
| 1512 |
var metaMap = WeakMap && new WeakMap; |
| 1513 |
|
| 1514 |
/** Used to lookup unminified function names. */ |
| 1515 |
var realNames = {}; |
| 1516 |
|
| 1517 |
/** Used to detect maps, sets, and weakmaps. */ |
| 1518 |
var dataViewCtorString = toSource(DataView), |
| 1519 |
mapCtorString = toSource(Map), |
| 1520 |
promiseCtorString = toSource(Promise), |
| 1521 |
setCtorString = toSource(Set), |
| 1522 |
weakMapCtorString = toSource(WeakMap); |
| 1523 |
|
| 1524 |
/** Used to convert symbols to primitives and strings. */ |
| 1525 |
var symbolProto = Symbol ? Symbol.prototype : undefined, |
| 1526 |
symbolValueOf = symbolProto ? symbolProto.valueOf : undefined, |
| 1527 |
symbolToString = symbolProto ? symbolProto.toString : undefined; |
| 1528 |
|
| 1529 |
/*------------------------------------------------------------------------*/ |
| 1530 |
|
| 1531 |
/** |
| 1532 |
* Creates a `lodash` object which wraps `value` to enable implicit method |
| 1533 |
* chain sequences. Methods that operate on and return arrays, collections, |
| 1534 |
* and functions can be chained together. Methods that retrieve a single value |
| 1535 |
* or may return a primitive value will automatically end the chain sequence |
| 1536 |
* and return the unwrapped value. Otherwise, the value must be unwrapped |
| 1537 |
* with `_#value`. |
| 1538 |
* |
| 1539 |
* Explicit chain sequences, which must be unwrapped with `_#value`, may be |
| 1540 |
* enabled using `_.chain`. |
| 1541 |
* |
| 1542 |
* The execution of chained methods is lazy, that is, it's deferred until |
| 1543 |
* `_#value` is implicitly or explicitly called. |
| 1544 |
* |
| 1545 |
* Lazy evaluation allows several methods to support shortcut fusion. |
| 1546 |
* Shortcut fusion is an optimization to merge iteratee calls; this avoids |
| 1547 |
* the creation of intermediate arrays and can greatly reduce the number of |
| 1548 |
* iteratee executions. Sections of a chain sequence qualify for shortcut |
| 1549 |
* fusion if the section is applied to an array and iteratees accept only |
| 1550 |
* one argument. The heuristic for whether a section qualifies for shortcut |
| 1551 |
* fusion is subject to change. |
| 1552 |
* |
| 1553 |
* Chaining is supported in custom builds as long as the `_#value` method is |
| 1554 |
* directly or indirectly included in the build. |
| 1555 |
* |
| 1556 |
* In addition to lodash methods, wrappers have `Array` and `String` methods. |
| 1557 |
* |
| 1558 |
* The wrapper `Array` methods are: |
| 1559 |
* `concat`, `join`, `pop`, `push`, `shift`, `sort`, `splice`, and `unshift` |
| 1560 |
* |
| 1561 |
* The wrapper `String` methods are: |
| 1562 |
* `replace` and `split` |
| 1563 |
* |
| 1564 |
* The wrapper methods that support shortcut fusion are: |
| 1565 |
* `at`, `compact`, `drop`, `dropRight`, `dropWhile`, `filter`, `find`, |
| 1566 |
* `findLast`, `head`, `initial`, `last`, `map`, `reject`, `reverse`, `slice`, |
| 1567 |
* `tail`, `take`, `takeRight`, `takeRightWhile`, `takeWhile`, and `toArray` |
| 1568 |
* |
| 1569 |
* The chainable wrapper methods are: |
| 1570 |
* `after`, `ary`, `assign`, `assignIn`, `assignInWith`, `assignWith`, `at`, |
| 1571 |
* `before`, `bind`, `bindAll`, `bindKey`, `castArray`, `chain`, `chunk`, |
| 1572 |
* `commit`, `compact`, `concat`, `conforms`, `constant`, `countBy`, `create`, |
| 1573 |
* `curry`, `debounce`, `defaults`, `defaultsDeep`, `defer`, `delay`, |
| 1574 |
* `difference`, `differenceBy`, `differenceWith`, `drop`, `dropRight`, |
| 1575 |
* `dropRightWhile`, `dropWhile`, `extend`, `extendWith`, `fill`, `filter`, |
| 1576 |
* `flatMap`, `flatMapDeep`, `flatMapDepth`, `flatten`, `flattenDeep`, |
| 1577 |
* `flattenDepth`, `flip`, `flow`, `flowRight`, `fromPairs`, `functions`, |
| 1578 |
* `functionsIn`, `groupBy`, `initial`, `intersection`, `intersectionBy`, |
| 1579 |
* `intersectionWith`, `invert`, `invertBy`, `invokeMap`, `iteratee`, `keyBy`, |
| 1580 |
* `keys`, `keysIn`, `map`, `mapKeys`, `mapValues`, `matches`, `matchesProperty`, |
| 1581 |
* `memoize`, `merge`, `mergeWith`, `method`, `methodOf`, `mixin`, `negate`, |
| 1582 |
* `nthArg`, `omit`, `omitBy`, `once`, `orderBy`, `over`, `overArgs`, |
| 1583 |
* `overEvery`, `overSome`, `partial`, `partialRight`, `partition`, `pick`, |
| 1584 |
* `pickBy`, `plant`, `property`, `propertyOf`, `pull`, `pullAll`, `pullAllBy`, |
| 1585 |
* `pullAllWith`, `pullAt`, `push`, `range`, `rangeRight`, `rearg`, `reject`, |
| 1586 |
* `remove`, `rest`, `reverse`, `sampleSize`, `set`, `setWith`, `shuffle`, |
| 1587 |
* `slice`, `sort`, `sortBy`, `splice`, `spread`, `tail`, `take`, `takeRight`, |
| 1588 |
* `takeRightWhile`, `takeWhile`, `tap`, `throttle`, `thru`, `toArray`, |
| 1589 |
* `toPairs`, `toPairsIn`, `toPath`, `toPlainObject`, `transform`, `unary`, |
| 1590 |
* `union`, `unionBy`, `unionWith`, `uniq`, `uniqBy`, `uniqWith`, `unset`, |
| 1591 |
* `unshift`, `unzip`, `unzipWith`, `update`, `updateWith`, `values`, |
| 1592 |
* `valuesIn`, `without`, `wrap`, `xor`, `xorBy`, `xorWith`, `zip`, |
| 1593 |
* `zipObject`, `zipObjectDeep`, and `zipWith` |
| 1594 |
* |
| 1595 |
* The wrapper methods that are **not** chainable by default are: |
| 1596 |
* `add`, `attempt`, `camelCase`, `capitalize`, `ceil`, `clamp`, `clone`, |
| 1597 |
* `cloneDeep`, `cloneDeepWith`, `cloneWith`, `conformsTo`, `deburr`, |
| 1598 |
* `defaultTo`, `divide`, `each`, `eachRight`, `endsWith`, `eq`, `escape`, |
| 1599 |
* `escapeRegExp`, `every`, `find`, `findIndex`, `findKey`, `findLast`, |
| 1600 |
* `findLastIndex`, `findLastKey`, `first`, `floor`, `forEach`, `forEachRight`, |
| 1601 |
* `forIn`, `forInRight`, `forOwn`, `forOwnRight`, `get`, `gt`, `gte`, `has`, |
| 1602 |
* `hasIn`, `head`, `identity`, `includes`, `indexOf`, `inRange`, `invoke`, |
| 1603 |
* `isArguments`, `isArray`, `isArrayBuffer`, `isArrayLike`, `isArrayLikeObject`, |
| 1604 |
* `isBoolean`, `isBuffer`, `isDate`, `isElement`, `isEmpty`, `isEqual`, |
| 1605 |
* `isEqualWith`, `isError`, `isFinite`, `isFunction`, `isInteger`, `isLength`, |
| 1606 |
* `isMap`, `isMatch`, `isMatchWith`, `isNaN`, `isNative`, `isNil`, `isNull`, |
| 1607 |
* `isNumber`, `isObject`, `isObjectLike`, `isPlainObject`, `isRegExp`, |
| 1608 |
* `isSafeInteger`, `isSet`, `isString`, `isUndefined`, `isTypedArray`, |
| 1609 |
* `isWeakMap`, `isWeakSet`, `join`, `kebabCase`, `last`, `lastIndexOf`, |
| 1610 |
* `lowerCase`, `lowerFirst`, `lt`, `lte`, `max`, `maxBy`, `mean`, `meanBy`, |
| 1611 |
* `min`, `minBy`, `multiply`, `noConflict`, `noop`, `now`, `nth`, `pad`, |
| 1612 |
* `padEnd`, `padStart`, `parseInt`, `pop`, `random`, `reduce`, `reduceRight`, |
| 1613 |
* `repeat`, `result`, `round`, `runInContext`, `sample`, `shift`, `size`, |
| 1614 |
* `snakeCase`, `some`, `sortedIndex`, `sortedIndexBy`, `sortedLastIndex`, |
| 1615 |
* `sortedLastIndexBy`, `startCase`, `startsWith`, `stubArray`, `stubFalse`, |
| 1616 |
* `stubObject`, `stubString`, `stubTrue`, `subtract`, `sum`, `sumBy`, |
| 1617 |
* `template`, `times`, `toFinite`, `toInteger`, `toJSON`, `toLength`, |
| 1618 |
* `toLower`, `toNumber`, `toSafeInteger`, `toString`, `toUpper`, `trim`, |
| 1619 |
* `trimEnd`, `trimStart`, `truncate`, `unescape`, `uniqueId`, `upperCase`, |
| 1620 |
* `upperFirst`, `value`, and `words` |
| 1621 |
* |
| 1622 |
* @name _ |
| 1623 |
* @constructor |
| 1624 |
* @category Seq |
| 1625 |
* @param {*} value The value to wrap in a `lodash` instance. |
| 1626 |
* @returns {Object} Returns the new `lodash` wrapper instance. |
| 1627 |
* @example |
| 1628 |
* |
| 1629 |
* function square(n) { |
| 1630 |
* return n * n; |
| 1631 |
* } |
| 1632 |
* |
| 1633 |
* var wrapped = _([1, 2, 3]); |
| 1634 |
* |
| 1635 |
* // Returns an unwrapped value. |
| 1636 |
* wrapped.reduce(_.add); |
| 1637 |
* // => 6 |
| 1638 |
* |
| 1639 |
* // Returns a wrapped value. |
| 1640 |
* var squares = wrapped.map(square); |
| 1641 |
* |
| 1642 |
* _.isArray(squares); |
| 1643 |
* // => false |
| 1644 |
* |
| 1645 |
* _.isArray(squares.value()); |
| 1646 |
* // => true |
| 1647 |
*/ |
| 1648 |
function lodash(value) { |
| 1649 |
if (isObjectLike(value) && !isArray(value) && !(value instanceof LazyWrapper)) { |
| 1650 |
if (value instanceof LodashWrapper) { |
| 1651 |
return value; |
| 1652 |
} |
| 1653 |
if (hasOwnProperty.call(value, '__wrapped__')) { |
| 1654 |
return wrapperClone(value); |
| 1655 |
} |
| 1656 |
} |
| 1657 |
return new LodashWrapper(value); |
| 1658 |
} |
| 1659 |
|
| 1660 |
/** |
| 1661 |
* The base implementation of `_.create` without support for assigning |
| 1662 |
* properties to the created object. |
| 1663 |
* |
| 1664 |
* @private |
| 1665 |
* @param {Object} proto The object to inherit from. |
| 1666 |
* @returns {Object} Returns the new object. |
| 1667 |
*/ |
| 1668 |
var baseCreate = (function() { |
| 1669 |
function object() {} |
| 1670 |
return function(proto) { |
| 1671 |
if (!isObject(proto)) { |
| 1672 |
return {}; |
| 1673 |
} |
| 1674 |
if (objectCreate) { |
| 1675 |
return objectCreate(proto); |
| 1676 |
} |
| 1677 |
object.prototype = proto; |
| 1678 |
var result = new object; |
| 1679 |
object.prototype = undefined; |
| 1680 |
return result; |
| 1681 |
}; |
| 1682 |
}()); |
| 1683 |
|
| 1684 |
/** |
| 1685 |
* The function whose prototype chain sequence wrappers inherit from. |
| 1686 |
* |
| 1687 |
* @private |
| 1688 |
*/ |
| 1689 |
function baseLodash() { |
| 1690 |
// No operation performed. |
| 1691 |
} |
| 1692 |
|
| 1693 |
/** |
| 1694 |
* The base constructor for creating `lodash` wrapper objects. |
| 1695 |
* |
| 1696 |
* @private |
| 1697 |
* @param {*} value The value to wrap. |
| 1698 |
* @param {boolean} [chainAll] Enable explicit method chain sequences. |
| 1699 |
*/ |
| 1700 |
function LodashWrapper(value, chainAll) { |
| 1701 |
this.__wrapped__ = value; |
| 1702 |
this.__actions__ = []; |
| 1703 |
this.__chain__ = !!chainAll; |
| 1704 |
this.__index__ = 0; |
| 1705 |
this.__values__ = undefined; |
| 1706 |
} |
| 1707 |
|
| 1708 |
/** |
| 1709 |
* By default, the template delimiters used by lodash are like those in |
| 1710 |
* embedded Ruby (ERB) as well as ES2015 template strings. Change the |
| 1711 |
* following template settings to use alternative delimiters. |
| 1712 |
* |
| 1713 |
* @static |
| 1714 |
* @memberOf _ |
| 1715 |
* @type {Object} |
| 1716 |
*/ |
| 1717 |
lodash.templateSettings = { |
| 1718 |
|
| 1719 |
/** |
| 1720 |
* Used to detect `data` property values to be HTML-escaped. |
| 1721 |
* |
| 1722 |
* @memberOf _.templateSettings |
| 1723 |
* @type {RegExp} |
| 1724 |
*/ |
| 1725 |
'escape': reEscape, |
| 1726 |
|
| 1727 |
/** |
| 1728 |
* Used to detect code to be evaluated. |
| 1729 |
* |
| 1730 |
* @memberOf _.templateSettings |
| 1731 |
* @type {RegExp} |
| 1732 |
*/ |
| 1733 |
'evaluate': reEvaluate, |
| 1734 |
|
| 1735 |
/** |
| 1736 |
* Used to detect `data` property values to inject. |
| 1737 |
* |
| 1738 |
* @memberOf _.templateSettings |
| 1739 |
* @type {RegExp} |
| 1740 |
*/ |
| 1741 |
'interpolate': reInterpolate, |
| 1742 |
|
| 1743 |
/** |
| 1744 |
* Used to reference the data object in the template text. |
| 1745 |
* |
| 1746 |
* @memberOf _.templateSettings |
| 1747 |
* @type {string} |
| 1748 |
*/ |
| 1749 |
'variable': '', |
| 1750 |
|
| 1751 |
/** |
| 1752 |
* Used to import variables into the compiled template. |
| 1753 |
* |
| 1754 |
* @memberOf _.templateSettings |
| 1755 |
* @type {Object} |
| 1756 |
*/ |
| 1757 |
'imports': { |
| 1758 |
|
| 1759 |
/** |
| 1760 |
* A reference to the `lodash` function. |
| 1761 |
* |
| 1762 |
* @memberOf _.templateSettings.imports |
| 1763 |
* @type {Function} |
| 1764 |
*/ |
| 1765 |
'_': lodash |
| 1766 |
} |
| 1767 |
}; |
| 1768 |
|
| 1769 |
// Ensure wrappers are instances of `baseLodash`. |
| 1770 |
lodash.prototype = baseLodash.prototype; |
| 1771 |
lodash.prototype.constructor = lodash; |
| 1772 |
|
| 1773 |
LodashWrapper.prototype = baseCreate(baseLodash.prototype); |
| 1774 |
LodashWrapper.prototype.constructor = LodashWrapper; |
| 1775 |
|
| 1776 |
/*------------------------------------------------------------------------*/ |
| 1777 |
|
| 1778 |
/** |
| 1779 |
* Creates a lazy wrapper object which wraps `value` to enable lazy evaluation. |
| 1780 |
* |
| 1781 |
* @private |
| 1782 |
* @constructor |
| 1783 |
* @param {*} value The value to wrap. |
| 1784 |
*/ |
| 1785 |
function LazyWrapper(value) { |
| 1786 |
this.__wrapped__ = value; |
| 1787 |
this.__actions__ = []; |
| 1788 |
this.__dir__ = 1; |
| 1789 |
this.__filtered__ = false; |
| 1790 |
this.__iteratees__ = []; |
| 1791 |
this.__takeCount__ = MAX_ARRAY_LENGTH; |
| 1792 |
this.__views__ = []; |
| 1793 |
} |
| 1794 |
|
| 1795 |
/** |
| 1796 |
* Creates a clone of the lazy wrapper object. |
| 1797 |
* |
| 1798 |
* @private |
| 1799 |
* @name clone |
| 1800 |
* @memberOf LazyWrapper |
| 1801 |
* @returns {Object} Returns the cloned `LazyWrapper` object. |
| 1802 |
*/ |
| 1803 |
function lazyClone() { |
| 1804 |
var result = new LazyWrapper(this.__wrapped__); |
| 1805 |
result.__actions__ = copyArray(this.__actions__); |
| 1806 |
result.__dir__ = this.__dir__; |
| 1807 |
result.__filtered__ = this.__filtered__; |
| 1808 |
result.__iteratees__ = copyArray(this.__iteratees__); |
| 1809 |
result.__takeCount__ = this.__takeCount__; |
| 1810 |
result.__views__ = copyArray(this.__views__); |
| 1811 |
return result; |
| 1812 |
} |
| 1813 |
|
| 1814 |
/** |
| 1815 |
* Reverses the direction of lazy iteration. |
| 1816 |
* |
| 1817 |
* @private |
| 1818 |
* @name reverse |
| 1819 |
* @memberOf LazyWrapper |
| 1820 |
* @returns {Object} Returns the new reversed `LazyWrapper` object. |
| 1821 |
*/ |
| 1822 |
function lazyReverse() { |
| 1823 |
if (this.__filtered__) { |
| 1824 |
var result = new LazyWrapper(this); |
| 1825 |
result.__dir__ = -1; |
| 1826 |
result.__filtered__ = true; |
| 1827 |
} else { |
| 1828 |
result = this.clone(); |
| 1829 |
result.__dir__ *= -1; |
| 1830 |
} |
| 1831 |
return result; |
| 1832 |
} |
| 1833 |
|
| 1834 |
/** |
| 1835 |
* Extracts the unwrapped value from its lazy wrapper. |
| 1836 |
* |
| 1837 |
* @private |
| 1838 |
* @name value |
| 1839 |
* @memberOf LazyWrapper |
| 1840 |
* @returns {*} Returns the unwrapped value. |
| 1841 |
*/ |
| 1842 |
function lazyValue() { |
| 1843 |
var array = this.__wrapped__.value(), |
| 1844 |
dir = this.__dir__, |
| 1845 |
isArr = isArray(array), |
| 1846 |
isRight = dir < 0, |
| 1847 |
arrLength = isArr ? array.length : 0, |
| 1848 |
view = getView(0, arrLength, this.__views__), |
| 1849 |
start = view.start, |
| 1850 |
end = view.end, |
| 1851 |
length = end - start, |
| 1852 |
index = isRight ? end : (start - 1), |
| 1853 |
iteratees = this.__iteratees__, |
| 1854 |
iterLength = iteratees.length, |
| 1855 |
resIndex = 0, |
| 1856 |
takeCount = nativeMin(length, this.__takeCount__); |
| 1857 |
|
| 1858 |
if (!isArr || (!isRight && arrLength == length && takeCount == length)) { |
| 1859 |
return baseWrapperValue(array, this.__actions__); |
| 1860 |
} |
| 1861 |
var result = []; |
| 1862 |
|
| 1863 |
outer: |
| 1864 |
while (length-- && resIndex < takeCount) { |
| 1865 |
index += dir; |
| 1866 |
|
| 1867 |
var iterIndex = -1, |
| 1868 |
value = array[index]; |
| 1869 |
|
| 1870 |
while (++iterIndex < iterLength) { |
| 1871 |
var data = iteratees[iterIndex], |
| 1872 |
iteratee = data.iteratee, |
| 1873 |
type = data.type, |
| 1874 |
computed = iteratee(value); |
| 1875 |
|
| 1876 |
if (type == LAZY_MAP_FLAG) { |
| 1877 |
value = computed; |
| 1878 |
} else if (!computed) { |
| 1879 |
if (type == LAZY_FILTER_FLAG) { |
| 1880 |
continue outer; |
| 1881 |
} else { |
| 1882 |
break outer; |
| 1883 |
} |
| 1884 |
} |
| 1885 |
} |
| 1886 |
result[resIndex++] = value; |
| 1887 |
} |
| 1888 |
return result; |
| 1889 |
} |
| 1890 |
|
| 1891 |
// Ensure `LazyWrapper` is an instance of `baseLodash`. |
| 1892 |
LazyWrapper.prototype = baseCreate(baseLodash.prototype); |
| 1893 |
LazyWrapper.prototype.constructor = LazyWrapper; |
| 1894 |
|
| 1895 |
/*------------------------------------------------------------------------*/ |
| 1896 |
|
| 1897 |
/** |
| 1898 |
* Creates a hash object. |
| 1899 |
* |
| 1900 |
* @private |
| 1901 |
* @constructor |
| 1902 |
* @param {Array} [entries] The key-value pairs to cache. |
| 1903 |
*/ |
| 1904 |
function Hash(entries) { |
| 1905 |
var index = -1, |
| 1906 |
length = entries == null ? 0 : entries.length; |
| 1907 |
|
| 1908 |
this.clear(); |
| 1909 |
while (++index < length) { |
| 1910 |
var entry = entries[index]; |
| 1911 |
this.set(entry[0], entry[1]); |
| 1912 |
} |
| 1913 |
} |
| 1914 |
|
| 1915 |
/** |
| 1916 |
* Removes all key-value entries from the hash. |
| 1917 |
* |
| 1918 |
* @private |
| 1919 |
* @name clear |
| 1920 |
* @memberOf Hash |
| 1921 |
*/ |
| 1922 |
function hashClear() { |
| 1923 |
this.__data__ = nativeCreate ? nativeCreate(null) : {}; |
| 1924 |
this.size = 0; |
| 1925 |
} |
| 1926 |
|
| 1927 |
/** |
| 1928 |
* Removes `key` and its value from the hash. |
| 1929 |
* |
| 1930 |
* @private |
| 1931 |
* @name delete |
| 1932 |
* @memberOf Hash |
| 1933 |
* @param {Object} hash The hash to modify. |
| 1934 |
* @param {string} key The key of the value to remove. |
| 1935 |
* @returns {boolean} Returns `true` if the entry was removed, else `false`. |
| 1936 |
*/ |
| 1937 |
function hashDelete(key) { |
| 1938 |
var result = this.has(key) && delete this.__data__[key]; |
| 1939 |
this.size -= result ? 1 : 0; |
| 1940 |
return result; |
| 1941 |
} |
| 1942 |
|
| 1943 |
/** |
| 1944 |
* Gets the hash value for `key`. |
| 1945 |
* |
| 1946 |
* @private |
| 1947 |
* @name get |
| 1948 |
* @memberOf Hash |
| 1949 |
* @param {string} key The key of the value to get. |
| 1950 |
* @returns {*} Returns the entry value. |
| 1951 |
*/ |
| 1952 |
function hashGet(key) { |
| 1953 |
var data = this.__data__; |
| 1954 |
if (nativeCreate) { |
| 1955 |
var result = data[key]; |
| 1956 |
return result === HASH_UNDEFINED ? undefined : result; |
| 1957 |
} |
| 1958 |
return hasOwnProperty.call(data, key) ? data[key] : undefined; |
| 1959 |
} |
| 1960 |
|
| 1961 |
/** |
| 1962 |
* Checks if a hash value for `key` exists. |
| 1963 |
* |
| 1964 |
* @private |
| 1965 |
* @name has |
| 1966 |
* @memberOf Hash |
| 1967 |
* @param {string} key The key of the entry to check. |
| 1968 |
* @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. |
| 1969 |
*/ |
| 1970 |
function hashHas(key) { |
| 1971 |
var data = this.__data__; |
| 1972 |
return nativeCreate ? (data[key] !== undefined) : hasOwnProperty.call(data, key); |
| 1973 |
} |
| 1974 |
|
| 1975 |
/** |
| 1976 |
* Sets the hash `key` to `value`. |
| 1977 |
* |
| 1978 |
* @private |
| 1979 |
* @name set |
| 1980 |
* @memberOf Hash |
| 1981 |
* @param {string} key The key of the value to set. |
| 1982 |
* @param {*} value The value to set. |
| 1983 |
* @returns {Object} Returns the hash instance. |
| 1984 |
*/ |
| 1985 |
function hashSet(key, value) { |
| 1986 |
var data = this.__data__; |
| 1987 |
this.size += this.has(key) ? 0 : 1; |
| 1988 |
data[key] = (nativeCreate && value === undefined) ? HASH_UNDEFINED : value; |
| 1989 |
return this; |
| 1990 |
} |
| 1991 |
|
| 1992 |
// Add methods to `Hash`. |
| 1993 |
Hash.prototype.clear = hashClear; |
| 1994 |
Hash.prototype['delete'] = hashDelete; |
| 1995 |
Hash.prototype.get = hashGet; |
| 1996 |
Hash.prototype.has = hashHas; |
| 1997 |
Hash.prototype.set = hashSet; |
| 1998 |
|
| 1999 |
/*------------------------------------------------------------------------*/ |
| 2000 |
|
| 2001 |
/** |
| 2002 |
* Creates an list cache object. |
| 2003 |
* |
| 2004 |
* @private |
| 2005 |
* @constructor |
| 2006 |
* @param {Array} [entries] The key-value pairs to cache. |
| 2007 |
*/ |
| 2008 |
function ListCache(entries) { |
| 2009 |
var index = -1, |
| 2010 |
length = entries == null ? 0 : entries.length; |
| 2011 |
|
| 2012 |
this.clear(); |
| 2013 |
while (++index < length) { |
| 2014 |
var entry = entries[index]; |
| 2015 |
this.set(entry[0], entry[1]); |
| 2016 |
} |
| 2017 |
} |
| 2018 |
|
| 2019 |
/** |
| 2020 |
* Removes all key-value entries from the list cache. |
| 2021 |
* |
| 2022 |
* @private |
| 2023 |
* @name clear |
| 2024 |
* @memberOf ListCache |
| 2025 |
*/ |
| 2026 |
function listCacheClear() { |
| 2027 |
this.__data__ = []; |
| 2028 |
this.size = 0; |
| 2029 |
} |
| 2030 |
|
| 2031 |
/** |
| 2032 |
* Removes `key` and its value from the list cache. |
| 2033 |
* |
| 2034 |
* @private |
| 2035 |
* @name delete |
| 2036 |
* @memberOf ListCache |
| 2037 |
* @param {string} key The key of the value to remove. |
| 2038 |
* @returns {boolean} Returns `true` if the entry was removed, else `false`. |
| 2039 |
*/ |
| 2040 |
function listCacheDelete(key) { |
| 2041 |
var data = this.__data__, |
| 2042 |
index = assocIndexOf(data, key); |
| 2043 |
|
| 2044 |
if (index < 0) { |
| 2045 |
return false; |
| 2046 |
} |
| 2047 |
var lastIndex = data.length - 1; |
| 2048 |
if (index == lastIndex) { |
| 2049 |
data.pop(); |
| 2050 |
} else { |
| 2051 |
splice.call(data, index, 1); |
| 2052 |
} |
| 2053 |
--this.size; |
| 2054 |
return true; |
| 2055 |
} |
| 2056 |
|
| 2057 |
/** |
| 2058 |
* Gets the list cache value for `key`. |
| 2059 |
* |
| 2060 |
* @private |
| 2061 |
* @name get |
| 2062 |
* @memberOf ListCache |
| 2063 |
* @param {string} key The key of the value to get. |
| 2064 |
* @returns {*} Returns the entry value. |
| 2065 |
*/ |
| 2066 |
function listCacheGet(key) { |
| 2067 |
var data = this.__data__, |
| 2068 |
index = assocIndexOf(data, key); |
| 2069 |
|
| 2070 |
return index < 0 ? undefined : data[index][1]; |
| 2071 |
} |
| 2072 |
|
| 2073 |
/** |
| 2074 |
* Checks if a list cache value for `key` exists. |
| 2075 |
* |
| 2076 |
* @private |
| 2077 |
* @name has |
| 2078 |
* @memberOf ListCache |
| 2079 |
* @param {string} key The key of the entry to check. |
| 2080 |
* @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. |
| 2081 |
*/ |
| 2082 |
function listCacheHas(key) { |
| 2083 |
return assocIndexOf(this.__data__, key) > -1; |
| 2084 |
} |
| 2085 |
|
| 2086 |
/** |
| 2087 |
* Sets the list cache `key` to `value`. |
| 2088 |
* |
| 2089 |
* @private |
| 2090 |
* @name set |
| 2091 |
* @memberOf ListCache |
| 2092 |
* @param {string} key The key of the value to set. |
| 2093 |
* @param {*} value The value to set. |
| 2094 |
* @returns {Object} Returns the list cache instance. |
| 2095 |
*/ |
| 2096 |
function listCacheSet(key, value) { |
| 2097 |
var data = this.__data__, |
| 2098 |
index = assocIndexOf(data, key); |
| 2099 |
|
| 2100 |
if (index < 0) { |
| 2101 |
++this.size; |
| 2102 |
data.push([key, value]); |
| 2103 |
} else { |
| 2104 |
data[index][1] = value; |
| 2105 |
} |
| 2106 |
return this; |
| 2107 |
} |
| 2108 |
|
| 2109 |
// Add methods to `ListCache`. |
| 2110 |
ListCache.prototype.clear = listCacheClear; |
| 2111 |
ListCache.prototype['delete'] = listCacheDelete; |
| 2112 |
ListCache.prototype.get = listCacheGet; |
| 2113 |
ListCache.prototype.has = listCacheHas; |
| 2114 |
ListCache.prototype.set = listCacheSet; |
| 2115 |
|
| 2116 |
/*------------------------------------------------------------------------*/ |
| 2117 |
|
| 2118 |
/** |
| 2119 |
* Creates a map cache object to store key-value pairs. |
| 2120 |
* |
| 2121 |
* @private |
| 2122 |
* @constructor |
| 2123 |
* @param {Array} [entries] The key-value pairs to cache. |
| 2124 |
*/ |
| 2125 |
function MapCache(entries) { |
| 2126 |
var index = -1, |
| 2127 |
length = entries == null ? 0 : entries.length; |
| 2128 |
|
| 2129 |
this.clear(); |
| 2130 |
while (++index < length) { |
| 2131 |
var entry = entries[index]; |
| 2132 |
this.set(entry[0], entry[1]); |
| 2133 |
} |
| 2134 |
} |
| 2135 |
|
| 2136 |
/** |
| 2137 |
* Removes all key-value entries from the map. |
| 2138 |
* |
| 2139 |
* @private |
| 2140 |
* @name clear |
| 2141 |
* @memberOf MapCache |
| 2142 |
*/ |
| 2143 |
function mapCacheClear() { |
| 2144 |
this.size = 0; |
| 2145 |
this.__data__ = { |
| 2146 |
'hash': new Hash, |
| 2147 |
'map': new (Map || ListCache), |
| 2148 |
'string': new Hash |
| 2149 |
}; |
| 2150 |
} |
| 2151 |
|
| 2152 |
/** |
| 2153 |
* Removes `key` and its value from the map. |
| 2154 |
* |
| 2155 |
* @private |
| 2156 |
* @name delete |
| 2157 |
* @memberOf MapCache |
| 2158 |
* @param {string} key The key of the value to remove. |
| 2159 |
* @returns {boolean} Returns `true` if the entry was removed, else `false`. |
| 2160 |
*/ |
| 2161 |
function mapCacheDelete(key) { |
| 2162 |
var result = getMapData(this, key)['delete'](key); |
| 2163 |
this.size -= result ? 1 : 0; |
| 2164 |
return result; |
| 2165 |
} |
| 2166 |
|
| 2167 |
/** |
| 2168 |
* Gets the map value for `key`. |
| 2169 |
* |
| 2170 |
* @private |
| 2171 |
* @name get |
| 2172 |
* @memberOf MapCache |
| 2173 |
* @param {string} key The key of the value to get. |
| 2174 |
* @returns {*} Returns the entry value. |
| 2175 |
*/ |
| 2176 |
function mapCacheGet(key) { |
| 2177 |
return getMapData(this, key).get(key); |
| 2178 |
} |
| 2179 |
|
| 2180 |
/** |
| 2181 |
* Checks if a map value for `key` exists. |
| 2182 |
* |
| 2183 |
* @private |
| 2184 |
* @name has |
| 2185 |
* @memberOf MapCache |
| 2186 |
* @param {string} key The key of the entry to check. |
| 2187 |
* @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. |
| 2188 |
*/ |
| 2189 |
function mapCacheHas(key) { |
| 2190 |
return getMapData(this, key).has(key); |
| 2191 |
} |
| 2192 |
|
| 2193 |
/** |
| 2194 |
* Sets the map `key` to `value`. |
| 2195 |
* |
| 2196 |
* @private |
| 2197 |
* @name set |
| 2198 |
* @memberOf MapCache |
| 2199 |
* @param {string} key The key of the value to set. |
| 2200 |
* @param {*} value The value to set. |
| 2201 |
* @returns {Object} Returns the map cache instance. |
| 2202 |
*/ |
| 2203 |
function mapCacheSet(key, value) { |
| 2204 |
var data = getMapData(this, key), |
| 2205 |
size = data.size; |
| 2206 |
|
| 2207 |
data.set(key, value); |
| 2208 |
this.size += data.size == size ? 0 : 1; |
| 2209 |
return this; |
| 2210 |
} |
| 2211 |
|
| 2212 |
// Add methods to `MapCache`. |
| 2213 |
MapCache.prototype.clear = mapCacheClear; |
| 2214 |
MapCache.prototype['delete'] = mapCacheDelete; |
| 2215 |
MapCache.prototype.get = mapCacheGet; |
| 2216 |
MapCache.prototype.has = mapCacheHas; |
| 2217 |
MapCache.prototype.set = mapCacheSet; |
| 2218 |
|
| 2219 |
/*------------------------------------------------------------------------*/ |
| 2220 |
|
| 2221 |
/** |
| 2222 |
* |
| 2223 |
* Creates an array cache object to store unique values. |
| 2224 |
* |
| 2225 |
* @private |
| 2226 |
* @constructor |
| 2227 |
* @param {Array} [values] The values to cache. |
| 2228 |
*/ |
| 2229 |
function SetCache(values) { |
| 2230 |
var index = -1, |
| 2231 |
length = values == null ? 0 : values.length; |
| 2232 |
|
| 2233 |
this.__data__ = new MapCache; |
| 2234 |
while (++index < length) { |
| 2235 |
this.add(values[index]); |
| 2236 |
} |
| 2237 |
} |
| 2238 |
|
| 2239 |
/** |
| 2240 |
* Adds `value` to the array cache. |
| 2241 |
* |
| 2242 |
* @private |
| 2243 |
* @name add |
| 2244 |
* @memberOf SetCache |
| 2245 |
* @alias push |
| 2246 |
* @param {*} value The value to cache. |
| 2247 |
* @returns {Object} Returns the cache instance. |
| 2248 |
*/ |
| 2249 |
function setCacheAdd(value) { |
| 2250 |
this.__data__.set(value, HASH_UNDEFINED); |
| 2251 |
return this; |
| 2252 |
} |
| 2253 |
|
| 2254 |
/** |
| 2255 |
* Checks if `value` is in the array cache. |
| 2256 |
* |
| 2257 |
* @private |
| 2258 |
* @name has |
| 2259 |
* @memberOf SetCache |
| 2260 |
* @param {*} value The value to search for. |
| 2261 |
* @returns {number} Returns `true` if `value` is found, else `false`. |
| 2262 |
*/ |
| 2263 |
function setCacheHas(value) { |
| 2264 |
return this.__data__.has(value); |
| 2265 |
} |
| 2266 |
|
| 2267 |
// Add methods to `SetCache`. |
| 2268 |
SetCache.prototype.add = SetCache.prototype.push = setCacheAdd; |
| 2269 |
SetCache.prototype.has = setCacheHas; |
| 2270 |
|
| 2271 |
/*------------------------------------------------------------------------*/ |
| 2272 |
|
| 2273 |
/** |
| 2274 |
* Creates a stack cache object to store key-value pairs. |
| 2275 |
* |
| 2276 |
* @private |
| 2277 |
* @constructor |
| 2278 |
* @param {Array} [entries] The key-value pairs to cache. |
| 2279 |
*/ |
| 2280 |
function Stack(entries) { |
| 2281 |
var data = this.__data__ = new ListCache(entries); |
| 2282 |
this.size = data.size; |
| 2283 |
} |
| 2284 |
|
| 2285 |
/** |
| 2286 |
* Removes all key-value entries from the stack. |
| 2287 |
* |
| 2288 |
* @private |
| 2289 |
* @name clear |
| 2290 |
* @memberOf Stack |
| 2291 |
*/ |
| 2292 |
function stackClear() { |
| 2293 |
this.__data__ = new ListCache; |
| 2294 |
this.size = 0; |
| 2295 |
} |
| 2296 |
|
| 2297 |
/** |
| 2298 |
* Removes `key` and its value from the stack. |
| 2299 |
* |
| 2300 |
* @private |
| 2301 |
* @name delete |
| 2302 |
* @memberOf Stack |
| 2303 |
* @param {string} key The key of the value to remove. |
| 2304 |
* @returns {boolean} Returns `true` if the entry was removed, else `false`. |
| 2305 |
*/ |
| 2306 |
function stackDelete(key) { |
| 2307 |
var data = this.__data__, |
| 2308 |
result = data['delete'](key); |
| 2309 |
|
| 2310 |
this.size = data.size; |
| 2311 |
return result; |
| 2312 |
} |
| 2313 |
|
| 2314 |
/** |
| 2315 |
* Gets the stack value for `key`. |
| 2316 |
* |
| 2317 |
* @private |
| 2318 |
* @name get |
| 2319 |
* @memberOf Stack |
| 2320 |
* @param {string} key The key of the value to get. |
| 2321 |
* @returns {*} Returns the entry value. |
| 2322 |
*/ |
| 2323 |
function stackGet(key) { |
| 2324 |
return this.__data__.get(key); |
| 2325 |
} |
| 2326 |
|
| 2327 |
/** |
| 2328 |
* Checks if a stack value for `key` exists. |
| 2329 |
* |
| 2330 |
* @private |
| 2331 |
* @name has |
| 2332 |
* @memberOf Stack |
| 2333 |
* @param {string} key The key of the entry to check. |
| 2334 |
* @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. |
| 2335 |
*/ |
| 2336 |
function stackHas(key) { |
| 2337 |
return this.__data__.has(key); |
| 2338 |
} |
| 2339 |
|
| 2340 |
/** |
| 2341 |
* Sets the stack `key` to `value`. |
| 2342 |
* |
| 2343 |
* @private |
| 2344 |
* @name set |
| 2345 |
* @memberOf Stack |
| 2346 |
* @param {string} key The key of the value to set. |
| 2347 |
* @param {*} value The value to set. |
| 2348 |
* @returns {Object} Returns the stack cache instance. |
| 2349 |
*/ |
| 2350 |
function stackSet(key, value) { |
| 2351 |
var data = this.__data__; |
| 2352 |
if (data instanceof ListCache) { |
| 2353 |
var pairs = data.__data__; |
| 2354 |
if (!Map || (pairs.length < LARGE_ARRAY_SIZE - 1)) { |
| 2355 |
pairs.push([key, value]); |
| 2356 |
this.size = ++data.size; |
| 2357 |
return this; |
| 2358 |
} |
| 2359 |
data = this.__data__ = new MapCache(pairs); |
| 2360 |
} |
| 2361 |
data.set(key, value); |
| 2362 |
this.size = data.size; |
| 2363 |
return this; |
| 2364 |
} |
| 2365 |
|
| 2366 |
// Add methods to `Stack`. |
| 2367 |
Stack.prototype.clear = stackClear; |
| 2368 |
Stack.prototype['delete'] = stackDelete; |
| 2369 |
Stack.prototype.get = stackGet; |
| 2370 |
Stack.prototype.has = stackHas; |
| 2371 |
Stack.prototype.set = stackSet; |
| 2372 |
|
| 2373 |
/*------------------------------------------------------------------------*/ |
| 2374 |
|
| 2375 |
/** |
| 2376 |
* Creates an array of the enumerable property names of the array-like `value`. |
| 2377 |
* |
| 2378 |
* @private |
| 2379 |
* @param {*} value The value to query. |
| 2380 |
* @param {boolean} inherited Specify returning inherited property names. |
| 2381 |
* @returns {Array} Returns the array of property names. |
| 2382 |
*/ |
| 2383 |
function arrayLikeKeys(value, inherited) { |
| 2384 |
var isArr = isArray(value), |
| 2385 |
isArg = !isArr && isArguments(value), |
| 2386 |
isBuff = !isArr && !isArg && isBuffer(value), |
| 2387 |
isType = !isArr && !isArg && !isBuff && isTypedArray(value), |
| 2388 |
skipIndexes = isArr || isArg || isBuff || isType, |
| 2389 |
result = skipIndexes ? baseTimes(value.length, String) : [], |
| 2390 |
length = result.length; |
| 2391 |
|
| 2392 |
for (var key in value) { |
| 2393 |
if ((inherited || hasOwnProperty.call(value, key)) && |
| 2394 |
!(skipIndexes && ( |
| 2395 |
// Safari 9 has enumerable `arguments.length` in strict mode. |
| 2396 |
key == 'length' || |
| 2397 |
// Node.js 0.10 has enumerable non-index properties on buffers. |
| 2398 |
(isBuff && (key == 'offset' || key == 'parent')) || |
| 2399 |
// PhantomJS 2 has enumerable non-index properties on typed arrays. |
| 2400 |
(isType && (key == 'buffer' || key == 'byteLength' || key == 'byteOffset')) || |
| 2401 |
// Skip index properties. |
| 2402 |
isIndex(key, length) |
| 2403 |
))) { |
| 2404 |
result.push(key); |
| 2405 |
} |
| 2406 |
} |
| 2407 |
return result; |
| 2408 |
} |
| 2409 |
|
| 2410 |
/** |
| 2411 |
* A specialized version of `_.sample` for arrays. |
| 2412 |
* |
| 2413 |
* @private |
| 2414 |
* @param {Array} array The array to sample. |
| 2415 |
* @returns {*} Returns the random element. |
| 2416 |
*/ |
| 2417 |
function arraySample(array) { |
| 2418 |
var length = array.length; |
| 2419 |
return length ? array[baseRandom(0, length - 1)] : undefined; |
| 2420 |
} |
| 2421 |
|
| 2422 |
/** |
| 2423 |
* A specialized version of `_.sampleSize` for arrays. |
| 2424 |
* |
| 2425 |
* @private |
| 2426 |
* @param {Array} array The array to sample. |
| 2427 |
* @param {number} n The number of elements to sample. |
| 2428 |
* @returns {Array} Returns the random elements. |
| 2429 |
*/ |
| 2430 |
function arraySampleSize(array, n) { |
| 2431 |
return shuffleSelf(copyArray(array), baseClamp(n, 0, array.length)); |
| 2432 |
} |
| 2433 |
|
| 2434 |
/** |
| 2435 |
* A specialized version of `_.shuffle` for arrays. |
| 2436 |
* |
| 2437 |
* @private |
| 2438 |
* @param {Array} array The array to shuffle. |
| 2439 |
* @returns {Array} Returns the new shuffled array. |
| 2440 |
*/ |
| 2441 |
function arrayShuffle(array) { |
| 2442 |
return shuffleSelf(copyArray(array)); |
| 2443 |
} |
| 2444 |
|
| 2445 |
/** |
| 2446 |
* This function is like `assignValue` except that it doesn't assign |
| 2447 |
* `undefined` values. |
| 2448 |
* |
| 2449 |
* @private |
| 2450 |
* @param {Object} object The object to modify. |
| 2451 |
* @param {string} key The key of the property to assign. |
| 2452 |
* @param {*} value The value to assign. |
| 2453 |
*/ |
| 2454 |
function assignMergeValue(object, key, value) { |
| 2455 |
if ((value !== undefined && !eq(object[key], value)) || |
| 2456 |
(value === undefined && !(key in object))) { |
| 2457 |
baseAssignValue(object, key, value); |
| 2458 |
} |
| 2459 |
} |
| 2460 |
|
| 2461 |
/** |
| 2462 |
* Assigns `value` to `key` of `object` if the existing value is not equivalent |
| 2463 |
* using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) |
| 2464 |
* for equality comparisons. |
| 2465 |
* |
| 2466 |
* @private |
| 2467 |
* @param {Object} object The object to modify. |
| 2468 |
* @param {string} key The key of the property to assign. |
| 2469 |
* @param {*} value The value to assign. |
| 2470 |
*/ |
| 2471 |
function assignValue(object, key, value) { |
| 2472 |
var objValue = object[key]; |
| 2473 |
if (!(hasOwnProperty.call(object, key) && eq(objValue, value)) || |
| 2474 |
(value === undefined && !(key in object))) { |
| 2475 |
baseAssignValue(object, key, value); |
| 2476 |
} |
| 2477 |
} |
| 2478 |
|
| 2479 |
/** |
| 2480 |
* Gets the index at which the `key` is found in `array` of key-value pairs. |
| 2481 |
* |
| 2482 |
* @private |
| 2483 |
* @param {Array} array The array to inspect. |
| 2484 |
* @param {*} key The key to search for. |
| 2485 |
* @returns {number} Returns the index of the matched value, else `-1`. |
| 2486 |
*/ |
| 2487 |
function assocIndexOf(array, key) { |
| 2488 |
var length = array.length; |
| 2489 |
while (length--) { |
| 2490 |
if (eq(array[length][0], key)) { |
| 2491 |
return length; |
| 2492 |
} |
| 2493 |
} |
| 2494 |
return -1; |
| 2495 |
} |
| 2496 |
|
| 2497 |
/** |
| 2498 |
* Aggregates elements of `collection` on `accumulator` with keys transformed |
| 2499 |
* by `iteratee` and values set by `setter`. |
| 2500 |
* |
| 2501 |
* @private |
| 2502 |
* @param {Array|Object} collection The collection to iterate over. |
| 2503 |
* @param {Function} setter The function to set `accumulator` values. |
| 2504 |
* @param {Function} iteratee The iteratee to transform keys. |
| 2505 |
* @param {Object} accumulator The initial aggregated object. |
| 2506 |
* @returns {Function} Returns `accumulator`. |
| 2507 |
*/ |
| 2508 |
function baseAggregator(collection, setter, iteratee, accumulator) { |
| 2509 |
baseEach(collection, function(value, key, collection) { |
| 2510 |
setter(accumulator, value, iteratee(value), collection); |
| 2511 |
}); |
| 2512 |
return accumulator; |
| 2513 |
} |
| 2514 |
|
| 2515 |
/** |
| 2516 |
* The base implementation of `_.assign` without support for multiple sources |
| 2517 |
* or `customizer` functions. |
| 2518 |
* |
| 2519 |
* @private |
| 2520 |
* @param {Object} object The destination object. |
| 2521 |
* @param {Object} source The source object. |
| 2522 |
* @returns {Object} Returns `object`. |
| 2523 |
*/ |
| 2524 |
function baseAssign(object, source) { |
| 2525 |
return object && copyObject(source, keys(source), object); |
| 2526 |
} |
| 2527 |
|
| 2528 |
/** |
| 2529 |
* The base implementation of `_.assignIn` without support for multiple sources |
| 2530 |
* or `customizer` functions. |
| 2531 |
* |
| 2532 |
* @private |
| 2533 |
* @param {Object} object The destination object. |
| 2534 |
* @param {Object} source The source object. |
| 2535 |
* @returns {Object} Returns `object`. |
| 2536 |
*/ |
| 2537 |
function baseAssignIn(object, source) { |
| 2538 |
return object && copyObject(source, keysIn(source), object); |
| 2539 |
} |
| 2540 |
|
| 2541 |
/** |
| 2542 |
* The base implementation of `assignValue` and `assignMergeValue` without |
| 2543 |
* value checks. |
| 2544 |
* |
| 2545 |
* @private |
| 2546 |
* @param {Object} object The object to modify. |
| 2547 |
* @param {string} key The key of the property to assign. |
| 2548 |
* @param {*} value The value to assign. |
| 2549 |
*/ |
| 2550 |
function baseAssignValue(object, key, value) { |
| 2551 |
if (key == '__proto__' && defineProperty) { |
| 2552 |
defineProperty(object, key, { |
| 2553 |
'configurable': true, |
| 2554 |
'enumerable': true, |
| 2555 |
'value': value, |
| 2556 |
'writable': true |
| 2557 |
}); |
| 2558 |
} else { |
| 2559 |
object[key] = value; |
| 2560 |
} |
| 2561 |
} |
| 2562 |
|
| 2563 |
/** |
| 2564 |
* The base implementation of `_.at` without support for individual paths. |
| 2565 |
* |
| 2566 |
* @private |
| 2567 |
* @param {Object} object The object to iterate over. |
| 2568 |
* @param {string[]} paths The property paths to pick. |
| 2569 |
* @returns {Array} Returns the picked elements. |
| 2570 |
*/ |
| 2571 |
function baseAt(object, paths) { |
| 2572 |
var index = -1, |
| 2573 |
length = paths.length, |
| 2574 |
result = Array(length), |
| 2575 |
skip = object == null; |
| 2576 |
|
| 2577 |
while (++index < length) { |
| 2578 |
result[index] = skip ? undefined : get(object, paths[index]); |
| 2579 |
} |
| 2580 |
return result; |
| 2581 |
} |
| 2582 |
|
| 2583 |
/** |
| 2584 |
* The base implementation of `_.clamp` which doesn't coerce arguments. |
| 2585 |
* |
| 2586 |
* @private |
| 2587 |
* @param {number} number The number to clamp. |
| 2588 |
* @param {number} [lower] The lower bound. |
| 2589 |
* @param {number} upper The upper bound. |
| 2590 |
* @returns {number} Returns the clamped number. |
| 2591 |
*/ |
| 2592 |
function baseClamp(number, lower, upper) { |
| 2593 |
if (number === number) { |
| 2594 |
if (upper !== undefined) { |
| 2595 |
number = number <= upper ? number : upper; |
| 2596 |
} |
| 2597 |
if (lower !== undefined) { |
| 2598 |
number = number >= lower ? number : lower; |
| 2599 |
} |
| 2600 |
} |
| 2601 |
return number; |
| 2602 |
} |
| 2603 |
|
| 2604 |
/** |
| 2605 |
* The base implementation of `_.clone` and `_.cloneDeep` which tracks |
| 2606 |
* traversed objects. |
| 2607 |
* |
| 2608 |
* @private |
| 2609 |
* @param {*} value The value to clone. |
| 2610 |
* @param {boolean} bitmask The bitmask flags. |
| 2611 |
* 1 - Deep clone |
| 2612 |
* 2 - Flatten inherited properties |
| 2613 |
* 4 - Clone symbols |
| 2614 |
* @param {Function} [customizer] The function to customize cloning. |
| 2615 |
* @param {string} [key] The key of `value`. |
| 2616 |
* @param {Object} [object] The parent object of `value`. |
| 2617 |
* @param {Object} [stack] Tracks traversed objects and their clone counterparts. |
| 2618 |
* @returns {*} Returns the cloned value. |
| 2619 |
*/ |
| 2620 |
function baseClone(value, bitmask, customizer, key, object, stack) { |
| 2621 |
var result, |
| 2622 |
isDeep = bitmask & CLONE_DEEP_FLAG, |
| 2623 |
isFlat = bitmask & CLONE_FLAT_FLAG, |
| 2624 |
isFull = bitmask & CLONE_SYMBOLS_FLAG; |
| 2625 |
|
| 2626 |
if (customizer) { |
| 2627 |
result = object ? customizer(value, key, object, stack) : customizer(value); |
| 2628 |
} |
| 2629 |
if (result !== undefined) { |
| 2630 |
return result; |
| 2631 |
} |
| 2632 |
if (!isObject(value)) { |
| 2633 |
return value; |
| 2634 |
} |
| 2635 |
var isArr = isArray(value); |
| 2636 |
if (isArr) { |
| 2637 |
result = initCloneArray(value); |
| 2638 |
if (!isDeep) { |
| 2639 |
return copyArray(value, result); |
| 2640 |
} |
| 2641 |
} else { |
| 2642 |
var tag = getTag(value), |
| 2643 |
isFunc = tag == funcTag || tag == genTag; |
| 2644 |
|
| 2645 |
if (isBuffer(value)) { |
| 2646 |
return cloneBuffer(value, isDeep); |
| 2647 |
} |
| 2648 |
if (tag == objectTag || tag == argsTag || (isFunc && !object)) { |
| 2649 |
result = (isFlat || isFunc) ? {} : initCloneObject(value); |
| 2650 |
if (!isDeep) { |
| 2651 |
return isFlat |
| 2652 |
? copySymbolsIn(value, baseAssignIn(result, value)) |
| 2653 |
: copySymbols(value, baseAssign(result, value)); |
| 2654 |
} |
| 2655 |
} else { |
| 2656 |
if (!cloneableTags[tag]) { |
| 2657 |
return object ? value : {}; |
| 2658 |
} |
| 2659 |
result = initCloneByTag(value, tag, isDeep); |
| 2660 |
} |
| 2661 |
} |
| 2662 |
// Check for circular references and return its corresponding clone. |
| 2663 |
stack || (stack = new Stack); |
| 2664 |
var stacked = stack.get(value); |
| 2665 |
if (stacked) { |
| 2666 |
return stacked; |
| 2667 |
} |
| 2668 |
stack.set(value, result); |
| 2669 |
|
| 2670 |
if (isSet(value)) { |
| 2671 |
value.forEach(function(subValue) { |
| 2672 |
result.add(baseClone(subValue, bitmask, customizer, subValue, value, stack)); |
| 2673 |
}); |
| 2674 |
} else if (isMap(value)) { |
| 2675 |
value.forEach(function(subValue, key) { |
| 2676 |
result.set(key, baseClone(subValue, bitmask, customizer, key, value, stack)); |
| 2677 |
}); |
| 2678 |
} |
| 2679 |
|
| 2680 |
var keysFunc = isFull |
| 2681 |
? (isFlat ? getAllKeysIn : getAllKeys) |
| 2682 |
: (isFlat ? keysIn : keys); |
| 2683 |
|
| 2684 |
var props = isArr ? undefined : keysFunc(value); |
| 2685 |
arrayEach(props || value, function(subValue, key) { |
| 2686 |
if (props) { |
| 2687 |
key = subValue; |
| 2688 |
subValue = value[key]; |
| 2689 |
} |
| 2690 |
// Recursively populate clone (susceptible to call stack limits). |
| 2691 |
assignValue(result, key, baseClone(subValue, bitmask, customizer, key, value, stack)); |
| 2692 |
}); |
| 2693 |
return result; |
| 2694 |
} |
| 2695 |
|
| 2696 |
/** |
| 2697 |
* The base implementation of `_.conforms` which doesn't clone `source`. |
| 2698 |
* |
| 2699 |
* @private |
| 2700 |
* @param {Object} source The object of property predicates to conform to. |
| 2701 |
* @returns {Function} Returns the new spec function. |
| 2702 |
*/ |
| 2703 |
function baseConforms(source) { |
| 2704 |
var props = keys(source); |
| 2705 |
return function(object) { |
| 2706 |
return baseConformsTo(object, source, props); |
| 2707 |
}; |
| 2708 |
} |
| 2709 |
|
| 2710 |
/** |
| 2711 |
* The base implementation of `_.conformsTo` which accepts `props` to check. |
| 2712 |
* |
| 2713 |
* @private |
| 2714 |
* @param {Object} object The object to inspect. |
| 2715 |
* @param {Object} source The object of property predicates to conform to. |
| 2716 |
* @returns {boolean} Returns `true` if `object` conforms, else `false`. |
| 2717 |
*/ |
| 2718 |
function baseConformsTo(object, source, props) { |
| 2719 |
var length = props.length; |
| 2720 |
if (object == null) { |
| 2721 |
return !length; |
| 2722 |
} |
| 2723 |
object = Object(object); |
| 2724 |
while (length--) { |
| 2725 |
var key = props[length], |
| 2726 |
predicate = source[key], |
| 2727 |
value = object[key]; |
| 2728 |
|
| 2729 |
if ((value === undefined && !(key in object)) || !predicate(value)) { |
| 2730 |
return false; |
| 2731 |
} |
| 2732 |
} |
| 2733 |
return true; |
| 2734 |
} |
| 2735 |
|
| 2736 |
/** |
| 2737 |
* The base implementation of `_.delay` and `_.defer` which accepts `args` |
| 2738 |
* to provide to `func`. |
| 2739 |
* |
| 2740 |
* @private |
| 2741 |
* @param {Function} func The function to delay. |
| 2742 |
* @param {number} wait The number of milliseconds to delay invocation. |
| 2743 |
* @param {Array} args The arguments to provide to `func`. |
| 2744 |
* @returns {number|Object} Returns the timer id or timeout object. |
| 2745 |
*/ |
| 2746 |
function baseDelay(func, wait, args) { |
| 2747 |
if (typeof func != 'function') { |
| 2748 |
throw new TypeError(FUNC_ERROR_TEXT); |
| 2749 |
} |
| 2750 |
return setTimeout(function() { func.apply(undefined, args); }, wait); |
| 2751 |
} |
| 2752 |
|
| 2753 |
/** |
| 2754 |
* The base implementation of methods like `_.difference` without support |
| 2755 |
* for excluding multiple arrays or iteratee shorthands. |
| 2756 |
* |
| 2757 |
* @private |
| 2758 |
* @param {Array} array The array to inspect. |
| 2759 |
* @param {Array} values The values to exclude. |
| 2760 |
* @param {Function} [iteratee] The iteratee invoked per element. |
| 2761 |
* @param {Function} [comparator] The comparator invoked per element. |
| 2762 |
* @returns {Array} Returns the new array of filtered values. |
| 2763 |
*/ |
| 2764 |
function baseDifference(array, values, iteratee, comparator) { |
| 2765 |
var index = -1, |
| 2766 |
includes = arrayIncludes, |
| 2767 |
isCommon = true, |
| 2768 |
length = array.length, |
| 2769 |
result = [], |
| 2770 |
valuesLength = values.length; |
| 2771 |
|
| 2772 |
if (!length) { |
| 2773 |
return result; |
| 2774 |
} |
| 2775 |
if (iteratee) { |
| 2776 |
values = arrayMap(values, baseUnary(iteratee)); |
| 2777 |
} |
| 2778 |
if (comparator) { |
| 2779 |
includes = arrayIncludesWith; |
| 2780 |
isCommon = false; |
| 2781 |
} |
| 2782 |
else if (values.length >= LARGE_ARRAY_SIZE) { |
| 2783 |
includes = cacheHas; |
| 2784 |
isCommon = false; |
| 2785 |
values = new SetCache(values); |
| 2786 |
} |
| 2787 |
outer: |
| 2788 |
while (++index < length) { |
| 2789 |
var value = array[index], |
| 2790 |
computed = iteratee == null ? value : iteratee(value); |
| 2791 |
|
| 2792 |
value = (comparator || value !== 0) ? value : 0; |
| 2793 |
if (isCommon && computed === computed) { |
| 2794 |
var valuesIndex = valuesLength; |
| 2795 |
while (valuesIndex--) { |
| 2796 |
if (values[valuesIndex] === computed) { |
| 2797 |
continue outer; |
| 2798 |
} |
| 2799 |
} |
| 2800 |
result.push(value); |
| 2801 |
} |
| 2802 |
else if (!includes(values, computed, comparator)) { |
| 2803 |
result.push(value); |
| 2804 |
} |
| 2805 |
} |
| 2806 |
return result; |
| 2807 |
} |
| 2808 |
|
| 2809 |
/** |
| 2810 |
* The base implementation of `_.forEach` without support for iteratee shorthands. |
| 2811 |
* |
| 2812 |
* @private |
| 2813 |
* @param {Array|Object} collection The collection to iterate over. |
| 2814 |
* @param {Function} iteratee The function invoked per iteration. |
| 2815 |
* @returns {Array|Object} Returns `collection`. |
| 2816 |
*/ |
| 2817 |
var baseEach = createBaseEach(baseForOwn); |
| 2818 |
|
| 2819 |
/** |
| 2820 |
* The base implementation of `_.forEachRight` without support for iteratee shorthands. |
| 2821 |
* |
| 2822 |
* @private |
| 2823 |
* @param {Array|Object} collection The collection to iterate over. |
| 2824 |
* @param {Function} iteratee The function invoked per iteration. |
| 2825 |
* @returns {Array|Object} Returns `collection`. |
| 2826 |
*/ |
| 2827 |
var baseEachRight = createBaseEach(baseForOwnRight, true); |
| 2828 |
|
| 2829 |
/** |
| 2830 |
* The base implementation of `_.every` without support for iteratee shorthands. |
| 2831 |
* |
| 2832 |
* @private |
| 2833 |
* @param {Array|Object} collection The collection to iterate over. |
| 2834 |
* @param {Function} predicate The function invoked per iteration. |
| 2835 |
* @returns {boolean} Returns `true` if all elements pass the predicate check, |
| 2836 |
* else `false` |
| 2837 |
*/ |
| 2838 |
function baseEvery(collection, predicate) { |
| 2839 |
var result = true; |
| 2840 |
baseEach(collection, function(value, index, collection) { |
| 2841 |
result = !!predicate(value, index, collection); |
| 2842 |
return result; |
| 2843 |
}); |
| 2844 |
return result; |
| 2845 |
} |
| 2846 |
|
| 2847 |
/** |
| 2848 |
* The base implementation of methods like `_.max` and `_.min` which accepts a |
| 2849 |
* `comparator` to determine the extremum value. |
| 2850 |
* |
| 2851 |
* @private |
| 2852 |
* @param {Array} array The array to iterate over. |
| 2853 |
* @param {Function} iteratee The iteratee invoked per iteration. |
| 2854 |
* @param {Function} comparator The comparator used to compare values. |
| 2855 |
* @returns {*} Returns the extremum value. |
| 2856 |
*/ |
| 2857 |
function baseExtremum(array, iteratee, comparator) { |
| 2858 |
var index = -1, |
| 2859 |
length = array.length; |
| 2860 |
|
| 2861 |
while (++index < length) { |
| 2862 |
var value = array[index], |
| 2863 |
current = iteratee(value); |
| 2864 |
|
| 2865 |
if (current != null && (computed === undefined |
| 2866 |
? (current === current && !isSymbol(current)) |
| 2867 |
: comparator(current, computed) |
| 2868 |
)) { |
| 2869 |
var computed = current, |
| 2870 |
result = value; |
| 2871 |
} |
| 2872 |
} |
| 2873 |
return result; |
| 2874 |
} |
| 2875 |
|
| 2876 |
/** |
| 2877 |
* The base implementation of `_.fill` without an iteratee call guard. |
| 2878 |
* |
| 2879 |
* @private |
| 2880 |
* @param {Array} array The array to fill. |
| 2881 |
* @param {*} value The value to fill `array` with. |
| 2882 |
* @param {number} [start=0] The start position. |
| 2883 |
* @param {number} [end=array.length] The end position. |
| 2884 |
* @returns {Array} Returns `array`. |
| 2885 |
*/ |
| 2886 |
function baseFill(array, value, start, end) { |
| 2887 |
var length = array.length; |
| 2888 |
|
| 2889 |
start = toInteger(start); |
| 2890 |
if (start < 0) { |
| 2891 |
start = -start > length ? 0 : (length + start); |
| 2892 |
} |
| 2893 |
end = (end === undefined || end > length) ? length : toInteger(end); |
| 2894 |
if (end < 0) { |
| 2895 |
end += length; |
| 2896 |
} |
| 2897 |
end = start > end ? 0 : toLength(end); |
| 2898 |
while (start < end) { |
| 2899 |
array[start++] = value; |
| 2900 |
} |
| 2901 |
return array; |
| 2902 |
} |
| 2903 |
|
| 2904 |
/** |
| 2905 |
* The base implementation of `_.filter` without support for iteratee shorthands. |
| 2906 |
* |
| 2907 |
* @private |
| 2908 |
* @param {Array|Object} collection The collection to iterate over. |
| 2909 |
* @param {Function} predicate The function invoked per iteration. |
| 2910 |
* @returns {Array} Returns the new filtered array. |
| 2911 |
*/ |
| 2912 |
function baseFilter(collection, predicate) { |
| 2913 |
var result = []; |
| 2914 |
baseEach(collection, function(value, index, collection) { |
| 2915 |
if (predicate(value, index, collection)) { |
| 2916 |
result.push(value); |
| 2917 |
} |
| 2918 |
}); |
| 2919 |
return result; |
| 2920 |
} |
| 2921 |
|
| 2922 |
/** |
| 2923 |
* The base implementation of `_.flatten` with support for restricting flattening. |
| 2924 |
* |
| 2925 |
* @private |
| 2926 |
* @param {Array} array The array to flatten. |
| 2927 |
* @param {number} depth The maximum recursion depth. |
| 2928 |
* @param {boolean} [predicate=isFlattenable] The function invoked per iteration. |
| 2929 |
* @param {boolean} [isStrict] Restrict to values that pass `predicate` checks. |
| 2930 |
* @param {Array} [result=[]] The initial result value. |
| 2931 |
* @returns {Array} Returns the new flattened array. |
| 2932 |
*/ |
| 2933 |
function baseFlatten(array, depth, predicate, isStrict, result) { |
| 2934 |
var index = -1, |
| 2935 |
length = array.length; |
| 2936 |
|
| 2937 |
predicate || (predicate = isFlattenable); |
| 2938 |
result || (result = []); |
| 2939 |
|
| 2940 |
while (++index < length) { |
| 2941 |
var value = array[index]; |
| 2942 |
if (depth > 0 && predicate(value)) { |
| 2943 |
if (depth > 1) { |
| 2944 |
// Recursively flatten arrays (susceptible to call stack limits). |
| 2945 |
baseFlatten(value, depth - 1, predicate, isStrict, result); |
| 2946 |
} else { |
| 2947 |
arrayPush(result, value); |
| 2948 |
} |
| 2949 |
} else if (!isStrict) { |
| 2950 |
result[result.length] = value; |
| 2951 |
} |
| 2952 |
} |
| 2953 |
return result; |
| 2954 |
} |
| 2955 |
|
| 2956 |
/** |
| 2957 |
* The base implementation of `baseForOwn` which iterates over `object` |
| 2958 |
* properties returned by `keysFunc` and invokes `iteratee` for each property. |
| 2959 |
* Iteratee functions may exit iteration early by explicitly returning `false`. |
| 2960 |
* |
| 2961 |
* @private |
| 2962 |
* @param {Object} object The object to iterate over. |
| 2963 |
* @param {Function} iteratee The function invoked per iteration. |
| 2964 |
* @param {Function} keysFunc The function to get the keys of `object`. |
| 2965 |
* @returns {Object} Returns `object`. |
| 2966 |
*/ |
| 2967 |
var baseFor = createBaseFor(); |
| 2968 |
|
| 2969 |
/** |
| 2970 |
* This function is like `baseFor` except that it iterates over properties |
| 2971 |
* in the opposite order. |
| 2972 |
* |
| 2973 |
* @private |
| 2974 |
* @param {Object} object The object to iterate over. |
| 2975 |
* @param {Function} iteratee The function invoked per iteration. |
| 2976 |
* @param {Function} keysFunc The function to get the keys of `object`. |
| 2977 |
* @returns {Object} Returns `object`. |
| 2978 |
*/ |
| 2979 |
var baseForRight = createBaseFor(true); |
| 2980 |
|
| 2981 |
/** |
| 2982 |
* The base implementation of `_.forOwn` without support for iteratee shorthands. |
| 2983 |
* |
| 2984 |
* @private |
| 2985 |
* @param {Object} object The object to iterate over. |
| 2986 |
* @param {Function} iteratee The function invoked per iteration. |
| 2987 |
* @returns {Object} Returns `object`. |
| 2988 |
*/ |
| 2989 |
function baseForOwn(object, iteratee) { |
| 2990 |
return object && baseFor(object, iteratee, keys); |
| 2991 |
} |
| 2992 |
|
| 2993 |
/** |
| 2994 |
* The base implementation of `_.forOwnRight` without support for iteratee shorthands. |
| 2995 |
* |
| 2996 |
* @private |
| 2997 |
* @param {Object} object The object to iterate over. |
| 2998 |
* @param {Function} iteratee The function invoked per iteration. |
| 2999 |
* @returns {Object} Returns `object`. |
| 3000 |
*/ |
| 3001 |
function baseForOwnRight(object, iteratee) { |
| 3002 |
return object && baseForRight(object, iteratee, keys); |
| 3003 |
} |
| 3004 |
|
| 3005 |
/** |
| 3006 |
* The base implementation of `_.functions` which creates an array of |
| 3007 |
* `object` function property names filtered from `props`. |
| 3008 |
* |
| 3009 |
* @private |
| 3010 |
* @param {Object} object The object to inspect. |
| 3011 |
* @param {Array} props The property names to filter. |
| 3012 |
* @returns {Array} Returns the function names. |
| 3013 |
*/ |
| 3014 |
function baseFunctions(object, props) { |
| 3015 |
return arrayFilter(props, function(key) { |
| 3016 |
return isFunction(object[key]); |
| 3017 |
}); |
| 3018 |
} |
| 3019 |
|
| 3020 |
/** |
| 3021 |
* The base implementation of `_.get` without support for default values. |
| 3022 |
* |
| 3023 |
* @private |
| 3024 |
* @param {Object} object The object to query. |
| 3025 |
* @param {Array|string} path The path of the property to get. |
| 3026 |
* @returns {*} Returns the resolved value. |
| 3027 |
*/ |
| 3028 |
function baseGet(object, path) { |
| 3029 |
path = castPath(path, object); |
| 3030 |
|
| 3031 |
var index = 0, |
| 3032 |
length = path.length; |
| 3033 |
|
| 3034 |
while (object != null && index < length) { |
| 3035 |
object = object[toKey(path[index++])]; |
| 3036 |
} |
| 3037 |
return (index && index == length) ? object : undefined; |
| 3038 |
} |
| 3039 |
|
| 3040 |
/** |
| 3041 |
* The base implementation of `getAllKeys` and `getAllKeysIn` which uses |
| 3042 |
* `keysFunc` and `symbolsFunc` to get the enumerable property names and |
| 3043 |
* symbols of `object`. |
| 3044 |
* |
| 3045 |
* @private |
| 3046 |
* @param {Object} object The object to query. |
| 3047 |
* @param {Function} keysFunc The function to get the keys of `object`. |
| 3048 |
* @param {Function} symbolsFunc The function to get the symbols of `object`. |
| 3049 |
* @returns {Array} Returns the array of property names and symbols. |
| 3050 |
*/ |
| 3051 |
function baseGetAllKeys(object, keysFunc, symbolsFunc) { |
| 3052 |
var result = keysFunc(object); |
| 3053 |
return isArray(object) ? result : arrayPush(result, symbolsFunc(object)); |
| 3054 |
} |
| 3055 |
|
| 3056 |
/** |
| 3057 |
* The base implementation of `getTag` without fallbacks for buggy environments. |
| 3058 |
* |
| 3059 |
* @private |
| 3060 |
* @param {*} value The value to query. |
| 3061 |
* @returns {string} Returns the `toStringTag`. |
| 3062 |
*/ |
| 3063 |
function baseGetTag(value) { |
| 3064 |
if (value == null) { |
| 3065 |
return value === undefined ? undefinedTag : nullTag; |
| 3066 |
} |
| 3067 |
return (symToStringTag && symToStringTag in Object(value)) |
| 3068 |
? getRawTag(value) |
| 3069 |
: objectToString(value); |
| 3070 |
} |
| 3071 |
|
| 3072 |
/** |
| 3073 |
* The base implementation of `_.gt` which doesn't coerce arguments. |
| 3074 |
* |
| 3075 |
* @private |
| 3076 |
* @param {*} value The value to compare. |
| 3077 |
* @param {*} other The other value to compare. |
| 3078 |
* @returns {boolean} Returns `true` if `value` is greater than `other`, |
| 3079 |
* else `false`. |
| 3080 |
*/ |
| 3081 |
function baseGt(value, other) { |
| 3082 |
return value > other; |
| 3083 |
} |
| 3084 |
|
| 3085 |
/** |
| 3086 |
* The base implementation of `_.has` without support for deep paths. |
| 3087 |
* |
| 3088 |
* @private |
| 3089 |
* @param {Object} [object] The object to query. |
| 3090 |
* @param {Array|string} key The key to check. |
| 3091 |
* @returns {boolean} Returns `true` if `key` exists, else `false`. |
| 3092 |
*/ |
| 3093 |
function baseHas(object, key) { |
| 3094 |
return object != null && hasOwnProperty.call(object, key); |
| 3095 |
} |
| 3096 |
|
| 3097 |
/** |
| 3098 |
* The base implementation of `_.hasIn` without support for deep paths. |
| 3099 |
* |
| 3100 |
* @private |
| 3101 |
* @param {Object} [object] The object to query. |
| 3102 |
* @param {Array|string} key The key to check. |
| 3103 |
* @returns {boolean} Returns `true` if `key` exists, else `false`. |
| 3104 |
*/ |
| 3105 |
function baseHasIn(object, key) { |
| 3106 |
return object != null && key in Object(object); |
| 3107 |
} |
| 3108 |
|
| 3109 |
/** |
| 3110 |
* The base implementation of `_.inRange` which doesn't coerce arguments. |
| 3111 |
* |
| 3112 |
* @private |
| 3113 |
* @param {number} number The number to check. |
| 3114 |
* @param {number} start The start of the range. |
| 3115 |
* @param {number} end The end of the range. |
| 3116 |
* @returns {boolean} Returns `true` if `number` is in the range, else `false`. |
| 3117 |
*/ |
| 3118 |
function baseInRange(number, start, end) { |
| 3119 |
return number >= nativeMin(start, end) && number < nativeMax(start, end); |
| 3120 |
} |
| 3121 |
|
| 3122 |
/** |
| 3123 |
* The base implementation of methods like `_.intersection`, without support |
| 3124 |
* for iteratee shorthands, that accepts an array of arrays to inspect. |
| 3125 |
* |
| 3126 |
* @private |
| 3127 |
* @param {Array} arrays The arrays to inspect. |
| 3128 |
* @param {Function} [iteratee] The iteratee invoked per element. |
| 3129 |
* @param {Function} [comparator] The comparator invoked per element. |
| 3130 |
* @returns {Array} Returns the new array of shared values. |
| 3131 |
*/ |
| 3132 |
function baseIntersection(arrays, iteratee, comparator) { |
| 3133 |
var includes = comparator ? arrayIncludesWith : arrayIncludes, |
| 3134 |
length = arrays[0].length, |
| 3135 |
othLength = arrays.length, |
| 3136 |
othIndex = othLength, |
| 3137 |
caches = Array(othLength), |
| 3138 |
maxLength = Infinity, |
| 3139 |
result = []; |
| 3140 |
|
| 3141 |
while (othIndex--) { |
| 3142 |
var array = arrays[othIndex]; |
| 3143 |
if (othIndex && iteratee) { |
| 3144 |
array = arrayMap(array, baseUnary(iteratee)); |
| 3145 |
} |
| 3146 |
maxLength = nativeMin(array.length, maxLength); |
| 3147 |
caches[othIndex] = !comparator && (iteratee || (length >= 120 && array.length >= 120)) |
| 3148 |
? new SetCache(othIndex && array) |
| 3149 |
: undefined; |
| 3150 |
} |
| 3151 |
array = arrays[0]; |
| 3152 |
|
| 3153 |
var index = -1, |
| 3154 |
seen = caches[0]; |
| 3155 |
|
| 3156 |
outer: |
| 3157 |
while (++index < length && result.length < maxLength) { |
| 3158 |
var value = array[index], |
| 3159 |
computed = iteratee ? iteratee(value) : value; |
| 3160 |
|
| 3161 |
value = (comparator || value !== 0) ? value : 0; |
| 3162 |
if (!(seen |
| 3163 |
? cacheHas(seen, computed) |
| 3164 |
: includes(result, computed, comparator) |
| 3165 |
)) { |
| 3166 |
othIndex = othLength; |
| 3167 |
while (--othIndex) { |
| 3168 |
var cache = caches[othIndex]; |
| 3169 |
if (!(cache |
| 3170 |
? cacheHas(cache, computed) |
| 3171 |
: includes(arrays[othIndex], computed, comparator)) |
| 3172 |
) { |
| 3173 |
continue outer; |
| 3174 |
} |
| 3175 |
} |
| 3176 |
if (seen) { |
| 3177 |
seen.push(computed); |
| 3178 |
} |
| 3179 |
result.push(value); |
| 3180 |
} |
| 3181 |
} |
| 3182 |
return result; |
| 3183 |
} |
| 3184 |
|
| 3185 |
/** |
| 3186 |
* The base implementation of `_.invert` and `_.invertBy` which inverts |
| 3187 |
* `object` with values transformed by `iteratee` and set by `setter`. |
| 3188 |
* |
| 3189 |
* @private |
| 3190 |
* @param {Object} object The object to iterate over. |
| 3191 |
* @param {Function} setter The function to set `accumulator` values. |
| 3192 |
* @param {Function} iteratee The iteratee to transform values. |
| 3193 |
* @param {Object} accumulator The initial inverted object. |
| 3194 |
* @returns {Function} Returns `accumulator`. |
| 3195 |
*/ |
| 3196 |
function baseInverter(object, setter, iteratee, accumulator) { |
| 3197 |
baseForOwn(object, function(value, key, object) { |
| 3198 |
setter(accumulator, iteratee(value), key, object); |
| 3199 |
}); |
| 3200 |
return accumulator; |
| 3201 |
} |
| 3202 |
|
| 3203 |
/** |
| 3204 |
* The base implementation of `_.invoke` without support for individual |
| 3205 |
* method arguments. |
| 3206 |
* |
| 3207 |
* @private |
| 3208 |
* @param {Object} object The object to query. |
| 3209 |
* @param {Array|string} path The path of the method to invoke. |
| 3210 |
* @param {Array} args The arguments to invoke the method with. |
| 3211 |
* @returns {*} Returns the result of the invoked method. |
| 3212 |
*/ |
| 3213 |
function baseInvoke(object, path, args) { |
| 3214 |
path = castPath(path, object); |
| 3215 |
object = parent(object, path); |
| 3216 |
var func = object == null ? object : object[toKey(last(path))]; |
| 3217 |
return func == null ? undefined : apply(func, object, args); |
| 3218 |
} |
| 3219 |
|
| 3220 |
/** |
| 3221 |
* The base implementation of `_.isArguments`. |
| 3222 |
* |
| 3223 |
* @private |
| 3224 |
* @param {*} value The value to check. |
| 3225 |
* @returns {boolean} Returns `true` if `value` is an `arguments` object, |
| 3226 |
*/ |
| 3227 |
function baseIsArguments(value) { |
| 3228 |
return isObjectLike(value) && baseGetTag(value) == argsTag; |
| 3229 |
} |
| 3230 |
|
| 3231 |
/** |
| 3232 |
* The base implementation of `_.isArrayBuffer` without Node.js optimizations. |
| 3233 |
* |
| 3234 |
* @private |
| 3235 |
* @param {*} value The value to check. |
| 3236 |
* @returns {boolean} Returns `true` if `value` is an array buffer, else `false`. |
| 3237 |
*/ |
| 3238 |
function baseIsArrayBuffer(value) { |
| 3239 |
return isObjectLike(value) && baseGetTag(value) == arrayBufferTag; |
| 3240 |
} |
| 3241 |
|
| 3242 |
/** |
| 3243 |
* The base implementation of `_.isDate` without Node.js optimizations. |
| 3244 |
* |
| 3245 |
* @private |
| 3246 |
* @param {*} value The value to check. |
| 3247 |
* @returns {boolean} Returns `true` if `value` is a date object, else `false`. |
| 3248 |
*/ |
| 3249 |
function baseIsDate(value) { |
| 3250 |
return isObjectLike(value) && baseGetTag(value) == dateTag; |
| 3251 |
} |
| 3252 |
|
| 3253 |
/** |
| 3254 |
* The base implementation of `_.isEqual` which supports partial comparisons |
| 3255 |
* and tracks traversed objects. |
| 3256 |
* |
| 3257 |
* @private |
| 3258 |
* @param {*} value The value to compare. |
| 3259 |
* @param {*} other The other value to compare. |
| 3260 |
* @param {boolean} bitmask The bitmask flags. |
| 3261 |
* 1 - Unordered comparison |
| 3262 |
* 2 - Partial comparison |
| 3263 |
* @param {Function} [customizer] The function to customize comparisons. |
| 3264 |
* @param {Object} [stack] Tracks traversed `value` and `other` objects. |
| 3265 |
* @returns {boolean} Returns `true` if the values are equivalent, else `false`. |
| 3266 |
*/ |
| 3267 |
function baseIsEqual(value, other, bitmask, customizer, stack) { |
| 3268 |
if (value === other) { |
| 3269 |
return true; |
| 3270 |
} |
| 3271 |
if (value == null || other == null || (!isObjectLike(value) && !isObjectLike(other))) { |
| 3272 |
return value !== value && other !== other; |
| 3273 |
} |
| 3274 |
return baseIsEqualDeep(value, other, bitmask, customizer, baseIsEqual, stack); |
| 3275 |
} |
| 3276 |
|
| 3277 |
/** |
| 3278 |
* A specialized version of `baseIsEqual` for arrays and objects which performs |
| 3279 |
* deep comparisons and tracks traversed objects enabling objects with circular |
| 3280 |
* references to be compared. |
| 3281 |
* |
| 3282 |
* @private |
| 3283 |
* @param {Object} object The object to compare. |
| 3284 |
* @param {Object} other The other object to compare. |
| 3285 |
* @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details. |
| 3286 |
* @param {Function} customizer The function to customize comparisons. |
| 3287 |
* @param {Function} equalFunc The function to determine equivalents of values. |
| 3288 |
* @param {Object} [stack] Tracks traversed `object` and `other` objects. |
| 3289 |
* @returns {boolean} Returns `true` if the objects are equivalent, else `false`. |
| 3290 |
*/ |
| 3291 |
function baseIsEqualDeep(object, other, bitmask, customizer, equalFunc, stack) { |
| 3292 |
var objIsArr = isArray(object), |
| 3293 |
othIsArr = isArray(other), |
| 3294 |
objTag = objIsArr ? arrayTag : getTag(object), |
| 3295 |
othTag = othIsArr ? arrayTag : getTag(other); |
| 3296 |
|
| 3297 |
objTag = objTag == argsTag ? objectTag : objTag; |
| 3298 |
othTag = othTag == argsTag ? objectTag : othTag; |
| 3299 |
|
| 3300 |
var objIsObj = objTag == objectTag, |
| 3301 |
othIsObj = othTag == objectTag, |
| 3302 |
isSameTag = objTag == othTag; |
| 3303 |
|
| 3304 |
if (isSameTag && isBuffer(object)) { |
| 3305 |
if (!isBuffer(other)) { |
| 3306 |
return false; |
| 3307 |
} |
| 3308 |
objIsArr = true; |
| 3309 |
objIsObj = false; |
| 3310 |
} |
| 3311 |
if (isSameTag && !objIsObj) { |
| 3312 |
stack || (stack = new Stack); |
| 3313 |
return (objIsArr || isTypedArray(object)) |
| 3314 |
? equalArrays(object, other, bitmask, customizer, equalFunc, stack) |
| 3315 |
: equalByTag(object, other, objTag, bitmask, customizer, equalFunc, stack); |
| 3316 |
} |
| 3317 |
if (!(bitmask & COMPARE_PARTIAL_FLAG)) { |
| 3318 |
var objIsWrapped = objIsObj && hasOwnProperty.call(object, '__wrapped__'), |
| 3319 |
othIsWrapped = othIsObj && hasOwnProperty.call(other, '__wrapped__'); |
| 3320 |
|
| 3321 |
if (objIsWrapped || othIsWrapped) { |
| 3322 |
var objUnwrapped = objIsWrapped ? object.value() : object, |
| 3323 |
othUnwrapped = othIsWrapped ? other.value() : other; |
| 3324 |
|
| 3325 |
stack || (stack = new Stack); |
| 3326 |
return equalFunc(objUnwrapped, othUnwrapped, bitmask, customizer, stack); |
| 3327 |
} |
| 3328 |
} |
| 3329 |
if (!isSameTag) { |
| 3330 |
return false; |
| 3331 |
} |
| 3332 |
stack || (stack = new Stack); |
| 3333 |
return equalObjects(object, other, bitmask, customizer, equalFunc, stack); |
| 3334 |
} |
| 3335 |
|
| 3336 |
/** |
| 3337 |
* The base implementation of `_.isMap` without Node.js optimizations. |
| 3338 |
* |
| 3339 |
* @private |
| 3340 |
* @param {*} value The value to check. |
| 3341 |
* @returns {boolean} Returns `true` if `value` is a map, else `false`. |
| 3342 |
*/ |
| 3343 |
function baseIsMap(value) { |
| 3344 |
return isObjectLike(value) && getTag(value) == mapTag; |
| 3345 |
} |
| 3346 |
|
| 3347 |
/** |
| 3348 |
* The base implementation of `_.isMatch` without support for iteratee shorthands. |
| 3349 |
* |
| 3350 |
* @private |
| 3351 |
* @param {Object} object The object to inspect. |
| 3352 |
* @param {Object} source The object of property values to match. |
| 3353 |
* @param {Array} matchData The property names, values, and compare flags to match. |
| 3354 |
* @param {Function} [customizer] The function to customize comparisons. |
| 3355 |
* @returns {boolean} Returns `true` if `object` is a match, else `false`. |
| 3356 |
*/ |
| 3357 |
function baseIsMatch(object, source, matchData, customizer) { |
| 3358 |
var index = matchData.length, |
| 3359 |
length = index, |
| 3360 |
noCustomizer = !customizer; |
| 3361 |
|
| 3362 |
if (object == null) { |
| 3363 |
return !length; |
| 3364 |
} |
| 3365 |
object = Object(object); |
| 3366 |
while (index--) { |
| 3367 |
var data = matchData[index]; |
| 3368 |
if ((noCustomizer && data[2]) |
| 3369 |
? data[1] !== object[data[0]] |
| 3370 |
: !(data[0] in object) |
| 3371 |
) { |
| 3372 |
return false; |
| 3373 |
} |
| 3374 |
} |
| 3375 |
while (++index < length) { |
| 3376 |
data = matchData[index]; |
| 3377 |
var key = data[0], |
| 3378 |
objValue = object[key], |
| 3379 |
srcValue = data[1]; |
| 3380 |
|
| 3381 |
if (noCustomizer && data[2]) { |
| 3382 |
if (objValue === undefined && !(key in object)) { |
| 3383 |
return false; |
| 3384 |
} |
| 3385 |
} else { |
| 3386 |
var stack = new Stack; |
| 3387 |
if (customizer) { |
| 3388 |
var result = customizer(objValue, srcValue, key, object, source, stack); |
| 3389 |
} |
| 3390 |
if (!(result === undefined |
| 3391 |
? baseIsEqual(srcValue, objValue, COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG, customizer, stack) |
| 3392 |
: result |
| 3393 |
)) { |
| 3394 |
return false; |
| 3395 |
} |
| 3396 |
} |
| 3397 |
} |
| 3398 |
return true; |
| 3399 |
} |
| 3400 |
|
| 3401 |
/** |
| 3402 |
* The base implementation of `_.isNative` without bad shim checks. |
| 3403 |
* |
| 3404 |
* @private |
| 3405 |
* @param {*} value The value to check. |
| 3406 |
* @returns {boolean} Returns `true` if `value` is a native function, |
| 3407 |
* else `false`. |
| 3408 |
*/ |
| 3409 |
function baseIsNative(value) { |
| 3410 |
if (!isObject(value) || isMasked(value)) { |
| 3411 |
return false; |
| 3412 |
} |
| 3413 |
var pattern = isFunction(value) ? reIsNative : reIsHostCtor; |
| 3414 |
return pattern.test(toSource(value)); |
| 3415 |
} |
| 3416 |
|
| 3417 |
/** |
| 3418 |
* The base implementation of `_.isRegExp` without Node.js optimizations. |
| 3419 |
* |
| 3420 |
* @private |
| 3421 |
* @param {*} value The value to check. |
| 3422 |
* @returns {boolean} Returns `true` if `value` is a regexp, else `false`. |
| 3423 |
*/ |
| 3424 |
function baseIsRegExp(value) { |
| 3425 |
return isObjectLike(value) && baseGetTag(value) == regexpTag; |
| 3426 |
} |
| 3427 |
|
| 3428 |
/** |
| 3429 |
* The base implementation of `_.isSet` without Node.js optimizations. |
| 3430 |
* |
| 3431 |
* @private |
| 3432 |
* @param {*} value The value to check. |
| 3433 |
* @returns {boolean} Returns `true` if `value` is a set, else `false`. |
| 3434 |
*/ |
| 3435 |
function baseIsSet(value) { |
| 3436 |
return isObjectLike(value) && getTag(value) == setTag; |
| 3437 |
} |
| 3438 |
|
| 3439 |
/** |
| 3440 |
* The base implementation of `_.isTypedArray` without Node.js optimizations. |
| 3441 |
* |
| 3442 |
* @private |
| 3443 |
* @param {*} value The value to check. |
| 3444 |
* @returns {boolean} Returns `true` if `value` is a typed array, else `false`. |
| 3445 |
*/ |
| 3446 |
function baseIsTypedArray(value) { |
| 3447 |
return isObjectLike(value) && |
| 3448 |
isLength(value.length) && !!typedArrayTags[baseGetTag(value)]; |
| 3449 |
} |
| 3450 |
|
| 3451 |
/** |
| 3452 |
* The base implementation of `_.iteratee`. |
| 3453 |
* |
| 3454 |
* @private |
| 3455 |
* @param {*} [value=_.identity] The value to convert to an iteratee. |
| 3456 |
* @returns {Function} Returns the iteratee. |
| 3457 |
*/ |
| 3458 |
function baseIteratee(value) { |
| 3459 |
// Don't store the `typeof` result in a variable to avoid a JIT bug in Safari 9. |
| 3460 |
// See https://bugs.webkit.org/show_bug.cgi?id=156034 for more details. |
| 3461 |
if (typeof value == 'function') { |
| 3462 |
return value; |
| 3463 |
} |
| 3464 |
if (value == null) { |
| 3465 |
return identity; |
| 3466 |
} |
| 3467 |
if (typeof value == 'object') { |
| 3468 |
return isArray(value) |
| 3469 |
? baseMatchesProperty(value[0], value[1]) |
| 3470 |
: baseMatches(value); |
| 3471 |
} |
| 3472 |
return property(value); |
| 3473 |
} |
| 3474 |
|
| 3475 |
/** |
| 3476 |
* The base implementation of `_.keys` which doesn't treat sparse arrays as dense. |
| 3477 |
* |
| 3478 |
* @private |
| 3479 |
* @param {Object} object The object to query. |
| 3480 |
* @returns {Array} Returns the array of property names. |
| 3481 |
*/ |
| 3482 |
function baseKeys(object) { |
| 3483 |
if (!isPrototype(object)) { |
| 3484 |
return nativeKeys(object); |
| 3485 |
} |
| 3486 |
var result = []; |
| 3487 |
for (var key in Object(object)) { |
| 3488 |
if (hasOwnProperty.call(object, key) && key != 'constructor') { |
| 3489 |
result.push(key); |
| 3490 |
} |
| 3491 |
} |
| 3492 |
return result; |
| 3493 |
} |
| 3494 |
|
| 3495 |
/** |
| 3496 |
* The base implementation of `_.keysIn` which doesn't treat sparse arrays as dense. |
| 3497 |
* |
| 3498 |
* @private |
| 3499 |
* @param {Object} object The object to query. |
| 3500 |
* @returns {Array} Returns the array of property names. |
| 3501 |
*/ |
| 3502 |
function baseKeysIn(object) { |
| 3503 |
if (!isObject(object)) { |
| 3504 |
return nativeKeysIn(object); |
| 3505 |
} |
| 3506 |
var isProto = isPrototype(object), |
| 3507 |
result = []; |
| 3508 |
|
| 3509 |
for (var key in object) { |
| 3510 |
if (!(key == 'constructor' && (isProto || !hasOwnProperty.call(object, key)))) { |
| 3511 |
result.push(key); |
| 3512 |
} |
| 3513 |
} |
| 3514 |
return result; |
| 3515 |
} |
| 3516 |
|
| 3517 |
/** |
| 3518 |
* The base implementation of `_.lt` which doesn't coerce arguments. |
| 3519 |
* |
| 3520 |
* @private |
| 3521 |
* @param {*} value The value to compare. |
| 3522 |
* @param {*} other The other value to compare. |
| 3523 |
* @returns {boolean} Returns `true` if `value` is less than `other`, |
| 3524 |
* else `false`. |
| 3525 |
*/ |
| 3526 |
function baseLt(value, other) { |
| 3527 |
return value < other; |
| 3528 |
} |
| 3529 |
|
| 3530 |
/** |
| 3531 |
* The base implementation of `_.map` without support for iteratee shorthands. |
| 3532 |
* |
| 3533 |
* @private |
| 3534 |
* @param {Array|Object} collection The collection to iterate over. |
| 3535 |
* @param {Function} iteratee The function invoked per iteration. |
| 3536 |
* @returns {Array} Returns the new mapped array. |
| 3537 |
*/ |
| 3538 |
function baseMap(collection, iteratee) { |
| 3539 |
var index = -1, |
| 3540 |
result = isArrayLike(collection) ? Array(collection.length) : []; |
| 3541 |
|
| 3542 |
baseEach(collection, function(value, key, collection) { |
| 3543 |
result[++index] = iteratee(value, key, collection); |
| 3544 |
}); |
| 3545 |
return result; |
| 3546 |
} |
| 3547 |
|
| 3548 |
/** |
| 3549 |
* The base implementation of `_.matches` which doesn't clone `source`. |
| 3550 |
* |
| 3551 |
* @private |
| 3552 |
* @param {Object} source The object of property values to match. |
| 3553 |
* @returns {Function} Returns the new spec function. |
| 3554 |
*/ |
| 3555 |
function baseMatches(source) { |
| 3556 |
var matchData = getMatchData(source); |
| 3557 |
if (matchData.length == 1 && matchData[0][2]) { |
| 3558 |
return matchesStrictComparable(matchData[0][0], matchData[0][1]); |
| 3559 |
} |
| 3560 |
return function(object) { |
| 3561 |
return object === source || baseIsMatch(object, source, matchData); |
| 3562 |
}; |
| 3563 |
} |
| 3564 |
|
| 3565 |
/** |
| 3566 |
* The base implementation of `_.matchesProperty` which doesn't clone `srcValue`. |
| 3567 |
* |
| 3568 |
* @private |
| 3569 |
* @param {string} path The path of the property to get. |
| 3570 |
* @param {*} srcValue The value to match. |
| 3571 |
* @returns {Function} Returns the new spec function. |
| 3572 |
*/ |
| 3573 |
function baseMatchesProperty(path, srcValue) { |
| 3574 |
if (isKey(path) && isStrictComparable(srcValue)) { |
| 3575 |
return matchesStrictComparable(toKey(path), srcValue); |
| 3576 |
} |
| 3577 |
return function(object) { |
| 3578 |
var objValue = get(object, path); |
| 3579 |
return (objValue === undefined && objValue === srcValue) |
| 3580 |
? hasIn(object, path) |
| 3581 |
: baseIsEqual(srcValue, objValue, COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG); |
| 3582 |
}; |
| 3583 |
} |
| 3584 |
|
| 3585 |
/** |
| 3586 |
* The base implementation of `_.merge` without support for multiple sources. |
| 3587 |
* |
| 3588 |
* @private |
| 3589 |
* @param {Object} object The destination object. |
| 3590 |
* @param {Object} source The source object. |
| 3591 |
* @param {number} srcIndex The index of `source`. |
| 3592 |
* @param {Function} [customizer] The function to customize merged values. |
| 3593 |
* @param {Object} [stack] Tracks traversed source values and their merged |
| 3594 |
* counterparts. |
| 3595 |
*/ |
| 3596 |
function baseMerge(object, source, srcIndex, customizer, stack) { |
| 3597 |
if (object === source) { |
| 3598 |
return; |
| 3599 |
} |
| 3600 |
baseFor(source, function(srcValue, key) { |
| 3601 |
stack || (stack = new Stack); |
| 3602 |
if (isObject(srcValue)) { |
| 3603 |
baseMergeDeep(object, source, key, srcIndex, baseMerge, customizer, stack); |
| 3604 |
} |
| 3605 |
else { |
| 3606 |
var newValue = customizer |
| 3607 |
? customizer(safeGet(object, key), srcValue, (key + ''), object, source, stack) |
| 3608 |
: undefined; |
| 3609 |
|
| 3610 |
if (newValue === undefined) { |
| 3611 |
newValue = srcValue; |
| 3612 |
} |
| 3613 |
assignMergeValue(object, key, newValue); |
| 3614 |
} |
| 3615 |
}, keysIn); |
| 3616 |
} |
| 3617 |
|
| 3618 |
/** |
| 3619 |
* A specialized version of `baseMerge` for arrays and objects which performs |
| 3620 |
* deep merges and tracks traversed objects enabling objects with circular |
| 3621 |
* references to be merged. |
| 3622 |
* |
| 3623 |
* @private |
| 3624 |
* @param {Object} object The destination object. |
| 3625 |
* @param {Object} source The source object. |
| 3626 |
* @param {string} key The key of the value to merge. |
| 3627 |
* @param {number} srcIndex The index of `source`. |
| 3628 |
* @param {Function} mergeFunc The function to merge values. |
| 3629 |
* @param {Function} [customizer] The function to customize assigned values. |
| 3630 |
* @param {Object} [stack] Tracks traversed source values and their merged |
| 3631 |
* counterparts. |
| 3632 |
*/ |
| 3633 |
function baseMergeDeep(object, source, key, srcIndex, mergeFunc, customizer, stack) { |
| 3634 |
var objValue = safeGet(object, key), |
| 3635 |
srcValue = safeGet(source, key), |
| 3636 |
stacked = stack.get(srcValue); |
| 3637 |
|
| 3638 |
if (stacked) { |
| 3639 |
assignMergeValue(object, key, stacked); |
| 3640 |
return; |
| 3641 |
} |
| 3642 |
var newValue = customizer |
| 3643 |
? customizer(objValue, srcValue, (key + ''), object, source, stack) |
| 3644 |
: undefined; |
| 3645 |
|
| 3646 |
var isCommon = newValue === undefined; |
| 3647 |
|
| 3648 |
if (isCommon) { |
| 3649 |
var isArr = isArray(srcValue), |
| 3650 |
isBuff = !isArr && isBuffer(srcValue), |
| 3651 |
isTyped = !isArr && !isBuff && isTypedArray(srcValue); |
| 3652 |
|
| 3653 |
newValue = srcValue; |
| 3654 |
if (isArr || isBuff || isTyped) { |
| 3655 |
if (isArray(objValue)) { |
| 3656 |
newValue = objValue; |
| 3657 |
} |
| 3658 |
else if (isArrayLikeObject(objValue)) { |
| 3659 |
newValue = copyArray(objValue); |
| 3660 |
} |
| 3661 |
else if (isBuff) { |
| 3662 |
isCommon = false; |
| 3663 |
newValue = cloneBuffer(srcValue, true); |
| 3664 |
} |
| 3665 |
else if (isTyped) { |
| 3666 |
isCommon = false; |
| 3667 |
newValue = cloneTypedArray(srcValue, true); |
| 3668 |
} |
| 3669 |
else { |
| 3670 |
newValue = []; |
| 3671 |
} |
| 3672 |
} |
| 3673 |
else if (isPlainObject(srcValue) || isArguments(srcValue)) { |
| 3674 |
newValue = objValue; |
| 3675 |
if (isArguments(objValue)) { |
| 3676 |
newValue = toPlainObject(objValue); |
| 3677 |
} |
| 3678 |
else if (!isObject(objValue) || isFunction(objValue)) { |
| 3679 |
newValue = initCloneObject(srcValue); |
| 3680 |
} |
| 3681 |
} |
| 3682 |
else { |
| 3683 |
isCommon = false; |
| 3684 |
} |
| 3685 |
} |
| 3686 |
if (isCommon) { |
| 3687 |
// Recursively merge objects and arrays (susceptible to call stack limits). |
| 3688 |
stack.set(srcValue, newValue); |
| 3689 |
mergeFunc(newValue, srcValue, srcIndex, customizer, stack); |
| 3690 |
stack['delete'](srcValue); |
| 3691 |
} |
| 3692 |
assignMergeValue(object, key, newValue); |
| 3693 |
} |
| 3694 |
|
| 3695 |
/** |
| 3696 |
* The base implementation of `_.nth` which doesn't coerce arguments. |
| 3697 |
* |
| 3698 |
* @private |
| 3699 |
* @param {Array} array The array to query. |
| 3700 |
* @param {number} n The index of the element to return. |
| 3701 |
* @returns {*} Returns the nth element of `array`. |
| 3702 |
*/ |
| 3703 |
function baseNth(array, n) { |
| 3704 |
var length = array.length; |
| 3705 |
if (!length) { |
| 3706 |
return; |
| 3707 |
} |
| 3708 |
n += n < 0 ? length : 0; |
| 3709 |
return isIndex(n, length) ? array[n] : undefined; |
| 3710 |
} |
| 3711 |
|
| 3712 |
/** |
| 3713 |
* The base implementation of `_.orderBy` without param guards. |
| 3714 |
* |
| 3715 |
* @private |
| 3716 |
* @param {Array|Object} collection The collection to iterate over. |
| 3717 |
* @param {Function[]|Object[]|string[]} iteratees The iteratees to sort by. |
| 3718 |
* @param {string[]} orders The sort orders of `iteratees`. |
| 3719 |
* @returns {Array} Returns the new sorted array. |
| 3720 |
*/ |
| 3721 |
function baseOrderBy(collection, iteratees, orders) { |
| 3722 |
if (iteratees.length) { |
| 3723 |
iteratees = arrayMap(iteratees, function(iteratee) { |
| 3724 |
if (isArray(iteratee)) { |
| 3725 |
return function(value) { |
| 3726 |
return baseGet(value, iteratee.length === 1 ? iteratee[0] : iteratee); |
| 3727 |
} |
| 3728 |
} |
| 3729 |
return iteratee; |
| 3730 |
}); |
| 3731 |
} else { |
| 3732 |
iteratees = [identity]; |
| 3733 |
} |
| 3734 |
|
| 3735 |
var index = -1; |
| 3736 |
iteratees = arrayMap(iteratees, baseUnary(getIteratee())); |
| 3737 |
|
| 3738 |
var result = baseMap(collection, function(value, key, collection) { |
| 3739 |
var criteria = arrayMap(iteratees, function(iteratee) { |
| 3740 |
return iteratee(value); |
| 3741 |
}); |
| 3742 |
return { 'criteria': criteria, 'index': ++index, 'value': value }; |
| 3743 |
}); |
| 3744 |
|
| 3745 |
return baseSortBy(result, function(object, other) { |
| 3746 |
return compareMultiple(object, other, orders); |
| 3747 |
}); |
| 3748 |
} |
| 3749 |
|
| 3750 |
/** |
| 3751 |
* The base implementation of `_.pick` without support for individual |
| 3752 |
* property identifiers. |
| 3753 |
* |
| 3754 |
* @private |
| 3755 |
* @param {Object} object The source object. |
| 3756 |
* @param {string[]} paths The property paths to pick. |
| 3757 |
* @returns {Object} Returns the new object. |
| 3758 |
*/ |
| 3759 |
function basePick(object, paths) { |
| 3760 |
return basePickBy(object, paths, function(value, path) { |
| 3761 |
return hasIn(object, path); |
| 3762 |
}); |
| 3763 |
} |
| 3764 |
|
| 3765 |
/** |
| 3766 |
* The base implementation of `_.pickBy` without support for iteratee shorthands. |
| 3767 |
* |
| 3768 |
* @private |
| 3769 |
* @param {Object} object The source object. |
| 3770 |
* @param {string[]} paths The property paths to pick. |
| 3771 |
* @param {Function} predicate The function invoked per property. |
| 3772 |
* @returns {Object} Returns the new object. |
| 3773 |
*/ |
| 3774 |
function basePickBy(object, paths, predicate) { |
| 3775 |
var index = -1, |
| 3776 |
length = paths.length, |
| 3777 |
result = {}; |
| 3778 |
|
| 3779 |
while (++index < length) { |
| 3780 |
var path = paths[index], |
| 3781 |
value = baseGet(object, path); |
| 3782 |
|
| 3783 |
if (predicate(value, path)) { |
| 3784 |
baseSet(result, castPath(path, object), value); |
| 3785 |
} |
| 3786 |
} |
| 3787 |
return result; |
| 3788 |
} |
| 3789 |
|
| 3790 |
/** |
| 3791 |
* A specialized version of `baseProperty` which supports deep paths. |
| 3792 |
* |
| 3793 |
* @private |
| 3794 |
* @param {Array|string} path The path of the property to get. |
| 3795 |
* @returns {Function} Returns the new accessor function. |
| 3796 |
*/ |
| 3797 |
function basePropertyDeep(path) { |
| 3798 |
return function(object) { |
| 3799 |
return baseGet(object, path); |
| 3800 |
}; |
| 3801 |
} |
| 3802 |
|
| 3803 |
/** |
| 3804 |
* The base implementation of `_.pullAllBy` without support for iteratee |
| 3805 |
* shorthands. |
| 3806 |
* |
| 3807 |
* @private |
| 3808 |
* @param {Array} array The array to modify. |
| 3809 |
* @param {Array} values The values to remove. |
| 3810 |
* @param {Function} [iteratee] The iteratee invoked per element. |
| 3811 |
* @param {Function} [comparator] The comparator invoked per element. |
| 3812 |
* @returns {Array} Returns `array`. |
| 3813 |
*/ |
| 3814 |
function basePullAll(array, values, iteratee, comparator) { |
| 3815 |
var indexOf = comparator ? baseIndexOfWith : baseIndexOf, |
| 3816 |
index = -1, |
| 3817 |
length = values.length, |
| 3818 |
seen = array; |
| 3819 |
|
| 3820 |
if (array === values) { |
| 3821 |
values = copyArray(values); |
| 3822 |
} |
| 3823 |
if (iteratee) { |
| 3824 |
seen = arrayMap(array, baseUnary(iteratee)); |
| 3825 |
} |
| 3826 |
while (++index < length) { |
| 3827 |
var fromIndex = 0, |
| 3828 |
value = values[index], |
| 3829 |
computed = iteratee ? iteratee(value) : value; |
| 3830 |
|
| 3831 |
while ((fromIndex = indexOf(seen, computed, fromIndex, comparator)) > -1) { |
| 3832 |
if (seen !== array) { |
| 3833 |
splice.call(seen, fromIndex, 1); |
| 3834 |
} |
| 3835 |
splice.call(array, fromIndex, 1); |
| 3836 |
} |
| 3837 |
} |
| 3838 |
return array; |
| 3839 |
} |
| 3840 |
|
| 3841 |
/** |
| 3842 |
* The base implementation of `_.pullAt` without support for individual |
| 3843 |
* indexes or capturing the removed elements. |
| 3844 |
* |
| 3845 |
* @private |
| 3846 |
* @param {Array} array The array to modify. |
| 3847 |
* @param {number[]} indexes The indexes of elements to remove. |
| 3848 |
* @returns {Array} Returns `array`. |
| 3849 |
*/ |
| 3850 |
function basePullAt(array, indexes) { |
| 3851 |
var length = array ? indexes.length : 0, |
| 3852 |
lastIndex = length - 1; |
| 3853 |
|
| 3854 |
while (length--) { |
| 3855 |
var index = indexes[length]; |
| 3856 |
if (length == lastIndex || index !== previous) { |
| 3857 |
var previous = index; |
| 3858 |
if (isIndex(index)) { |
| 3859 |
splice.call(array, index, 1); |
| 3860 |
} else { |
| 3861 |
baseUnset(array, index); |
| 3862 |
} |
| 3863 |
} |
| 3864 |
} |
| 3865 |
return array; |
| 3866 |
} |
| 3867 |
|
| 3868 |
/** |
| 3869 |
* The base implementation of `_.random` without support for returning |
| 3870 |
* floating-point numbers. |
| 3871 |
* |
| 3872 |
* @private |
| 3873 |
* @param {number} lower The lower bound. |
| 3874 |
* @param {number} upper The upper bound. |
| 3875 |
* @returns {number} Returns the random number. |
| 3876 |
*/ |
| 3877 |
function baseRandom(lower, upper) { |
| 3878 |
return lower + nativeFloor(nativeRandom() * (upper - lower + 1)); |
| 3879 |
} |
| 3880 |
|
| 3881 |
/** |
| 3882 |
* The base implementation of `_.range` and `_.rangeRight` which doesn't |
| 3883 |
* coerce arguments. |
| 3884 |
* |
| 3885 |
* @private |
| 3886 |
* @param {number} start The start of the range. |
| 3887 |
* @param {number} end The end of the range. |
| 3888 |
* @param {number} step The value to increment or decrement by. |
| 3889 |
* @param {boolean} [fromRight] Specify iterating from right to left. |
| 3890 |
* @returns {Array} Returns the range of numbers. |
| 3891 |
*/ |
| 3892 |
function baseRange(start, end, step, fromRight) { |
| 3893 |
var index = -1, |
| 3894 |
length = nativeMax(nativeCeil((end - start) / (step || 1)), 0), |
| 3895 |
result = Array(length); |
| 3896 |
|
| 3897 |
while (length--) { |
| 3898 |
result[fromRight ? length : ++index] = start; |
| 3899 |
start += step; |
| 3900 |
} |
| 3901 |
return result; |
| 3902 |
} |
| 3903 |
|
| 3904 |
/** |
| 3905 |
* The base implementation of `_.repeat` which doesn't coerce arguments. |
| 3906 |
* |
| 3907 |
* @private |
| 3908 |
* @param {string} string The string to repeat. |
| 3909 |
* @param {number} n The number of times to repeat the string. |
| 3910 |
* @returns {string} Returns the repeated string. |
| 3911 |
*/ |
| 3912 |
function baseRepeat(string, n) { |
| 3913 |
var result = ''; |
| 3914 |
if (!string || n < 1 || n > MAX_SAFE_INTEGER) { |
| 3915 |
return result; |
| 3916 |
} |
| 3917 |
// Leverage the exponentiation by squaring algorithm for a faster repeat. |
| 3918 |
// See https://en.wikipedia.org/wiki/Exponentiation_by_squaring for more details. |
| 3919 |
do { |
| 3920 |
if (n % 2) { |
| 3921 |
result += string; |
| 3922 |
} |
| 3923 |
n = nativeFloor(n / 2); |
| 3924 |
if (n) { |
| 3925 |
string += string; |
| 3926 |
} |
| 3927 |
} while (n); |
| 3928 |
|
| 3929 |
return result; |
| 3930 |
} |
| 3931 |
|
| 3932 |
/** |
| 3933 |
* The base implementation of `_.rest` which doesn't validate or coerce arguments. |
| 3934 |
* |
| 3935 |
* @private |
| 3936 |
* @param {Function} func The function to apply a rest parameter to. |
| 3937 |
* @param {number} [start=func.length-1] The start position of the rest parameter. |
| 3938 |
* @returns {Function} Returns the new function. |
| 3939 |
*/ |
| 3940 |
function baseRest(func, start) { |
| 3941 |
return setToString(overRest(func, start, identity), func + ''); |
| 3942 |
} |
| 3943 |
|
| 3944 |
/** |
| 3945 |
* The base implementation of `_.sample`. |
| 3946 |
* |
| 3947 |
* @private |
| 3948 |
* @param {Array|Object} collection The collection to sample. |
| 3949 |
* @returns {*} Returns the random element. |
| 3950 |
*/ |
| 3951 |
function baseSample(collection) { |
| 3952 |
return arraySample(values(collection)); |
| 3953 |
} |
| 3954 |
|
| 3955 |
/** |
| 3956 |
* The base implementation of `_.sampleSize` without param guards. |
| 3957 |
* |
| 3958 |
* @private |
| 3959 |
* @param {Array|Object} collection The collection to sample. |
| 3960 |
* @param {number} n The number of elements to sample. |
| 3961 |
* @returns {Array} Returns the random elements. |
| 3962 |
*/ |
| 3963 |
function baseSampleSize(collection, n) { |
| 3964 |
var array = values(collection); |
| 3965 |
return shuffleSelf(array, baseClamp(n, 0, array.length)); |
| 3966 |
} |
| 3967 |
|
| 3968 |
/** |
| 3969 |
* The base implementation of `_.set`. |
| 3970 |
* |
| 3971 |
* @private |
| 3972 |
* @param {Object} object The object to modify. |
| 3973 |
* @param {Array|string} path The path of the property to set. |
| 3974 |
* @param {*} value The value to set. |
| 3975 |
* @param {Function} [customizer] The function to customize path creation. |
| 3976 |
* @returns {Object} Returns `object`. |
| 3977 |
*/ |
| 3978 |
function baseSet(object, path, value, customizer) { |
| 3979 |
if (!isObject(object)) { |
| 3980 |
return object; |
| 3981 |
} |
| 3982 |
path = castPath(path, object); |
| 3983 |
|
| 3984 |
var index = -1, |
| 3985 |
length = path.length, |
| 3986 |
lastIndex = length - 1, |
| 3987 |
nested = object; |
| 3988 |
|
| 3989 |
while (nested != null && ++index < length) { |
| 3990 |
var key = toKey(path[index]), |
| 3991 |
newValue = value; |
| 3992 |
|
| 3993 |
if (key === '__proto__' || key === 'constructor' || key === 'prototype') { |
| 3994 |
return object; |
| 3995 |
} |
| 3996 |
|
| 3997 |
if (index != lastIndex) { |
| 3998 |
var objValue = nested[key]; |
| 3999 |
newValue = customizer ? customizer(objValue, key, nested) : undefined; |
| 4000 |
if (newValue === undefined) { |
| 4001 |
newValue = isObject(objValue) |
| 4002 |
? objValue |
| 4003 |
: (isIndex(path[index + 1]) ? [] : {}); |
| 4004 |
} |
| 4005 |
} |
| 4006 |
assignValue(nested, key, newValue); |
| 4007 |
nested = nested[key]; |
| 4008 |
} |
| 4009 |
return object; |
| 4010 |
} |
| 4011 |
|
| 4012 |
/** |
| 4013 |
* The base implementation of `setData` without support for hot loop shorting. |
| 4014 |
* |
| 4015 |
* @private |
| 4016 |
* @param {Function} func The function to associate metadata with. |
| 4017 |
* @param {*} data The metadata. |
| 4018 |
* @returns {Function} Returns `func`. |
| 4019 |
*/ |
| 4020 |
var baseSetData = !metaMap ? identity : function(func, data) { |
| 4021 |
metaMap.set(func, data); |
| 4022 |
return func; |
| 4023 |
}; |
| 4024 |
|
| 4025 |
/** |
| 4026 |
* The base implementation of `setToString` without support for hot loop shorting. |
| 4027 |
* |
| 4028 |
* @private |
| 4029 |
* @param {Function} func The function to modify. |
| 4030 |
* @param {Function} string The `toString` result. |
| 4031 |
* @returns {Function} Returns `func`. |
| 4032 |
*/ |
| 4033 |
var baseSetToString = !defineProperty ? identity : function(func, string) { |
| 4034 |
return defineProperty(func, 'toString', { |
| 4035 |
'configurable': true, |
| 4036 |
'enumerable': false, |
| 4037 |
'value': constant(string), |
| 4038 |
'writable': true |
| 4039 |
}); |
| 4040 |
}; |
| 4041 |
|
| 4042 |
/** |
| 4043 |
* The base implementation of `_.shuffle`. |
| 4044 |
* |
| 4045 |
* @private |
| 4046 |
* @param {Array|Object} collection The collection to shuffle. |
| 4047 |
* @returns {Array} Returns the new shuffled array. |
| 4048 |
*/ |
| 4049 |
function baseShuffle(collection) { |
| 4050 |
return shuffleSelf(values(collection)); |
| 4051 |
} |
| 4052 |
|
| 4053 |
/** |
| 4054 |
* The base implementation of `_.slice` without an iteratee call guard. |
| 4055 |
* |
| 4056 |
* @private |
| 4057 |
* @param {Array} array The array to slice. |
| 4058 |
* @param {number} [start=0] The start position. |
| 4059 |
* @param {number} [end=array.length] The end position. |
| 4060 |
* @returns {Array} Returns the slice of `array`. |
| 4061 |
*/ |
| 4062 |
function baseSlice(array, start, end) { |
| 4063 |
var index = -1, |
| 4064 |
length = array.length; |
| 4065 |
|
| 4066 |
if (start < 0) { |
| 4067 |
start = -start > length ? 0 : (length + start); |
| 4068 |
} |
| 4069 |
end = end > length ? length : end; |
| 4070 |
if (end < 0) { |
| 4071 |
end += length; |
| 4072 |
} |
| 4073 |
length = start > end ? 0 : ((end - start) >>> 0); |
| 4074 |
start >>>= 0; |
| 4075 |
|
| 4076 |
var result = Array(length); |
| 4077 |
while (++index < length) { |
| 4078 |
result[index] = array[index + start]; |
| 4079 |
} |
| 4080 |
return result; |
| 4081 |
} |
| 4082 |
|
| 4083 |
/** |
| 4084 |
* The base implementation of `_.some` without support for iteratee shorthands. |
| 4085 |
* |
| 4086 |
* @private |
| 4087 |
* @param {Array|Object} collection The collection to iterate over. |
| 4088 |
* @param {Function} predicate The function invoked per iteration. |
| 4089 |
* @returns {boolean} Returns `true` if any element passes the predicate check, |
| 4090 |
* else `false`. |
| 4091 |
*/ |
| 4092 |
function baseSome(collection, predicate) { |
| 4093 |
var result; |
| 4094 |
|
| 4095 |
baseEach(collection, function(value, index, collection) { |
| 4096 |
result = predicate(value, index, collection); |
| 4097 |
return !result; |
| 4098 |
}); |
| 4099 |
return !!result; |
| 4100 |
} |
| 4101 |
|
| 4102 |
/** |
| 4103 |
* The base implementation of `_.sortedIndex` and `_.sortedLastIndex` which |
| 4104 |
* performs a binary search of `array` to determine the index at which `value` |
| 4105 |
* should be inserted into `array` in order to maintain its sort order. |
| 4106 |
* |
| 4107 |
* @private |
| 4108 |
* @param {Array} array The sorted array to inspect. |
| 4109 |
* @param {*} value The value to evaluate. |
| 4110 |
* @param {boolean} [retHighest] Specify returning the highest qualified index. |
| 4111 |
* @returns {number} Returns the index at which `value` should be inserted |
| 4112 |
* into `array`. |
| 4113 |
*/ |
| 4114 |
function baseSortedIndex(array, value, retHighest) { |
| 4115 |
var low = 0, |
| 4116 |
high = array == null ? low : array.length; |
| 4117 |
|
| 4118 |
if (typeof value == 'number' && value === value && high <= HALF_MAX_ARRAY_LENGTH) { |
| 4119 |
while (low < high) { |
| 4120 |
var mid = (low + high) >>> 1, |
| 4121 |
computed = array[mid]; |
| 4122 |
|
| 4123 |
if (computed !== null && !isSymbol(computed) && |
| 4124 |
(retHighest ? (computed <= value) : (computed < value))) { |
| 4125 |
low = mid + 1; |
| 4126 |
} else { |
| 4127 |
high = mid; |
| 4128 |
} |
| 4129 |
} |
| 4130 |
return high; |
| 4131 |
} |
| 4132 |
return baseSortedIndexBy(array, value, identity, retHighest); |
| 4133 |
} |
| 4134 |
|
| 4135 |
/** |
| 4136 |
* The base implementation of `_.sortedIndexBy` and `_.sortedLastIndexBy` |
| 4137 |
* which invokes `iteratee` for `value` and each element of `array` to compute |
| 4138 |
* their sort ranking. The iteratee is invoked with one argument; (value). |
| 4139 |
* |
| 4140 |
* @private |
| 4141 |
* @param {Array} array The sorted array to inspect. |
| 4142 |
* @param {*} value The value to evaluate. |
| 4143 |
* @param {Function} iteratee The iteratee invoked per element. |
| 4144 |
* @param {boolean} [retHighest] Specify returning the highest qualified index. |
| 4145 |
* @returns {number} Returns the index at which `value` should be inserted |
| 4146 |
* into `array`. |
| 4147 |
*/ |
| 4148 |
function baseSortedIndexBy(array, value, iteratee, retHighest) { |
| 4149 |
var low = 0, |
| 4150 |
high = array == null ? 0 : array.length; |
| 4151 |
if (high === 0) { |
| 4152 |
return 0; |
| 4153 |
} |
| 4154 |
|
| 4155 |
value = iteratee(value); |
| 4156 |
var valIsNaN = value !== value, |
| 4157 |
valIsNull = value === null, |
| 4158 |
valIsSymbol = isSymbol(value), |
| 4159 |
valIsUndefined = value === undefined; |
| 4160 |
|
| 4161 |
while (low < high) { |
| 4162 |
var mid = nativeFloor((low + high) / 2), |
| 4163 |
computed = iteratee(array[mid]), |
| 4164 |
othIsDefined = computed !== undefined, |
| 4165 |
othIsNull = computed === null, |
| 4166 |
othIsReflexive = computed === computed, |
| 4167 |
othIsSymbol = isSymbol(computed); |
| 4168 |
|
| 4169 |
if (valIsNaN) { |
| 4170 |
var setLow = retHighest || othIsReflexive; |
| 4171 |
} else if (valIsUndefined) { |
| 4172 |
setLow = othIsReflexive && (retHighest || othIsDefined); |
| 4173 |
} else if (valIsNull) { |
| 4174 |
setLow = othIsReflexive && othIsDefined && (retHighest || !othIsNull); |
| 4175 |
} else if (valIsSymbol) { |
| 4176 |
setLow = othIsReflexive && othIsDefined && !othIsNull && (retHighest || !othIsSymbol); |
| 4177 |
} else if (othIsNull || othIsSymbol) { |
| 4178 |
setLow = false; |
| 4179 |
} else { |
| 4180 |
setLow = retHighest ? (computed <= value) : (computed < value); |
| 4181 |
} |
| 4182 |
if (setLow) { |
| 4183 |
low = mid + 1; |
| 4184 |
} else { |
| 4185 |
high = mid; |
| 4186 |
} |
| 4187 |
} |
| 4188 |
return nativeMin(high, MAX_ARRAY_INDEX); |
| 4189 |
} |
| 4190 |
|
| 4191 |
/** |
| 4192 |
* The base implementation of `_.sortedUniq` and `_.sortedUniqBy` without |
| 4193 |
* support for iteratee shorthands. |
| 4194 |
* |
| 4195 |
* @private |
| 4196 |
* @param {Array} array The array to inspect. |
| 4197 |
* @param {Function} [iteratee] The iteratee invoked per element. |
| 4198 |
* @returns {Array} Returns the new duplicate free array. |
| 4199 |
*/ |
| 4200 |
function baseSortedUniq(array, iteratee) { |
| 4201 |
var index = -1, |
| 4202 |
length = array.length, |
| 4203 |
resIndex = 0, |
| 4204 |
result = []; |
| 4205 |
|
| 4206 |
while (++index < length) { |
| 4207 |
var value = array[index], |
| 4208 |
computed = iteratee ? iteratee(value) : value; |
| 4209 |
|
| 4210 |
if (!index || !eq(computed, seen)) { |
| 4211 |
var seen = computed; |
| 4212 |
result[resIndex++] = value === 0 ? 0 : value; |
| 4213 |
} |
| 4214 |
} |
| 4215 |
return result; |
| 4216 |
} |
| 4217 |
|
| 4218 |
/** |
| 4219 |
* The base implementation of `_.toNumber` which doesn't ensure correct |
| 4220 |
* conversions of binary, hexadecimal, or octal string values. |
| 4221 |
* |
| 4222 |
* @private |
| 4223 |
* @param {*} value The value to process. |
| 4224 |
* @returns {number} Returns the number. |
| 4225 |
*/ |
| 4226 |
function baseToNumber(value) { |
| 4227 |
if (typeof value == 'number') { |
| 4228 |
return value; |
| 4229 |
} |
| 4230 |
if (isSymbol(value)) { |
| 4231 |
return NAN; |
| 4232 |
} |
| 4233 |
return +value; |
| 4234 |
} |
| 4235 |
|
| 4236 |
/** |
| 4237 |
* The base implementation of `_.toString` which doesn't convert nullish |
| 4238 |
* values to empty strings. |
| 4239 |
* |
| 4240 |
* @private |
| 4241 |
* @param {*} value The value to process. |
| 4242 |
* @returns {string} Returns the string. |
| 4243 |
*/ |
| 4244 |
function baseToString(value) { |
| 4245 |
// Exit early for strings to avoid a performance hit in some environments. |
| 4246 |
if (typeof value == 'string') { |
| 4247 |
return value; |
| 4248 |
} |
| 4249 |
if (isArray(value)) { |
| 4250 |
// Recursively convert values (susceptible to call stack limits). |
| 4251 |
return arrayMap(value, baseToString) + ''; |
| 4252 |
} |
| 4253 |
if (isSymbol(value)) { |
| 4254 |
return symbolToString ? symbolToString.call(value) : ''; |
| 4255 |
} |
| 4256 |
var result = (value + ''); |
| 4257 |
return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result; |
| 4258 |
} |
| 4259 |
|
| 4260 |
/** |
| 4261 |
* The base implementation of `_.uniqBy` without support for iteratee shorthands. |
| 4262 |
* |
| 4263 |
* @private |
| 4264 |
* @param {Array} array The array to inspect. |
| 4265 |
* @param {Function} [iteratee] The iteratee invoked per element. |
| 4266 |
* @param {Function} [comparator] The comparator invoked per element. |
| 4267 |
* @returns {Array} Returns the new duplicate free array. |
| 4268 |
*/ |
| 4269 |
function baseUniq(array, iteratee, comparator) { |
| 4270 |
var index = -1, |
| 4271 |
includes = arrayIncludes, |
| 4272 |
length = array.length, |
| 4273 |
isCommon = true, |
| 4274 |
result = [], |
| 4275 |
seen = result; |
| 4276 |
|
| 4277 |
if (comparator) { |
| 4278 |
isCommon = false; |
| 4279 |
includes = arrayIncludesWith; |
| 4280 |
} |
| 4281 |
else if (length >= LARGE_ARRAY_SIZE) { |
| 4282 |
var set = iteratee ? null : createSet(array); |
| 4283 |
if (set) { |
| 4284 |
return setToArray(set); |
| 4285 |
} |
| 4286 |
isCommon = false; |
| 4287 |
includes = cacheHas; |
| 4288 |
seen = new SetCache; |
| 4289 |
} |
| 4290 |
else { |
| 4291 |
seen = iteratee ? [] : result; |
| 4292 |
} |
| 4293 |
outer: |
| 4294 |
while (++index < length) { |
| 4295 |
var value = array[index], |
| 4296 |
computed = iteratee ? iteratee(value) : value; |
| 4297 |
|
| 4298 |
value = (comparator || value !== 0) ? value : 0; |
| 4299 |
if (isCommon && computed === computed) { |
| 4300 |
var seenIndex = seen.length; |
| 4301 |
while (seenIndex--) { |
| 4302 |
if (seen[seenIndex] === computed) { |
| 4303 |
continue outer; |
| 4304 |
} |
| 4305 |
} |
| 4306 |
if (iteratee) { |
| 4307 |
seen.push(computed); |
| 4308 |
} |
| 4309 |
result.push(value); |
| 4310 |
} |
| 4311 |
else if (!includes(seen, computed, comparator)) { |
| 4312 |
if (seen !== result) { |
| 4313 |
seen.push(computed); |
| 4314 |
} |
| 4315 |
result.push(value); |
| 4316 |
} |
| 4317 |
} |
| 4318 |
return result; |
| 4319 |
} |
| 4320 |
|
| 4321 |
/** |
| 4322 |
* The base implementation of `_.unset`. |
| 4323 |
* |
| 4324 |
* @private |
| 4325 |
* @param {Object} object The object to modify. |
| 4326 |
* @param {Array|string} path The property path to unset. |
| 4327 |
* @returns {boolean} Returns `true` if the property is deleted, else `false`. |
| 4328 |
*/ |
| 4329 |
function baseUnset(object, path) { |
| 4330 |
path = castPath(path, object); |
| 4331 |
object = parent(object, path); |
| 4332 |
return object == null || delete object[toKey(last(path))]; |
| 4333 |
} |
| 4334 |
|
| 4335 |
/** |
| 4336 |
* The base implementation of `_.update`. |
| 4337 |
* |
| 4338 |
* @private |
| 4339 |
* @param {Object} object The object to modify. |
| 4340 |
* @param {Array|string} path The path of the property to update. |
| 4341 |
* @param {Function} updater The function to produce the updated value. |
| 4342 |
* @param {Function} [customizer] The function to customize path creation. |
| 4343 |
* @returns {Object} Returns `object`. |
| 4344 |
*/ |
| 4345 |
function baseUpdate(object, path, updater, customizer) { |
| 4346 |
return baseSet(object, path, updater(baseGet(object, path)), customizer); |
| 4347 |
} |
| 4348 |
|
| 4349 |
/** |
| 4350 |
* The base implementation of methods like `_.dropWhile` and `_.takeWhile` |
| 4351 |
* without support for iteratee shorthands. |
| 4352 |
* |
| 4353 |
* @private |
| 4354 |
* @param {Array} array The array to query. |
| 4355 |
* @param {Function} predicate The function invoked per iteration. |
| 4356 |
* @param {boolean} [isDrop] Specify dropping elements instead of taking them. |
| 4357 |
* @param {boolean} [fromRight] Specify iterating from right to left. |
| 4358 |
* @returns {Array} Returns the slice of `array`. |
| 4359 |
*/ |
| 4360 |
function baseWhile(array, predicate, isDrop, fromRight) { |
| 4361 |
var length = array.length, |
| 4362 |
index = fromRight ? length : -1; |
| 4363 |
|
| 4364 |
while ((fromRight ? index-- : ++index < length) && |
| 4365 |
predicate(array[index], index, array)) {} |
| 4366 |
|
| 4367 |
return isDrop |
| 4368 |
? baseSlice(array, (fromRight ? 0 : index), (fromRight ? index + 1 : length)) |
| 4369 |
: baseSlice(array, (fromRight ? index + 1 : 0), (fromRight ? length : index)); |
| 4370 |
} |
| 4371 |
|
| 4372 |
/** |
| 4373 |
* The base implementation of `wrapperValue` which returns the result of |
| 4374 |
* performing a sequence of actions on the unwrapped `value`, where each |
| 4375 |
* successive action is supplied the return value of the previous. |
| 4376 |
* |
| 4377 |
* @private |
| 4378 |
* @param {*} value The unwrapped value. |
| 4379 |
* @param {Array} actions Actions to perform to resolve the unwrapped value. |
| 4380 |
* @returns {*} Returns the resolved value. |
| 4381 |
*/ |
| 4382 |
function baseWrapperValue(value, actions) { |
| 4383 |
var result = value; |
| 4384 |
if (result instanceof LazyWrapper) { |
| 4385 |
result = result.value(); |
| 4386 |
} |
| 4387 |
return arrayReduce(actions, function(result, action) { |
| 4388 |
return action.func.apply(action.thisArg, arrayPush([result], action.args)); |
| 4389 |
}, result); |
| 4390 |
} |
| 4391 |
|
| 4392 |
/** |
| 4393 |
* The base implementation of methods like `_.xor`, without support for |
| 4394 |
* iteratee shorthands, that accepts an array of arrays to inspect. |
| 4395 |
* |
| 4396 |
* @private |
| 4397 |
* @param {Array} arrays The arrays to inspect. |
| 4398 |
* @param {Function} [iteratee] The iteratee invoked per element. |
| 4399 |
* @param {Function} [comparator] The comparator invoked per element. |
| 4400 |
* @returns {Array} Returns the new array of values. |
| 4401 |
*/ |
| 4402 |
function baseXor(arrays, iteratee, comparator) { |
| 4403 |
var length = arrays.length; |
| 4404 |
if (length < 2) { |
| 4405 |
return length ? baseUniq(arrays[0]) : []; |
| 4406 |
} |
| 4407 |
var index = -1, |
| 4408 |
result = Array(length); |
| 4409 |
|
| 4410 |
while (++index < length) { |
| 4411 |
var array = arrays[index], |
| 4412 |
othIndex = -1; |
| 4413 |
|
| 4414 |
while (++othIndex < length) { |
| 4415 |
if (othIndex != index) { |
| 4416 |
result[index] = baseDifference(result[index] || array, arrays[othIndex], iteratee, comparator); |
| 4417 |
} |
| 4418 |
} |
| 4419 |
} |
| 4420 |
return baseUniq(baseFlatten(result, 1), iteratee, comparator); |
| 4421 |
} |
| 4422 |
|
| 4423 |
/** |
| 4424 |
* This base implementation of `_.zipObject` which assigns values using `assignFunc`. |
| 4425 |
* |
| 4426 |
* @private |
| 4427 |
* @param {Array} props The property identifiers. |
| 4428 |
* @param {Array} values The property values. |
| 4429 |
* @param {Function} assignFunc The function to assign values. |
| 4430 |
* @returns {Object} Returns the new object. |
| 4431 |
*/ |
| 4432 |
function baseZipObject(props, values, assignFunc) { |
| 4433 |
var index = -1, |
| 4434 |
length = props.length, |
| 4435 |
valsLength = values.length, |
| 4436 |
result = {}; |
| 4437 |
|
| 4438 |
while (++index < length) { |
| 4439 |
var value = index < valsLength ? values[index] : undefined; |
| 4440 |
assignFunc(result, props[index], value); |
| 4441 |
} |
| 4442 |
return result; |
| 4443 |
} |
| 4444 |
|
| 4445 |
/** |
| 4446 |
* Casts `value` to an empty array if it's not an array like object. |
| 4447 |
* |
| 4448 |
* @private |
| 4449 |
* @param {*} value The value to inspect. |
| 4450 |
* @returns {Array|Object} Returns the cast array-like object. |
| 4451 |
*/ |
| 4452 |
function castArrayLikeObject(value) { |
| 4453 |
return isArrayLikeObject(value) ? value : []; |
| 4454 |
} |
| 4455 |
|
| 4456 |
/** |
| 4457 |
* Casts `value` to `identity` if it's not a function. |
| 4458 |
* |
| 4459 |
* @private |
| 4460 |
* @param {*} value The value to inspect. |
| 4461 |
* @returns {Function} Returns cast function. |
| 4462 |
*/ |
| 4463 |
function castFunction(value) { |
| 4464 |
return typeof value == 'function' ? value : identity; |
| 4465 |
} |
| 4466 |
|
| 4467 |
/** |
| 4468 |
* Casts `value` to a path array if it's not one. |
| 4469 |
* |
| 4470 |
* @private |
| 4471 |
* @param {*} value The value to inspect. |
| 4472 |
* @param {Object} [object] The object to query keys on. |
| 4473 |
* @returns {Array} Returns the cast property path array. |
| 4474 |
*/ |
| 4475 |
function castPath(value, object) { |
| 4476 |
if (isArray(value)) { |
| 4477 |
return value; |
| 4478 |
} |
| 4479 |
return isKey(value, object) ? [value] : stringToPath(toString(value)); |
| 4480 |
} |
| 4481 |
|
| 4482 |
/** |
| 4483 |
* A `baseRest` alias which can be replaced with `identity` by module |
| 4484 |
* replacement plugins. |
| 4485 |
* |
| 4486 |
* @private |
| 4487 |
* @type {Function} |
| 4488 |
* @param {Function} func The function to apply a rest parameter to. |
| 4489 |
* @returns {Function} Returns the new function. |
| 4490 |
*/ |
| 4491 |
var castRest = baseRest; |
| 4492 |
|
| 4493 |
/** |
| 4494 |
* Casts `array` to a slice if it's needed. |
| 4495 |
* |
| 4496 |
* @private |
| 4497 |
* @param {Array} array The array to inspect. |
| 4498 |
* @param {number} start The start position. |
| 4499 |
* @param {number} [end=array.length] The end position. |
| 4500 |
* @returns {Array} Returns the cast slice. |
| 4501 |
*/ |
| 4502 |
function castSlice(array, start, end) { |
| 4503 |
var length = array.length; |
| 4504 |
end = end === undefined ? length : end; |
| 4505 |
return (!start && end >= length) ? array : baseSlice(array, start, end); |
| 4506 |
} |
| 4507 |
|
| 4508 |
/** |
| 4509 |
* A simple wrapper around the global [`clearTimeout`](https://mdn.io/clearTimeout). |
| 4510 |
* |
| 4511 |
* @private |
| 4512 |
* @param {number|Object} id The timer id or timeout object of the timer to clear. |
| 4513 |
*/ |
| 4514 |
var clearTimeout = ctxClearTimeout || function(id) { |
| 4515 |
return root.clearTimeout(id); |
| 4516 |
}; |
| 4517 |
|
| 4518 |
/** |
| 4519 |
* Creates a clone of `buffer`. |
| 4520 |
* |
| 4521 |
* @private |
| 4522 |
* @param {Buffer} buffer The buffer to clone. |
| 4523 |
* @param {boolean} [isDeep] Specify a deep clone. |
| 4524 |
* @returns {Buffer} Returns the cloned buffer. |
| 4525 |
*/ |
| 4526 |
function cloneBuffer(buffer, isDeep) { |
| 4527 |
if (isDeep) { |
| 4528 |
return buffer.slice(); |
| 4529 |
} |
| 4530 |
var length = buffer.length, |
| 4531 |
result = allocUnsafe ? allocUnsafe(length) : new buffer.constructor(length); |
| 4532 |
|
| 4533 |
buffer.copy(result); |
| 4534 |
return result; |
| 4535 |
} |
| 4536 |
|
| 4537 |
/** |
| 4538 |
* Creates a clone of `arrayBuffer`. |
| 4539 |
* |
| 4540 |
* @private |
| 4541 |
* @param {ArrayBuffer} arrayBuffer The array buffer to clone. |
| 4542 |
* @returns {ArrayBuffer} Returns the cloned array buffer. |
| 4543 |
*/ |
| 4544 |
function cloneArrayBuffer(arrayBuffer) { |
| 4545 |
var result = new arrayBuffer.constructor(arrayBuffer.byteLength); |
| 4546 |
new Uint8Array(result).set(new Uint8Array(arrayBuffer)); |
| 4547 |
return result; |
| 4548 |
} |
| 4549 |
|
| 4550 |
/** |
| 4551 |
* Creates a clone of `dataView`. |
| 4552 |
* |
| 4553 |
* @private |
| 4554 |
* @param {Object} dataView The data view to clone. |
| 4555 |
* @param {boolean} [isDeep] Specify a deep clone. |
| 4556 |
* @returns {Object} Returns the cloned data view. |
| 4557 |
*/ |
| 4558 |
function cloneDataView(dataView, isDeep) { |
| 4559 |
var buffer = isDeep ? cloneArrayBuffer(dataView.buffer) : dataView.buffer; |
| 4560 |
return new dataView.constructor(buffer, dataView.byteOffset, dataView.byteLength); |
| 4561 |
} |
| 4562 |
|
| 4563 |
/** |
| 4564 |
* Creates a clone of `regexp`. |
| 4565 |
* |
| 4566 |
* @private |
| 4567 |
* @param {Object} regexp The regexp to clone. |
| 4568 |
* @returns {Object} Returns the cloned regexp. |
| 4569 |
*/ |
| 4570 |
function cloneRegExp(regexp) { |
| 4571 |
var result = new regexp.constructor(regexp.source, reFlags.exec(regexp)); |
| 4572 |
result.lastIndex = regexp.lastIndex; |
| 4573 |
return result; |
| 4574 |
} |
| 4575 |
|
| 4576 |
/** |
| 4577 |
* Creates a clone of the `symbol` object. |
| 4578 |
* |
| 4579 |
* @private |
| 4580 |
* @param {Object} symbol The symbol object to clone. |
| 4581 |
* @returns {Object} Returns the cloned symbol object. |
| 4582 |
*/ |
| 4583 |
function cloneSymbol(symbol) { |
| 4584 |
return symbolValueOf ? Object(symbolValueOf.call(symbol)) : {}; |
| 4585 |
} |
| 4586 |
|
| 4587 |
/** |
| 4588 |
* Creates a clone of `typedArray`. |
| 4589 |
* |
| 4590 |
* @private |
| 4591 |
* @param {Object} typedArray The typed array to clone. |
| 4592 |
* @param {boolean} [isDeep] Specify a deep clone. |
| 4593 |
* @returns {Object} Returns the cloned typed array. |
| 4594 |
*/ |
| 4595 |
function cloneTypedArray(typedArray, isDeep) { |
| 4596 |
var buffer = isDeep ? cloneArrayBuffer(typedArray.buffer) : typedArray.buffer; |
| 4597 |
return new typedArray.constructor(buffer, typedArray.byteOffset, typedArray.length); |
| 4598 |
} |
| 4599 |
|
| 4600 |
/** |
| 4601 |
* Compares values to sort them in ascending order. |
| 4602 |
* |
| 4603 |
* @private |
| 4604 |
* @param {*} value The value to compare. |
| 4605 |
* @param {*} other The other value to compare. |
| 4606 |
* @returns {number} Returns the sort order indicator for `value`. |
| 4607 |
*/ |
| 4608 |
function compareAscending(value, other) { |
| 4609 |
if (value !== other) { |
| 4610 |
var valIsDefined = value !== undefined, |
| 4611 |
valIsNull = value === null, |
| 4612 |
valIsReflexive = value === value, |
| 4613 |
valIsSymbol = isSymbol(value); |
| 4614 |
|
| 4615 |
var othIsDefined = other !== undefined, |
| 4616 |
othIsNull = other === null, |
| 4617 |
othIsReflexive = other === other, |
| 4618 |
othIsSymbol = isSymbol(other); |
| 4619 |
|
| 4620 |
if ((!othIsNull && !othIsSymbol && !valIsSymbol && value > other) || |
| 4621 |
(valIsSymbol && othIsDefined && othIsReflexive && !othIsNull && !othIsSymbol) || |
| 4622 |
(valIsNull && othIsDefined && othIsReflexive) || |
| 4623 |
(!valIsDefined && othIsReflexive) || |
| 4624 |
!valIsReflexive) { |
| 4625 |
return 1; |
| 4626 |
} |
| 4627 |
if ((!valIsNull && !valIsSymbol && !othIsSymbol && value < other) || |
| 4628 |
(othIsSymbol && valIsDefined && valIsReflexive && !valIsNull && !valIsSymbol) || |
| 4629 |
(othIsNull && valIsDefined && valIsReflexive) || |
| 4630 |
(!othIsDefined && valIsReflexive) || |
| 4631 |
!othIsReflexive) { |
| 4632 |
return -1; |
| 4633 |
} |
| 4634 |
} |
| 4635 |
return 0; |
| 4636 |
} |
| 4637 |
|
| 4638 |
/** |
| 4639 |
* Used by `_.orderBy` to compare multiple properties of a value to another |
| 4640 |
* and stable sort them. |
| 4641 |
* |
| 4642 |
* If `orders` is unspecified, all values are sorted in ascending order. Otherwise, |
| 4643 |
* specify an order of "desc" for descending or "asc" for ascending sort order |
| 4644 |
* of corresponding values. |
| 4645 |
* |
| 4646 |
* @private |
| 4647 |
* @param {Object} object The object to compare. |
| 4648 |
* @param {Object} other The other object to compare. |
| 4649 |
* @param {boolean[]|string[]} orders The order to sort by for each property. |
| 4650 |
* @returns {number} Returns the sort order indicator for `object`. |
| 4651 |
*/ |
| 4652 |
function compareMultiple(object, other, orders) { |
| 4653 |
var index = -1, |
| 4654 |
objCriteria = object.criteria, |
| 4655 |
othCriteria = other.criteria, |
| 4656 |
length = objCriteria.length, |
| 4657 |
ordersLength = orders.length; |
| 4658 |
|
| 4659 |
while (++index < length) { |
| 4660 |
var result = compareAscending(objCriteria[index], othCriteria[index]); |
| 4661 |
if (result) { |
| 4662 |
if (index >= ordersLength) { |
| 4663 |
return result; |
| 4664 |
} |
| 4665 |
var order = orders[index]; |
| 4666 |
return result * (order == 'desc' ? -1 : 1); |
| 4667 |
} |
| 4668 |
} |
| 4669 |
// Fixes an `Array#sort` bug in the JS engine embedded in Adobe applications |
| 4670 |
// that causes it, under certain circumstances, to provide the same value for |
| 4671 |
// `object` and `other`. See https://github.com/jashkenas/underscore/pull/1247 |
| 4672 |
// for more details. |
| 4673 |
// |
| 4674 |
// This also ensures a stable sort in V8 and other engines. |
| 4675 |
// See https://bugs.chromium.org/p/v8/issues/detail?id=90 for more details. |
| 4676 |
return object.index - other.index; |
| 4677 |
} |
| 4678 |
|
| 4679 |
/** |
| 4680 |
* Creates an array that is the composition of partially applied arguments, |
| 4681 |
* placeholders, and provided arguments into a single array of arguments. |
| 4682 |
* |
| 4683 |
* @private |
| 4684 |
* @param {Array} args The provided arguments. |
| 4685 |
* @param {Array} partials The arguments to prepend to those provided. |
| 4686 |
* @param {Array} holders The `partials` placeholder indexes. |
| 4687 |
* @params {boolean} [isCurried] Specify composing for a curried function. |
| 4688 |
* @returns {Array} Returns the new array of composed arguments. |
| 4689 |
*/ |
| 4690 |
function composeArgs(args, partials, holders, isCurried) { |
| 4691 |
var argsIndex = -1, |
| 4692 |
argsLength = args.length, |
| 4693 |
holdersLength = holders.length, |
| 4694 |
leftIndex = -1, |
| 4695 |
leftLength = partials.length, |
| 4696 |
rangeLength = nativeMax(argsLength - holdersLength, 0), |
| 4697 |
result = Array(leftLength + rangeLength), |
| 4698 |
isUncurried = !isCurried; |
| 4699 |
|
| 4700 |
while (++leftIndex < leftLength) { |
| 4701 |
result[leftIndex] = partials[leftIndex]; |
| 4702 |
} |
| 4703 |
while (++argsIndex < holdersLength) { |
| 4704 |
if (isUncurried || argsIndex < argsLength) { |
| 4705 |
result[holders[argsIndex]] = args[argsIndex]; |
| 4706 |
} |
| 4707 |
} |
| 4708 |
while (rangeLength--) { |
| 4709 |
result[leftIndex++] = args[argsIndex++]; |
| 4710 |
} |
| 4711 |
return result; |
| 4712 |
} |
| 4713 |
|
| 4714 |
/** |
| 4715 |
* This function is like `composeArgs` except that the arguments composition |
| 4716 |
* is tailored for `_.partialRight`. |
| 4717 |
* |
| 4718 |
* @private |
| 4719 |
* @param {Array} args The provided arguments. |
| 4720 |
* @param {Array} partials The arguments to append to those provided. |
| 4721 |
* @param {Array} holders The `partials` placeholder indexes. |
| 4722 |
* @params {boolean} [isCurried] Specify composing for a curried function. |
| 4723 |
* @returns {Array} Returns the new array of composed arguments. |
| 4724 |
*/ |
| 4725 |
function composeArgsRight(args, partials, holders, isCurried) { |
| 4726 |
var argsIndex = -1, |
| 4727 |
argsLength = args.length, |
| 4728 |
holdersIndex = -1, |
| 4729 |
holdersLength = holders.length, |
| 4730 |
rightIndex = -1, |
| 4731 |
rightLength = partials.length, |
| 4732 |
rangeLength = nativeMax(argsLength - holdersLength, 0), |
| 4733 |
result = Array(rangeLength + rightLength), |
| 4734 |
isUncurried = !isCurried; |
| 4735 |
|
| 4736 |
while (++argsIndex < rangeLength) { |
| 4737 |
result[argsIndex] = args[argsIndex]; |
| 4738 |
} |
| 4739 |
var offset = argsIndex; |
| 4740 |
while (++rightIndex < rightLength) { |
| 4741 |
result[offset + rightIndex] = partials[rightIndex]; |
| 4742 |
} |
| 4743 |
while (++holdersIndex < holdersLength) { |
| 4744 |
if (isUncurried || argsIndex < argsLength) { |
| 4745 |
result[offset + holders[holdersIndex]] = args[argsIndex++]; |
| 4746 |
} |
| 4747 |
} |
| 4748 |
return result; |
| 4749 |
} |
| 4750 |
|
| 4751 |
/** |
| 4752 |
* Copies the values of `source` to `array`. |
| 4753 |
* |
| 4754 |
* @private |
| 4755 |
* @param {Array} source The array to copy values from. |
| 4756 |
* @param {Array} [array=[]] The array to copy values to. |
| 4757 |
* @returns {Array} Returns `array`. |
| 4758 |
*/ |
| 4759 |
function copyArray(source, array) { |
| 4760 |
var index = -1, |
| 4761 |
length = source.length; |
| 4762 |
|
| 4763 |
array || (array = Array(length)); |
| 4764 |
while (++index < length) { |
| 4765 |
array[index] = source[index]; |
| 4766 |
} |
| 4767 |
return array; |
| 4768 |
} |
| 4769 |
|
| 4770 |
/** |
| 4771 |
* Copies properties of `source` to `object`. |
| 4772 |
* |
| 4773 |
* @private |
| 4774 |
* @param {Object} source The object to copy properties from. |
| 4775 |
* @param {Array} props The property identifiers to copy. |
| 4776 |
* @param {Object} [object={}] The object to copy properties to. |
| 4777 |
* @param {Function} [customizer] The function to customize copied values. |
| 4778 |
* @returns {Object} Returns `object`. |
| 4779 |
*/ |
| 4780 |
function copyObject(source, props, object, customizer) { |
| 4781 |
var isNew = !object; |
| 4782 |
object || (object = {}); |
| 4783 |
|
| 4784 |
var index = -1, |
| 4785 |
length = props.length; |
| 4786 |
|
| 4787 |
while (++index < length) { |
| 4788 |
var key = props[index]; |
| 4789 |
|
| 4790 |
var newValue = customizer |
| 4791 |
? customizer(object[key], source[key], key, object, source) |
| 4792 |
: undefined; |
| 4793 |
|
| 4794 |
if (newValue === undefined) { |
| 4795 |
newValue = source[key]; |
| 4796 |
} |
| 4797 |
if (isNew) { |
| 4798 |
baseAssignValue(object, key, newValue); |
| 4799 |
} else { |
| 4800 |
assignValue(object, key, newValue); |
| 4801 |
} |
| 4802 |
} |
| 4803 |
return object; |
| 4804 |
} |
| 4805 |
|
| 4806 |
/** |
| 4807 |
* Copies own symbols of `source` to `object`. |
| 4808 |
* |
| 4809 |
* @private |
| 4810 |
* @param {Object} source The object to copy symbols from. |
| 4811 |
* @param {Object} [object={}] The object to copy symbols to. |
| 4812 |
* @returns {Object} Returns `object`. |
| 4813 |
*/ |
| 4814 |
function copySymbols(source, object) { |
| 4815 |
return copyObject(source, getSymbols(source), object); |
| 4816 |
} |
| 4817 |
|
| 4818 |
/** |
| 4819 |
* Copies own and inherited symbols of `source` to `object`. |
| 4820 |
* |
| 4821 |
* @private |
| 4822 |
* @param {Object} source The object to copy symbols from. |
| 4823 |
* @param {Object} [object={}] The object to copy symbols to. |
| 4824 |
* @returns {Object} Returns `object`. |
| 4825 |
*/ |
| 4826 |
function copySymbolsIn(source, object) { |
| 4827 |
return copyObject(source, getSymbolsIn(source), object); |
| 4828 |
} |
| 4829 |
|
| 4830 |
/** |
| 4831 |
* Creates a function like `_.groupBy`. |
| 4832 |
* |
| 4833 |
* @private |
| 4834 |
* @param {Function} setter The function to set accumulator values. |
| 4835 |
* @param {Function} [initializer] The accumulator object initializer. |
| 4836 |
* @returns {Function} Returns the new aggregator function. |
| 4837 |
*/ |
| 4838 |
function createAggregator(setter, initializer) { |
| 4839 |
return function(collection, iteratee) { |
| 4840 |
var func = isArray(collection) ? arrayAggregator : baseAggregator, |
| 4841 |
accumulator = initializer ? initializer() : {}; |
| 4842 |
|
| 4843 |
return func(collection, setter, getIteratee(iteratee, 2), accumulator); |
| 4844 |
}; |
| 4845 |
} |
| 4846 |
|
| 4847 |
/** |
| 4848 |
* Creates a function like `_.assign`. |
| 4849 |
* |
| 4850 |
* @private |
| 4851 |
* @param {Function} assigner The function to assign values. |
| 4852 |
* @returns {Function} Returns the new assigner function. |
| 4853 |
*/ |
| 4854 |
function createAssigner(assigner) { |
| 4855 |
return baseRest(function(object, sources) { |
| 4856 |
var index = -1, |
| 4857 |
length = sources.length, |
| 4858 |
customizer = length > 1 ? sources[length - 1] : undefined, |
| 4859 |
guard = length > 2 ? sources[2] : undefined; |
| 4860 |
|
| 4861 |
customizer = (assigner.length > 3 && typeof customizer == 'function') |
| 4862 |
? (length--, customizer) |
| 4863 |
: undefined; |
| 4864 |
|
| 4865 |
if (guard && isIterateeCall(sources[0], sources[1], guard)) { |
| 4866 |
customizer = length < 3 ? undefined : customizer; |
| 4867 |
length = 1; |
| 4868 |
} |
| 4869 |
object = Object(object); |
| 4870 |
while (++index < length) { |
| 4871 |
var source = sources[index]; |
| 4872 |
if (source) { |
| 4873 |
assigner(object, source, index, customizer); |
| 4874 |
} |
| 4875 |
} |
| 4876 |
return object; |
| 4877 |
}); |
| 4878 |
} |
| 4879 |
|
| 4880 |
/** |
| 4881 |
* Creates a `baseEach` or `baseEachRight` function. |
| 4882 |
* |
| 4883 |
* @private |
| 4884 |
* @param {Function} eachFunc The function to iterate over a collection. |
| 4885 |
* @param {boolean} [fromRight] Specify iterating from right to left. |
| 4886 |
* @returns {Function} Returns the new base function. |
| 4887 |
*/ |
| 4888 |
function createBaseEach(eachFunc, fromRight) { |
| 4889 |
return function(collection, iteratee) { |
| 4890 |
if (collection == null) { |
| 4891 |
return collection; |
| 4892 |
} |
| 4893 |
if (!isArrayLike(collection)) { |
| 4894 |
return eachFunc(collection, iteratee); |
| 4895 |
} |
| 4896 |
var length = collection.length, |
| 4897 |
index = fromRight ? length : -1, |
| 4898 |
iterable = Object(collection); |
| 4899 |
|
| 4900 |
while ((fromRight ? index-- : ++index < length)) { |
| 4901 |
if (iteratee(iterable[index], index, iterable) === false) { |
| 4902 |
break; |
| 4903 |
} |
| 4904 |
} |
| 4905 |
return collection; |
| 4906 |
}; |
| 4907 |
} |
| 4908 |
|
| 4909 |
/** |
| 4910 |
* Creates a base function for methods like `_.forIn` and `_.forOwn`. |
| 4911 |
* |
| 4912 |
* @private |
| 4913 |
* @param {boolean} [fromRight] Specify iterating from right to left. |
| 4914 |
* @returns {Function} Returns the new base function. |
| 4915 |
*/ |
| 4916 |
function createBaseFor(fromRight) { |
| 4917 |
return function(object, iteratee, keysFunc) { |
| 4918 |
var index = -1, |
| 4919 |
iterable = Object(object), |
| 4920 |
props = keysFunc(object), |
| 4921 |
length = props.length; |
| 4922 |
|
| 4923 |
while (length--) { |
| 4924 |
var key = props[fromRight ? length : ++index]; |
| 4925 |
if (iteratee(iterable[key], key, iterable) === false) { |
| 4926 |
break; |
| 4927 |
} |
| 4928 |
} |
| 4929 |
return object; |
| 4930 |
}; |
| 4931 |
} |
| 4932 |
|
| 4933 |
/** |
| 4934 |
* Creates a function that wraps `func` to invoke it with the optional `this` |
| 4935 |
* binding of `thisArg`. |
| 4936 |
* |
| 4937 |
* @private |
| 4938 |
* @param {Function} func The function to wrap. |
| 4939 |
* @param {number} bitmask The bitmask flags. See `createWrap` for more details. |
| 4940 |
* @param {*} [thisArg] The `this` binding of `func`. |
| 4941 |
* @returns {Function} Returns the new wrapped function. |
| 4942 |
*/ |
| 4943 |
function createBind(func, bitmask, thisArg) { |
| 4944 |
var isBind = bitmask & WRAP_BIND_FLAG, |
| 4945 |
Ctor = createCtor(func); |
| 4946 |
|
| 4947 |
function wrapper() { |
| 4948 |
var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func; |
| 4949 |
return fn.apply(isBind ? thisArg : this, arguments); |
| 4950 |
} |
| 4951 |
return wrapper; |
| 4952 |
} |
| 4953 |
|
| 4954 |
/** |
| 4955 |
* Creates a function like `_.lowerFirst`. |
| 4956 |
* |
| 4957 |
* @private |
| 4958 |
* @param {string} methodName The name of the `String` case method to use. |
| 4959 |
* @returns {Function} Returns the new case function. |
| 4960 |
*/ |
| 4961 |
function createCaseFirst(methodName) { |
| 4962 |
return function(string) { |
| 4963 |
string = toString(string); |
| 4964 |
|
| 4965 |
var strSymbols = hasUnicode(string) |
| 4966 |
? stringToArray(string) |
| 4967 |
: undefined; |
| 4968 |
|
| 4969 |
var chr = strSymbols |
| 4970 |
? strSymbols[0] |
| 4971 |
: string.charAt(0); |
| 4972 |
|
| 4973 |
var trailing = strSymbols |
| 4974 |
? castSlice(strSymbols, 1).join('') |
| 4975 |
: string.slice(1); |
| 4976 |
|
| 4977 |
return chr[methodName]() + trailing; |
| 4978 |
}; |
| 4979 |
} |
| 4980 |
|
| 4981 |
/** |
| 4982 |
* Creates a function like `_.camelCase`. |
| 4983 |
* |
| 4984 |
* @private |
| 4985 |
* @param {Function} callback The function to combine each word. |
| 4986 |
* @returns {Function} Returns the new compounder function. |
| 4987 |
*/ |
| 4988 |
function createCompounder(callback) { |
| 4989 |
return function(string) { |
| 4990 |
return arrayReduce(words(deburr(string).replace(reApos, '')), callback, ''); |
| 4991 |
}; |
| 4992 |
} |
| 4993 |
|
| 4994 |
/** |
| 4995 |
* Creates a function that produces an instance of `Ctor` regardless of |
| 4996 |
* whether it was invoked as part of a `new` expression or by `call` or `apply`. |
| 4997 |
* |
| 4998 |
* @private |
| 4999 |
* @param {Function} Ctor The constructor to wrap. |
| 5000 |
* @returns {Function} Returns the new wrapped function. |
| 5001 |
*/ |
| 5002 |
function createCtor(Ctor) { |
| 5003 |
return function() { |
| 5004 |
// Use a `switch` statement to work with class constructors. See |
| 5005 |
// http://ecma-international.org/ecma-262/7.0/#sec-ecmascript-function-objects-call-thisargument-argumentslist |
| 5006 |
// for more details. |
| 5007 |
var args = arguments; |
| 5008 |
switch (args.length) { |
| 5009 |
case 0: return new Ctor; |
| 5010 |
case 1: return new Ctor(args[0]); |
| 5011 |
case 2: return new Ctor(args[0], args[1]); |
| 5012 |
case 3: return new Ctor(args[0], args[1], args[2]); |
| 5013 |
case 4: return new Ctor(args[0], args[1], args[2], args[3]); |
| 5014 |
case 5: return new Ctor(args[0], args[1], args[2], args[3], args[4]); |
| 5015 |
case 6: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5]); |
| 5016 |
case 7: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5], args[6]); |
| 5017 |
} |
| 5018 |
var thisBinding = baseCreate(Ctor.prototype), |
| 5019 |
result = Ctor.apply(thisBinding, args); |
| 5020 |
|
| 5021 |
// Mimic the constructor's `return` behavior. |
| 5022 |
// See https://es5.github.io/#x13.2.2 for more details. |
| 5023 |
return isObject(result) ? result : thisBinding; |
| 5024 |
}; |
| 5025 |
} |
| 5026 |
|
| 5027 |
/** |
| 5028 |
* Creates a function that wraps `func` to enable currying. |
| 5029 |
* |
| 5030 |
* @private |
| 5031 |
* @param {Function} func The function to wrap. |
| 5032 |
* @param {number} bitmask The bitmask flags. See `createWrap` for more details. |
| 5033 |
* @param {number} arity The arity of `func`. |
| 5034 |
* @returns {Function} Returns the new wrapped function. |
| 5035 |
*/ |
| 5036 |
function createCurry(func, bitmask, arity) { |
| 5037 |
var Ctor = createCtor(func); |
| 5038 |
|
| 5039 |
function wrapper() { |
| 5040 |
var length = arguments.length, |
| 5041 |
args = Array(length), |
| 5042 |
index = length, |
| 5043 |
placeholder = getHolder(wrapper); |
| 5044 |
|
| 5045 |
while (index--) { |
| 5046 |
args[index] = arguments[index]; |
| 5047 |
} |
| 5048 |
var holders = (length < 3 && args[0] !== placeholder && args[length - 1] !== placeholder) |
| 5049 |
? [] |
| 5050 |
: replaceHolders(args, placeholder); |
| 5051 |
|
| 5052 |
length -= holders.length; |
| 5053 |
if (length < arity) { |
| 5054 |
return createRecurry( |
| 5055 |
func, bitmask, createHybrid, wrapper.placeholder, undefined, |
| 5056 |
args, holders, undefined, undefined, arity - length); |
| 5057 |
} |
| 5058 |
var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func; |
| 5059 |
return apply(fn, this, args); |
| 5060 |
} |
| 5061 |
return wrapper; |
| 5062 |
} |
| 5063 |
|
| 5064 |
/** |
| 5065 |
* Creates a `_.find` or `_.findLast` function. |
| 5066 |
* |
| 5067 |
* @private |
| 5068 |
* @param {Function} findIndexFunc The function to find the collection index. |
| 5069 |
* @returns {Function} Returns the new find function. |
| 5070 |
*/ |
| 5071 |
function createFind(findIndexFunc) { |
| 5072 |
return function(collection, predicate, fromIndex) { |
| 5073 |
var iterable = Object(collection); |
| 5074 |
if (!isArrayLike(collection)) { |
| 5075 |
var iteratee = getIteratee(predicate, 3); |
| 5076 |
collection = keys(collection); |
| 5077 |
predicate = function(key) { return iteratee(iterable[key], key, iterable); }; |
| 5078 |
} |
| 5079 |
var index = findIndexFunc(collection, predicate, fromIndex); |
| 5080 |
return index > -1 ? iterable[iteratee ? collection[index] : index] : undefined; |
| 5081 |
}; |
| 5082 |
} |
| 5083 |
|
| 5084 |
/** |
| 5085 |
* Creates a `_.flow` or `_.flowRight` function. |
| 5086 |
* |
| 5087 |
* @private |
| 5088 |
* @param {boolean} [fromRight] Specify iterating from right to left. |
| 5089 |
* @returns {Function} Returns the new flow function. |
| 5090 |
*/ |
| 5091 |
function createFlow(fromRight) { |
| 5092 |
return flatRest(function(funcs) { |
| 5093 |
var length = funcs.length, |
| 5094 |
index = length, |
| 5095 |
prereq = LodashWrapper.prototype.thru; |
| 5096 |
|
| 5097 |
if (fromRight) { |
| 5098 |
funcs.reverse(); |
| 5099 |
} |
| 5100 |
while (index--) { |
| 5101 |
var func = funcs[index]; |
| 5102 |
if (typeof func != 'function') { |
| 5103 |
throw new TypeError(FUNC_ERROR_TEXT); |
| 5104 |
} |
| 5105 |
if (prereq && !wrapper && getFuncName(func) == 'wrapper') { |
| 5106 |
var wrapper = new LodashWrapper([], true); |
| 5107 |
} |
| 5108 |
} |
| 5109 |
index = wrapper ? index : length; |
| 5110 |
while (++index < length) { |
| 5111 |
func = funcs[index]; |
| 5112 |
|
| 5113 |
var funcName = getFuncName(func), |
| 5114 |
data = funcName == 'wrapper' ? getData(func) : undefined; |
| 5115 |
|
| 5116 |
if (data && isLaziable(data[0]) && |
| 5117 |
data[1] == (WRAP_ARY_FLAG | WRAP_CURRY_FLAG | WRAP_PARTIAL_FLAG | WRAP_REARG_FLAG) && |
| 5118 |
!data[4].length && data[9] == 1 |
| 5119 |
) { |
| 5120 |
wrapper = wrapper[getFuncName(data[0])].apply(wrapper, data[3]); |
| 5121 |
} else { |
| 5122 |
wrapper = (func.length == 1 && isLaziable(func)) |
| 5123 |
? wrapper[funcName]() |
| 5124 |
: wrapper.thru(func); |
| 5125 |
} |
| 5126 |
} |
| 5127 |
return function() { |
| 5128 |
var args = arguments, |
| 5129 |
value = args[0]; |
| 5130 |
|
| 5131 |
if (wrapper && args.length == 1 && isArray(value)) { |
| 5132 |
return wrapper.plant(value).value(); |
| 5133 |
} |
| 5134 |
var index = 0, |
| 5135 |
result = length ? funcs[index].apply(this, args) : value; |
| 5136 |
|
| 5137 |
while (++index < length) { |
| 5138 |
result = funcs[index].call(this, result); |
| 5139 |
} |
| 5140 |
return result; |
| 5141 |
}; |
| 5142 |
}); |
| 5143 |
} |
| 5144 |
|
| 5145 |
/** |
| 5146 |
* Creates a function that wraps `func` to invoke it with optional `this` |
| 5147 |
* binding of `thisArg`, partial application, and currying. |
| 5148 |
* |
| 5149 |
* @private |
| 5150 |
* @param {Function|string} func The function or method name to wrap. |
| 5151 |
* @param {number} bitmask The bitmask flags. See `createWrap` for more details. |
| 5152 |
* @param {*} [thisArg] The `this` binding of `func`. |
| 5153 |
* @param {Array} [partials] The arguments to prepend to those provided to |
| 5154 |
* the new function. |
| 5155 |
* @param {Array} [holders] The `partials` placeholder indexes. |
| 5156 |
* @param {Array} [partialsRight] The arguments to append to those provided |
| 5157 |
* to the new function. |
| 5158 |
* @param {Array} [holdersRight] The `partialsRight` placeholder indexes. |
| 5159 |
* @param {Array} [argPos] The argument positions of the new function. |
| 5160 |
* @param {number} [ary] The arity cap of `func`. |
| 5161 |
* @param {number} [arity] The arity of `func`. |
| 5162 |
* @returns {Function} Returns the new wrapped function. |
| 5163 |
*/ |
| 5164 |
function createHybrid(func, bitmask, thisArg, partials, holders, partialsRight, holdersRight, argPos, ary, arity) { |
| 5165 |
var isAry = bitmask & WRAP_ARY_FLAG, |
| 5166 |
isBind = bitmask & WRAP_BIND_FLAG, |
| 5167 |
isBindKey = bitmask & WRAP_BIND_KEY_FLAG, |
| 5168 |
isCurried = bitmask & (WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG), |
| 5169 |
isFlip = bitmask & WRAP_FLIP_FLAG, |
| 5170 |
Ctor = isBindKey ? undefined : createCtor(func); |
| 5171 |
|
| 5172 |
function wrapper() { |
| 5173 |
var length = arguments.length, |
| 5174 |
args = Array(length), |
| 5175 |
index = length; |
| 5176 |
|
| 5177 |
while (index--) { |
| 5178 |
args[index] = arguments[index]; |
| 5179 |
} |
| 5180 |
if (isCurried) { |
| 5181 |
var placeholder = getHolder(wrapper), |
| 5182 |
holdersCount = countHolders(args, placeholder); |
| 5183 |
} |
| 5184 |
if (partials) { |
| 5185 |
args = composeArgs(args, partials, holders, isCurried); |
| 5186 |
} |
| 5187 |
if (partialsRight) { |
| 5188 |
args = composeArgsRight(args, partialsRight, holdersRight, isCurried); |
| 5189 |
} |
| 5190 |
length -= holdersCount; |
| 5191 |
if (isCurried && length < arity) { |
| 5192 |
var newHolders = replaceHolders(args, placeholder); |
| 5193 |
return createRecurry( |
| 5194 |
func, bitmask, createHybrid, wrapper.placeholder, thisArg, |
| 5195 |
args, newHolders, argPos, ary, arity - length |
| 5196 |
); |
| 5197 |
} |
| 5198 |
var thisBinding = isBind ? thisArg : this, |
| 5199 |
fn = isBindKey ? thisBinding[func] : func; |
| 5200 |
|
| 5201 |
length = args.length; |
| 5202 |
if (argPos) { |
| 5203 |
args = reorder(args, argPos); |
| 5204 |
} else if (isFlip && length > 1) { |
| 5205 |
args.reverse(); |
| 5206 |
} |
| 5207 |
if (isAry && ary < length) { |
| 5208 |
args.length = ary; |
| 5209 |
} |
| 5210 |
if (this && this !== root && this instanceof wrapper) { |
| 5211 |
fn = Ctor || createCtor(fn); |
| 5212 |
} |
| 5213 |
return fn.apply(thisBinding, args); |
| 5214 |
} |
| 5215 |
return wrapper; |
| 5216 |
} |
| 5217 |
|
| 5218 |
/** |
| 5219 |
* Creates a function like `_.invertBy`. |
| 5220 |
* |
| 5221 |
* @private |
| 5222 |
* @param {Function} setter The function to set accumulator values. |
| 5223 |
* @param {Function} toIteratee The function to resolve iteratees. |
| 5224 |
* @returns {Function} Returns the new inverter function. |
| 5225 |
*/ |
| 5226 |
function createInverter(setter, toIteratee) { |
| 5227 |
return function(object, iteratee) { |
| 5228 |
return baseInverter(object, setter, toIteratee(iteratee), {}); |
| 5229 |
}; |
| 5230 |
} |
| 5231 |
|
| 5232 |
/** |
| 5233 |
* Creates a function that performs a mathematical operation on two values. |
| 5234 |
* |
| 5235 |
* @private |
| 5236 |
* @param {Function} operator The function to perform the operation. |
| 5237 |
* @param {number} [defaultValue] The value used for `undefined` arguments. |
| 5238 |
* @returns {Function} Returns the new mathematical operation function. |
| 5239 |
*/ |
| 5240 |
function createMathOperation(operator, defaultValue) { |
| 5241 |
return function(value, other) { |
| 5242 |
var result; |
| 5243 |
if (value === undefined && other === undefined) { |
| 5244 |
return defaultValue; |
| 5245 |
} |
| 5246 |
if (value !== undefined) { |
| 5247 |
result = value; |
| 5248 |
} |
| 5249 |
if (other !== undefined) { |
| 5250 |
if (result === undefined) { |
| 5251 |
return other; |
| 5252 |
} |
| 5253 |
if (typeof value == 'string' || typeof other == 'string') { |
| 5254 |
value = baseToString(value); |
| 5255 |
other = baseToString(other); |
| 5256 |
} else { |
| 5257 |
value = baseToNumber(value); |
| 5258 |
other = baseToNumber(other); |
| 5259 |
} |
| 5260 |
result = operator(value, other); |
| 5261 |
} |
| 5262 |
return result; |
| 5263 |
}; |
| 5264 |
} |
| 5265 |
|
| 5266 |
/** |
| 5267 |
* Creates a function like `_.over`. |
| 5268 |
* |
| 5269 |
* @private |
| 5270 |
* @param {Function} arrayFunc The function to iterate over iteratees. |
| 5271 |
* @returns {Function} Returns the new over function. |
| 5272 |
*/ |
| 5273 |
function createOver(arrayFunc) { |
| 5274 |
return flatRest(function(iteratees) { |
| 5275 |
iteratees = arrayMap(iteratees, baseUnary(getIteratee())); |
| 5276 |
return baseRest(function(args) { |
| 5277 |
var thisArg = this; |
| 5278 |
return arrayFunc(iteratees, function(iteratee) { |
| 5279 |
return apply(iteratee, thisArg, args); |
| 5280 |
}); |
| 5281 |
}); |
| 5282 |
}); |
| 5283 |
} |
| 5284 |
|
| 5285 |
/** |
| 5286 |
* Creates the padding for `string` based on `length`. The `chars` string |
| 5287 |
* is truncated if the number of characters exceeds `length`. |
| 5288 |
* |
| 5289 |
* @private |
| 5290 |
* @param {number} length The padding length. |
| 5291 |
* @param {string} [chars=' '] The string used as padding. |
| 5292 |
* @returns {string} Returns the padding for `string`. |
| 5293 |
*/ |
| 5294 |
function createPadding(length, chars) { |
| 5295 |
chars = chars === undefined ? ' ' : baseToString(chars); |
| 5296 |
|
| 5297 |
var charsLength = chars.length; |
| 5298 |
if (charsLength < 2) { |
| 5299 |
return charsLength ? baseRepeat(chars, length) : chars; |
| 5300 |
} |
| 5301 |
var result = baseRepeat(chars, nativeCeil(length / stringSize(chars))); |
| 5302 |
return hasUnicode(chars) |
| 5303 |
? castSlice(stringToArray(result), 0, length).join('') |
| 5304 |
: result.slice(0, length); |
| 5305 |
} |
| 5306 |
|
| 5307 |
/** |
| 5308 |
* Creates a function that wraps `func` to invoke it with the `this` binding |
| 5309 |
* of `thisArg` and `partials` prepended to the arguments it receives. |
| 5310 |
* |
| 5311 |
* @private |
| 5312 |
* @param {Function} func The function to wrap. |
| 5313 |
* @param {number} bitmask The bitmask flags. See `createWrap` for more details. |
| 5314 |
* @param {*} thisArg The `this` binding of `func`. |
| 5315 |
* @param {Array} partials The arguments to prepend to those provided to |
| 5316 |
* the new function. |
| 5317 |
* @returns {Function} Returns the new wrapped function. |
| 5318 |
*/ |
| 5319 |
function createPartial(func, bitmask, thisArg, partials) { |
| 5320 |
var isBind = bitmask & WRAP_BIND_FLAG, |
| 5321 |
Ctor = createCtor(func); |
| 5322 |
|
| 5323 |
function wrapper() { |
| 5324 |
var argsIndex = -1, |
| 5325 |
argsLength = arguments.length, |
| 5326 |
leftIndex = -1, |
| 5327 |
leftLength = partials.length, |
| 5328 |
args = Array(leftLength + argsLength), |
| 5329 |
fn = (this && this !== root && this instanceof wrapper) ? Ctor : func; |
| 5330 |
|
| 5331 |
while (++leftIndex < leftLength) { |
| 5332 |
args[leftIndex] = partials[leftIndex]; |
| 5333 |
} |
| 5334 |
while (argsLength--) { |
| 5335 |
args[leftIndex++] = arguments[++argsIndex]; |
| 5336 |
} |
| 5337 |
return apply(fn, isBind ? thisArg : this, args); |
| 5338 |
} |
| 5339 |
return wrapper; |
| 5340 |
} |
| 5341 |
|
| 5342 |
/** |
| 5343 |
* Creates a `_.range` or `_.rangeRight` function. |
| 5344 |
* |
| 5345 |
* @private |
| 5346 |
* @param {boolean} [fromRight] Specify iterating from right to left. |
| 5347 |
* @returns {Function} Returns the new range function. |
| 5348 |
*/ |
| 5349 |
function createRange(fromRight) { |
| 5350 |
return function(start, end, step) { |
| 5351 |
if (step && typeof step != 'number' && isIterateeCall(start, end, step)) { |
| 5352 |
end = step = undefined; |
| 5353 |
} |
| 5354 |
// Ensure the sign of `-0` is preserved. |
| 5355 |
start = toFinite(start); |
| 5356 |
if (end === undefined) { |
| 5357 |
end = start; |
| 5358 |
start = 0; |
| 5359 |
} else { |
| 5360 |
end = toFinite(end); |
| 5361 |
} |
| 5362 |
step = step === undefined ? (start < end ? 1 : -1) : toFinite(step); |
| 5363 |
return baseRange(start, end, step, fromRight); |
| 5364 |
}; |
| 5365 |
} |
| 5366 |
|
| 5367 |
/** |
| 5368 |
* Creates a function that performs a relational operation on two values. |
| 5369 |
* |
| 5370 |
* @private |
| 5371 |
* @param {Function} operator The function to perform the operation. |
| 5372 |
* @returns {Function} Returns the new relational operation function. |
| 5373 |
*/ |
| 5374 |
function createRelationalOperation(operator) { |
| 5375 |
return function(value, other) { |
| 5376 |
if (!(typeof value == 'string' && typeof other == 'string')) { |
| 5377 |
value = toNumber(value); |
| 5378 |
other = toNumber(other); |
| 5379 |
} |
| 5380 |
return operator(value, other); |
| 5381 |
}; |
| 5382 |
} |
| 5383 |
|
| 5384 |
/** |
| 5385 |
* Creates a function that wraps `func` to continue currying. |
| 5386 |
* |
| 5387 |
* @private |
| 5388 |
* @param {Function} func The function to wrap. |
| 5389 |
* @param {number} bitmask The bitmask flags. See `createWrap` for more details. |
| 5390 |
* @param {Function} wrapFunc The function to create the `func` wrapper. |
| 5391 |
* @param {*} placeholder The placeholder value. |
| 5392 |
* @param {*} [thisArg] The `this` binding of `func`. |
| 5393 |
* @param {Array} [partials] The arguments to prepend to those provided to |
| 5394 |
* the new function. |
| 5395 |
* @param {Array} [holders] The `partials` placeholder indexes. |
| 5396 |
* @param {Array} [argPos] The argument positions of the new function. |
| 5397 |
* @param {number} [ary] The arity cap of `func`. |
| 5398 |
* @param {number} [arity] The arity of `func`. |
| 5399 |
* @returns {Function} Returns the new wrapped function. |
| 5400 |
*/ |
| 5401 |
function createRecurry(func, bitmask, wrapFunc, placeholder, thisArg, partials, holders, argPos, ary, arity) { |
| 5402 |
var isCurry = bitmask & WRAP_CURRY_FLAG, |
| 5403 |
newHolders = isCurry ? holders : undefined, |
| 5404 |
newHoldersRight = isCurry ? undefined : holders, |
| 5405 |
newPartials = isCurry ? partials : undefined, |
| 5406 |
newPartialsRight = isCurry ? undefined : partials; |
| 5407 |
|
| 5408 |
bitmask |= (isCurry ? WRAP_PARTIAL_FLAG : WRAP_PARTIAL_RIGHT_FLAG); |
| 5409 |
bitmask &= ~(isCurry ? WRAP_PARTIAL_RIGHT_FLAG : WRAP_PARTIAL_FLAG); |
| 5410 |
|
| 5411 |
if (!(bitmask & WRAP_CURRY_BOUND_FLAG)) { |
| 5412 |
bitmask &= ~(WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG); |
| 5413 |
} |
| 5414 |
var newData = [ |
| 5415 |
func, bitmask, thisArg, newPartials, newHolders, newPartialsRight, |
| 5416 |
newHoldersRight, argPos, ary, arity |
| 5417 |
]; |
| 5418 |
|
| 5419 |
var result = wrapFunc.apply(undefined, newData); |
| 5420 |
if (isLaziable(func)) { |
| 5421 |
setData(result, newData); |
| 5422 |
} |
| 5423 |
result.placeholder = placeholder; |
| 5424 |
return setWrapToString(result, func, bitmask); |
| 5425 |
} |
| 5426 |
|
| 5427 |
/** |
| 5428 |
* Creates a function like `_.round`. |
| 5429 |
* |
| 5430 |
* @private |
| 5431 |
* @param {string} methodName The name of the `Math` method to use when rounding. |
| 5432 |
* @returns {Function} Returns the new round function. |
| 5433 |
*/ |
| 5434 |
function createRound(methodName) { |
| 5435 |
var func = Math[methodName]; |
| 5436 |
return function(number, precision) { |
| 5437 |
number = toNumber(number); |
| 5438 |
precision = precision == null ? 0 : nativeMin(toInteger(precision), 292); |
| 5439 |
if (precision && nativeIsFinite(number)) { |
| 5440 |
// Shift with exponential notation to avoid floating-point issues. |
| 5441 |
// See [MDN](https://mdn.io/round#Examples) for more details. |
| 5442 |
var pair = (toString(number) + 'e').split('e'), |
| 5443 |
value = func(pair[0] + 'e' + (+pair[1] + precision)); |
| 5444 |
|
| 5445 |
pair = (toString(value) + 'e').split('e'); |
| 5446 |
return +(pair[0] + 'e' + (+pair[1] - precision)); |
| 5447 |
} |
| 5448 |
return func(number); |
| 5449 |
}; |
| 5450 |
} |
| 5451 |
|
| 5452 |
/** |
| 5453 |
* Creates a set object of `values`. |
| 5454 |
* |
| 5455 |
* @private |
| 5456 |
* @param {Array} values The values to add to the set. |
| 5457 |
* @returns {Object} Returns the new set. |
| 5458 |
*/ |
| 5459 |
var createSet = !(Set && (1 / setToArray(new Set([,-0]))[1]) == INFINITY) ? noop : function(values) { |
| 5460 |
return new Set(values); |
| 5461 |
}; |
| 5462 |
|
| 5463 |
/** |
| 5464 |
* Creates a `_.toPairs` or `_.toPairsIn` function. |
| 5465 |
* |
| 5466 |
* @private |
| 5467 |
* @param {Function} keysFunc The function to get the keys of a given object. |
| 5468 |
* @returns {Function} Returns the new pairs function. |
| 5469 |
*/ |
| 5470 |
function createToPairs(keysFunc) { |
| 5471 |
return function(object) { |
| 5472 |
var tag = getTag(object); |
| 5473 |
if (tag == mapTag) { |
| 5474 |
return mapToArray(object); |
| 5475 |
} |
| 5476 |
if (tag == setTag) { |
| 5477 |
return setToPairs(object); |
| 5478 |
} |
| 5479 |
return baseToPairs(object, keysFunc(object)); |
| 5480 |
}; |
| 5481 |
} |
| 5482 |
|
| 5483 |
/** |
| 5484 |
* Creates a function that either curries or invokes `func` with optional |
| 5485 |
* `this` binding and partially applied arguments. |
| 5486 |
* |
| 5487 |
* @private |
| 5488 |
* @param {Function|string} func The function or method name to wrap. |
| 5489 |
* @param {number} bitmask The bitmask flags. |
| 5490 |
* 1 - `_.bind` |
| 5491 |
* 2 - `_.bindKey` |
| 5492 |
* 4 - `_.curry` or `_.curryRight` of a bound function |
| 5493 |
* 8 - `_.curry` |
| 5494 |
* 16 - `_.curryRight` |
| 5495 |
* 32 - `_.partial` |
| 5496 |
* 64 - `_.partialRight` |
| 5497 |
* 128 - `_.rearg` |
| 5498 |
* 256 - `_.ary` |
| 5499 |
* 512 - `_.flip` |
| 5500 |
* @param {*} [thisArg] The `this` binding of `func`. |
| 5501 |
* @param {Array} [partials] The arguments to be partially applied. |
| 5502 |
* @param {Array} [holders] The `partials` placeholder indexes. |
| 5503 |
* @param {Array} [argPos] The argument positions of the new function. |
| 5504 |
* @param {number} [ary] The arity cap of `func`. |
| 5505 |
* @param {number} [arity] The arity of `func`. |
| 5506 |
* @returns {Function} Returns the new wrapped function. |
| 5507 |
*/ |
| 5508 |
function createWrap(func, bitmask, thisArg, partials, holders, argPos, ary, arity) { |
| 5509 |
var isBindKey = bitmask & WRAP_BIND_KEY_FLAG; |
| 5510 |
if (!isBindKey && typeof func != 'function') { |
| 5511 |
throw new TypeError(FUNC_ERROR_TEXT); |
| 5512 |
} |
| 5513 |
var length = partials ? partials.length : 0; |
| 5514 |
if (!length) { |
| 5515 |
bitmask &= ~(WRAP_PARTIAL_FLAG | WRAP_PARTIAL_RIGHT_FLAG); |
| 5516 |
partials = holders = undefined; |
| 5517 |
} |
| 5518 |
ary = ary === undefined ? ary : nativeMax(toInteger(ary), 0); |
| 5519 |
arity = arity === undefined ? arity : toInteger(arity); |
| 5520 |
length -= holders ? holders.length : 0; |
| 5521 |
|
| 5522 |
if (bitmask & WRAP_PARTIAL_RIGHT_FLAG) { |
| 5523 |
var partialsRight = partials, |
| 5524 |
holdersRight = holders; |
| 5525 |
|
| 5526 |
partials = holders = undefined; |
| 5527 |
} |
| 5528 |
var data = isBindKey ? undefined : getData(func); |
| 5529 |
|
| 5530 |
var newData = [ |
| 5531 |
func, bitmask, thisArg, partials, holders, partialsRight, holdersRight, |
| 5532 |
argPos, ary, arity |
| 5533 |
]; |
| 5534 |
|
| 5535 |
if (data) { |
| 5536 |
mergeData(newData, data); |
| 5537 |
} |
| 5538 |
func = newData[0]; |
| 5539 |
bitmask = newData[1]; |
| 5540 |
thisArg = newData[2]; |
| 5541 |
partials = newData[3]; |
| 5542 |
holders = newData[4]; |
| 5543 |
arity = newData[9] = newData[9] === undefined |
| 5544 |
? (isBindKey ? 0 : func.length) |
| 5545 |
: nativeMax(newData[9] - length, 0); |
| 5546 |
|
| 5547 |
if (!arity && bitmask & (WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG)) { |
| 5548 |
bitmask &= ~(WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG); |
| 5549 |
} |
| 5550 |
if (!bitmask || bitmask == WRAP_BIND_FLAG) { |
| 5551 |
var result = createBind(func, bitmask, thisArg); |
| 5552 |
} else if (bitmask == WRAP_CURRY_FLAG || bitmask == WRAP_CURRY_RIGHT_FLAG) { |
| 5553 |
result = createCurry(func, bitmask, arity); |
| 5554 |
} else if ((bitmask == WRAP_PARTIAL_FLAG || bitmask == (WRAP_BIND_FLAG | WRAP_PARTIAL_FLAG)) && !holders.length) { |
| 5555 |
result = createPartial(func, bitmask, thisArg, partials); |
| 5556 |
} else { |
| 5557 |
result = createHybrid.apply(undefined, newData); |
| 5558 |
} |
| 5559 |
var setter = data ? baseSetData : setData; |
| 5560 |
return setWrapToString(setter(result, newData), func, bitmask); |
| 5561 |
} |
| 5562 |
|
| 5563 |
/** |
| 5564 |
* Used by `_.defaults` to customize its `_.assignIn` use to assign properties |
| 5565 |
* of source objects to the destination object for all destination properties |
| 5566 |
* that resolve to `undefined`. |
| 5567 |
* |
| 5568 |
* @private |
| 5569 |
* @param {*} objValue The destination value. |
| 5570 |
* @param {*} srcValue The source value. |
| 5571 |
* @param {string} key The key of the property to assign. |
| 5572 |
* @param {Object} object The parent object of `objValue`. |
| 5573 |
* @returns {*} Returns the value to assign. |
| 5574 |
*/ |
| 5575 |
function customDefaultsAssignIn(objValue, srcValue, key, object) { |
| 5576 |
if (objValue === undefined || |
| 5577 |
(eq(objValue, objectProto[key]) && !hasOwnProperty.call(object, key))) { |
| 5578 |
return srcValue; |
| 5579 |
} |
| 5580 |
return objValue; |
| 5581 |
} |
| 5582 |
|
| 5583 |
/** |
| 5584 |
* Used by `_.defaultsDeep` to customize its `_.merge` use to merge source |
| 5585 |
* objects into destination objects that are passed thru. |
| 5586 |
* |
| 5587 |
* @private |
| 5588 |
* @param {*} objValue The destination value. |
| 5589 |
* @param {*} srcValue The source value. |
| 5590 |
* @param {string} key The key of the property to merge. |
| 5591 |
* @param {Object} object The parent object of `objValue`. |
| 5592 |
* @param {Object} source The parent object of `srcValue`. |
| 5593 |
* @param {Object} [stack] Tracks traversed source values and their merged |
| 5594 |
* counterparts. |
| 5595 |
* @returns {*} Returns the value to assign. |
| 5596 |
*/ |
| 5597 |
function customDefaultsMerge(objValue, srcValue, key, object, source, stack) { |
| 5598 |
if (isObject(objValue) && isObject(srcValue)) { |
| 5599 |
// Recursively merge objects and arrays (susceptible to call stack limits). |
| 5600 |
stack.set(srcValue, objValue); |
| 5601 |
baseMerge(objValue, srcValue, undefined, customDefaultsMerge, stack); |
| 5602 |
stack['delete'](srcValue); |
| 5603 |
} |
| 5604 |
return objValue; |
| 5605 |
} |
| 5606 |
|
| 5607 |
/** |
| 5608 |
* Used by `_.omit` to customize its `_.cloneDeep` use to only clone plain |
| 5609 |
* objects. |
| 5610 |
* |
| 5611 |
* @private |
| 5612 |
* @param {*} value The value to inspect. |
| 5613 |
* @param {string} key The key of the property to inspect. |
| 5614 |
* @returns {*} Returns the uncloned value or `undefined` to defer cloning to `_.cloneDeep`. |
| 5615 |
*/ |
| 5616 |
function customOmitClone(value) { |
| 5617 |
return isPlainObject(value) ? undefined : value; |
| 5618 |
} |
| 5619 |
|
| 5620 |
/** |
| 5621 |
* A specialized version of `baseIsEqualDeep` for arrays with support for |
| 5622 |
* partial deep comparisons. |
| 5623 |
* |
| 5624 |
* @private |
| 5625 |
* @param {Array} array The array to compare. |
| 5626 |
* @param {Array} other The other array to compare. |
| 5627 |
* @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details. |
| 5628 |
* @param {Function} customizer The function to customize comparisons. |
| 5629 |
* @param {Function} equalFunc The function to determine equivalents of values. |
| 5630 |
* @param {Object} stack Tracks traversed `array` and `other` objects. |
| 5631 |
* @returns {boolean} Returns `true` if the arrays are equivalent, else `false`. |
| 5632 |
*/ |
| 5633 |
function equalArrays(array, other, bitmask, customizer, equalFunc, stack) { |
| 5634 |
var isPartial = bitmask & COMPARE_PARTIAL_FLAG, |
| 5635 |
arrLength = array.length, |
| 5636 |
othLength = other.length; |
| 5637 |
|
| 5638 |
if (arrLength != othLength && !(isPartial && othLength > arrLength)) { |
| 5639 |
return false; |
| 5640 |
} |
| 5641 |
// Check that cyclic values are equal. |
| 5642 |
var arrStacked = stack.get(array); |
| 5643 |
var othStacked = stack.get(other); |
| 5644 |
if (arrStacked && othStacked) { |
| 5645 |
return arrStacked == other && othStacked == array; |
| 5646 |
} |
| 5647 |
var index = -1, |
| 5648 |
result = true, |
| 5649 |
seen = (bitmask & COMPARE_UNORDERED_FLAG) ? new SetCache : undefined; |
| 5650 |
|
| 5651 |
stack.set(array, other); |
| 5652 |
stack.set(other, array); |
| 5653 |
|
| 5654 |
// Ignore non-index properties. |
| 5655 |
while (++index < arrLength) { |
| 5656 |
var arrValue = array[index], |
| 5657 |
othValue = other[index]; |
| 5658 |
|
| 5659 |
if (customizer) { |
| 5660 |
var compared = isPartial |
| 5661 |
? customizer(othValue, arrValue, index, other, array, stack) |
| 5662 |
: customizer(arrValue, othValue, index, array, other, stack); |
| 5663 |
} |
| 5664 |
if (compared !== undefined) { |
| 5665 |
if (compared) { |
| 5666 |
continue; |
| 5667 |
} |
| 5668 |
result = false; |
| 5669 |
break; |
| 5670 |
} |
| 5671 |
// Recursively compare arrays (susceptible to call stack limits). |
| 5672 |
if (seen) { |
| 5673 |
if (!arraySome(other, function(othValue, othIndex) { |
| 5674 |
if (!cacheHas(seen, othIndex) && |
| 5675 |
(arrValue === othValue || equalFunc(arrValue, othValue, bitmask, customizer, stack))) { |
| 5676 |
return seen.push(othIndex); |
| 5677 |
} |
| 5678 |
})) { |
| 5679 |
result = false; |
| 5680 |
break; |
| 5681 |
} |
| 5682 |
} else if (!( |
| 5683 |
arrValue === othValue || |
| 5684 |
equalFunc(arrValue, othValue, bitmask, customizer, stack) |
| 5685 |
)) { |
| 5686 |
result = false; |
| 5687 |
break; |
| 5688 |
} |
| 5689 |
} |
| 5690 |
stack['delete'](array); |
| 5691 |
stack['delete'](other); |
| 5692 |
return result; |
| 5693 |
} |
| 5694 |
|
| 5695 |
/** |
| 5696 |
* A specialized version of `baseIsEqualDeep` for comparing objects of |
| 5697 |
* the same `toStringTag`. |
| 5698 |
* |
| 5699 |
* **Note:** This function only supports comparing values with tags of |
| 5700 |
* `Boolean`, `Date`, `Error`, `Number`, `RegExp`, or `String`. |
| 5701 |
* |
| 5702 |
* @private |
| 5703 |
* @param {Object} object The object to compare. |
| 5704 |
* @param {Object} other The other object to compare. |
| 5705 |
* @param {string} tag The `toStringTag` of the objects to compare. |
| 5706 |
* @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details. |
| 5707 |
* @param {Function} customizer The function to customize comparisons. |
| 5708 |
* @param {Function} equalFunc The function to determine equivalents of values. |
| 5709 |
* @param {Object} stack Tracks traversed `object` and `other` objects. |
| 5710 |
* @returns {boolean} Returns `true` if the objects are equivalent, else `false`. |
| 5711 |
*/ |
| 5712 |
function equalByTag(object, other, tag, bitmask, customizer, equalFunc, stack) { |
| 5713 |
switch (tag) { |
| 5714 |
case dataViewTag: |
| 5715 |
if ((object.byteLength != other.byteLength) || |
| 5716 |
(object.byteOffset != other.byteOffset)) { |
| 5717 |
return false; |
| 5718 |
} |
| 5719 |
object = object.buffer; |
| 5720 |
other = other.buffer; |
| 5721 |
|
| 5722 |
case arrayBufferTag: |
| 5723 |
if ((object.byteLength != other.byteLength) || |
| 5724 |
!equalFunc(new Uint8Array(object), new Uint8Array(other))) { |
| 5725 |
return false; |
| 5726 |
} |
| 5727 |
return true; |
| 5728 |
|
| 5729 |
case boolTag: |
| 5730 |
case dateTag: |
| 5731 |
case numberTag: |
| 5732 |
// Coerce booleans to `1` or `0` and dates to milliseconds. |
| 5733 |
// Invalid dates are coerced to `NaN`. |
| 5734 |
return eq(+object, +other); |
| 5735 |
|
| 5736 |
case errorTag: |
| 5737 |
return object.name == other.name && object.message == other.message; |
| 5738 |
|
| 5739 |
case regexpTag: |
| 5740 |
case stringTag: |
| 5741 |
// Coerce regexes to strings and treat strings, primitives and objects, |
| 5742 |
// as equal. See http://www.ecma-international.org/ecma-262/7.0/#sec-regexp.prototype.tostring |
| 5743 |
// for more details. |
| 5744 |
return object == (other + ''); |
| 5745 |
|
| 5746 |
case mapTag: |
| 5747 |
var convert = mapToArray; |
| 5748 |
|
| 5749 |
case setTag: |
| 5750 |
var isPartial = bitmask & COMPARE_PARTIAL_FLAG; |
| 5751 |
convert || (convert = setToArray); |
| 5752 |
|
| 5753 |
if (object.size != other.size && !isPartial) { |
| 5754 |
return false; |
| 5755 |
} |
| 5756 |
// Assume cyclic values are equal. |
| 5757 |
var stacked = stack.get(object); |
| 5758 |
if (stacked) { |
| 5759 |
return stacked == other; |
| 5760 |
} |
| 5761 |
bitmask |= COMPARE_UNORDERED_FLAG; |
| 5762 |
|
| 5763 |
// Recursively compare objects (susceptible to call stack limits). |
| 5764 |
stack.set(object, other); |
| 5765 |
var result = equalArrays(convert(object), convert(other), bitmask, customizer, equalFunc, stack); |
| 5766 |
stack['delete'](object); |
| 5767 |
return result; |
| 5768 |
|
| 5769 |
case symbolTag: |
| 5770 |
if (symbolValueOf) { |
| 5771 |
return symbolValueOf.call(object) == symbolValueOf.call(other); |
| 5772 |
} |
| 5773 |
} |
| 5774 |
return false; |
| 5775 |
} |
| 5776 |
|
| 5777 |
/** |
| 5778 |
* A specialized version of `baseIsEqualDeep` for objects with support for |
| 5779 |
* partial deep comparisons. |
| 5780 |
* |
| 5781 |
* @private |
| 5782 |
* @param {Object} object The object to compare. |
| 5783 |
* @param {Object} other The other object to compare. |
| 5784 |
* @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details. |
| 5785 |
* @param {Function} customizer The function to customize comparisons. |
| 5786 |
* @param {Function} equalFunc The function to determine equivalents of values. |
| 5787 |
* @param {Object} stack Tracks traversed `object` and `other` objects. |
| 5788 |
* @returns {boolean} Returns `true` if the objects are equivalent, else `false`. |
| 5789 |
*/ |
| 5790 |
function equalObjects(object, other, bitmask, customizer, equalFunc, stack) { |
| 5791 |
var isPartial = bitmask & COMPARE_PARTIAL_FLAG, |
| 5792 |
objProps = getAllKeys(object), |
| 5793 |
objLength = objProps.length, |
| 5794 |
othProps = getAllKeys(other), |
| 5795 |
othLength = othProps.length; |
| 5796 |
|
| 5797 |
if (objLength != othLength && !isPartial) { |
| 5798 |
return false; |
| 5799 |
} |
| 5800 |
var index = objLength; |
| 5801 |
while (index--) { |
| 5802 |
var key = objProps[index]; |
| 5803 |
if (!(isPartial ? key in other : hasOwnProperty.call(other, key))) { |
| 5804 |
return false; |
| 5805 |
} |
| 5806 |
} |
| 5807 |
// Check that cyclic values are equal. |
| 5808 |
var objStacked = stack.get(object); |
| 5809 |
var othStacked = stack.get(other); |
| 5810 |
if (objStacked && othStacked) { |
| 5811 |
return objStacked == other && othStacked == object; |
| 5812 |
} |
| 5813 |
var result = true; |
| 5814 |
stack.set(object, other); |
| 5815 |
stack.set(other, object); |
| 5816 |
|
| 5817 |
var skipCtor = isPartial; |
| 5818 |
while (++index < objLength) { |
| 5819 |
key = objProps[index]; |
| 5820 |
var objValue = object[key], |
| 5821 |
othValue = other[key]; |
| 5822 |
|
| 5823 |
if (customizer) { |
| 5824 |
var compared = isPartial |
| 5825 |
? customizer(othValue, objValue, key, other, object, stack) |
| 5826 |
: customizer(objValue, othValue, key, object, other, stack); |
| 5827 |
} |
| 5828 |
// Recursively compare objects (susceptible to call stack limits). |
| 5829 |
if (!(compared === undefined |
| 5830 |
? (objValue === othValue || equalFunc(objValue, othValue, bitmask, customizer, stack)) |
| 5831 |
: compared |
| 5832 |
)) { |
| 5833 |
result = false; |
| 5834 |
break; |
| 5835 |
} |
| 5836 |
skipCtor || (skipCtor = key == 'constructor'); |
| 5837 |
} |
| 5838 |
if (result && !skipCtor) { |
| 5839 |
var objCtor = object.constructor, |
| 5840 |
othCtor = other.constructor; |
| 5841 |
|
| 5842 |
// Non `Object` object instances with different constructors are not equal. |
| 5843 |
if (objCtor != othCtor && |
| 5844 |
('constructor' in object && 'constructor' in other) && |
| 5845 |
!(typeof objCtor == 'function' && objCtor instanceof objCtor && |
| 5846 |
typeof othCtor == 'function' && othCtor instanceof othCtor)) { |
| 5847 |
result = false; |
| 5848 |
} |
| 5849 |
} |
| 5850 |
stack['delete'](object); |
| 5851 |
stack['delete'](other); |
| 5852 |
return result; |
| 5853 |
} |
| 5854 |
|
| 5855 |
/** |
| 5856 |
* A specialized version of `baseRest` which flattens the rest array. |
| 5857 |
* |
| 5858 |
* @private |
| 5859 |
* @param {Function} func The function to apply a rest parameter to. |
| 5860 |
* @returns {Function} Returns the new function. |
| 5861 |
*/ |
| 5862 |
function flatRest(func) { |
| 5863 |
return setToString(overRest(func, undefined, flatten), func + ''); |
| 5864 |
} |
| 5865 |
|
| 5866 |
/** |
| 5867 |
* Creates an array of own enumerable property names and symbols of `object`. |
| 5868 |
* |
| 5869 |
* @private |
| 5870 |
* @param {Object} object The object to query. |
| 5871 |
* @returns {Array} Returns the array of property names and symbols. |
| 5872 |
*/ |
| 5873 |
function getAllKeys(object) { |
| 5874 |
return baseGetAllKeys(object, keys, getSymbols); |
| 5875 |
} |
| 5876 |
|
| 5877 |
/** |
| 5878 |
* Creates an array of own and inherited enumerable property names and |
| 5879 |
* symbols of `object`. |
| 5880 |
* |
| 5881 |
* @private |
| 5882 |
* @param {Object} object The object to query. |
| 5883 |
* @returns {Array} Returns the array of property names and symbols. |
| 5884 |
*/ |
| 5885 |
function getAllKeysIn(object) { |
| 5886 |
return baseGetAllKeys(object, keysIn, getSymbolsIn); |
| 5887 |
} |
| 5888 |
|
| 5889 |
/** |
| 5890 |
* Gets metadata for `func`. |
| 5891 |
* |
| 5892 |
* @private |
| 5893 |
* @param {Function} func The function to query. |
| 5894 |
* @returns {*} Returns the metadata for `func`. |
| 5895 |
*/ |
| 5896 |
var getData = !metaMap ? noop : function(func) { |
| 5897 |
return metaMap.get(func); |
| 5898 |
}; |
| 5899 |
|
| 5900 |
/** |
| 5901 |
* Gets the name of `func`. |
| 5902 |
* |
| 5903 |
* @private |
| 5904 |
* @param {Function} func The function to query. |
| 5905 |
* @returns {string} Returns the function name. |
| 5906 |
*/ |
| 5907 |
function getFuncName(func) { |
| 5908 |
var result = (func.name + ''), |
| 5909 |
array = realNames[result], |
| 5910 |
length = hasOwnProperty.call(realNames, result) ? array.length : 0; |
| 5911 |
|
| 5912 |
while (length--) { |
| 5913 |
var data = array[length], |
| 5914 |
otherFunc = data.func; |
| 5915 |
if (otherFunc == null || otherFunc == func) { |
| 5916 |
return data.name; |
| 5917 |
} |
| 5918 |
} |
| 5919 |
return result; |
| 5920 |
} |
| 5921 |
|
| 5922 |
/** |
| 5923 |
* Gets the argument placeholder value for `func`. |
| 5924 |
* |
| 5925 |
* @private |
| 5926 |
* @param {Function} func The function to inspect. |
| 5927 |
* @returns {*} Returns the placeholder value. |
| 5928 |
*/ |
| 5929 |
function getHolder(func) { |
| 5930 |
var object = hasOwnProperty.call(lodash, 'placeholder') ? lodash : func; |
| 5931 |
return object.placeholder; |
| 5932 |
} |
| 5933 |
|
| 5934 |
/** |
| 5935 |
* Gets the appropriate "iteratee" function. If `_.iteratee` is customized, |
| 5936 |
* this function returns the custom method, otherwise it returns `baseIteratee`. |
| 5937 |
* If arguments are provided, the chosen function is invoked with them and |
| 5938 |
* its result is returned. |
| 5939 |
* |
| 5940 |
* @private |
| 5941 |
* @param {*} [value] The value to convert to an iteratee. |
| 5942 |
* @param {number} [arity] The arity of the created iteratee. |
| 5943 |
* @returns {Function} Returns the chosen function or its result. |
| 5944 |
*/ |
| 5945 |
function getIteratee() { |
| 5946 |
var result = lodash.iteratee || iteratee; |
| 5947 |
result = result === iteratee ? baseIteratee : result; |
| 5948 |
return arguments.length ? result(arguments[0], arguments[1]) : result; |
| 5949 |
} |
| 5950 |
|
| 5951 |
/** |
| 5952 |
* Gets the data for `map`. |
| 5953 |
* |
| 5954 |
* @private |
| 5955 |
* @param {Object} map The map to query. |
| 5956 |
* @param {string} key The reference key. |
| 5957 |
* @returns {*} Returns the map data. |
| 5958 |
*/ |
| 5959 |
function getMapData(map, key) { |
| 5960 |
var data = map.__data__; |
| 5961 |
return isKeyable(key) |
| 5962 |
? data[typeof key == 'string' ? 'string' : 'hash'] |
| 5963 |
: data.map; |
| 5964 |
} |
| 5965 |
|
| 5966 |
/** |
| 5967 |
* Gets the property names, values, and compare flags of `object`. |
| 5968 |
* |
| 5969 |
* @private |
| 5970 |
* @param {Object} object The object to query. |
| 5971 |
* @returns {Array} Returns the match data of `object`. |
| 5972 |
*/ |
| 5973 |
function getMatchData(object) { |
| 5974 |
var result = keys(object), |
| 5975 |
length = result.length; |
| 5976 |
|
| 5977 |
while (length--) { |
| 5978 |
var key = result[length], |
| 5979 |
value = object[key]; |
| 5980 |
|
| 5981 |
result[length] = [key, value, isStrictComparable(value)]; |
| 5982 |
} |
| 5983 |
return result; |
| 5984 |
} |
| 5985 |
|
| 5986 |
/** |
| 5987 |
* Gets the native function at `key` of `object`. |
| 5988 |
* |
| 5989 |
* @private |
| 5990 |
* @param {Object} object The object to query. |
| 5991 |
* @param {string} key The key of the method to get. |
| 5992 |
* @returns {*} Returns the function if it's native, else `undefined`. |
| 5993 |
*/ |
| 5994 |
function getNative(object, key) { |
| 5995 |
var value = getValue(object, key); |
| 5996 |
return baseIsNative(value) ? value : undefined; |
| 5997 |
} |
| 5998 |
|
| 5999 |
/** |
| 6000 |
* A specialized version of `baseGetTag` which ignores `Symbol.toStringTag` values. |
| 6001 |
* |
| 6002 |
* @private |
| 6003 |
* @param {*} value The value to query. |
| 6004 |
* @returns {string} Returns the raw `toStringTag`. |
| 6005 |
*/ |
| 6006 |
function getRawTag(value) { |
| 6007 |
var isOwn = hasOwnProperty.call(value, symToStringTag), |
| 6008 |
tag = value[symToStringTag]; |
| 6009 |
|
| 6010 |
try { |
| 6011 |
value[symToStringTag] = undefined; |
| 6012 |
var unmasked = true; |
| 6013 |
} catch (e) {} |
| 6014 |
|
| 6015 |
var result = nativeObjectToString.call(value); |
| 6016 |
if (unmasked) { |
| 6017 |
if (isOwn) { |
| 6018 |
value[symToStringTag] = tag; |
| 6019 |
} else { |
| 6020 |
delete value[symToStringTag]; |
| 6021 |
} |
| 6022 |
} |
| 6023 |
return result; |
| 6024 |
} |
| 6025 |
|
| 6026 |
/** |
| 6027 |
* Creates an array of the own enumerable symbols of `object`. |
| 6028 |
* |
| 6029 |
* @private |
| 6030 |
* @param {Object} object The object to query. |
| 6031 |
* @returns {Array} Returns the array of symbols. |
| 6032 |
*/ |
| 6033 |
var getSymbols = !nativeGetSymbols ? stubArray : function(object) { |
| 6034 |
if (object == null) { |
| 6035 |
return []; |
| 6036 |
} |
| 6037 |
object = Object(object); |
| 6038 |
return arrayFilter(nativeGetSymbols(object), function(symbol) { |
| 6039 |
return propertyIsEnumerable.call(object, symbol); |
| 6040 |
}); |
| 6041 |
}; |
| 6042 |
|
| 6043 |
/** |
| 6044 |
* Creates an array of the own and inherited enumerable symbols of `object`. |
| 6045 |
* |
| 6046 |
* @private |
| 6047 |
* @param {Object} object The object to query. |
| 6048 |
* @returns {Array} Returns the array of symbols. |
| 6049 |
*/ |
| 6050 |
var getSymbolsIn = !nativeGetSymbols ? stubArray : function(object) { |
| 6051 |
var result = []; |
| 6052 |
while (object) { |
| 6053 |
arrayPush(result, getSymbols(object)); |
| 6054 |
object = getPrototype(object); |
| 6055 |
} |
| 6056 |
return result; |
| 6057 |
}; |
| 6058 |
|
| 6059 |
/** |
| 6060 |
* Gets the `toStringTag` of `value`. |
| 6061 |
* |
| 6062 |
* @private |
| 6063 |
* @param {*} value The value to query. |
| 6064 |
* @returns {string} Returns the `toStringTag`. |
| 6065 |
*/ |
| 6066 |
var getTag = baseGetTag; |
| 6067 |
|
| 6068 |
// Fallback for data views, maps, sets, and weak maps in IE 11 and promises in Node.js < 6. |
| 6069 |
if ((DataView && getTag(new DataView(new ArrayBuffer(1))) != dataViewTag) || |
| 6070 |
(Map && getTag(new Map) != mapTag) || |
| 6071 |
(Promise && getTag(Promise.resolve()) != promiseTag) || |
| 6072 |
(Set && getTag(new Set) != setTag) || |
| 6073 |
(WeakMap && getTag(new WeakMap) != weakMapTag)) { |
| 6074 |
getTag = function(value) { |
| 6075 |
var result = baseGetTag(value), |
| 6076 |
Ctor = result == objectTag ? value.constructor : undefined, |
| 6077 |
ctorString = Ctor ? toSource(Ctor) : ''; |
| 6078 |
|
| 6079 |
if (ctorString) { |
| 6080 |
switch (ctorString) { |
| 6081 |
case dataViewCtorString: return dataViewTag; |
| 6082 |
case mapCtorString: return mapTag; |
| 6083 |
case promiseCtorString: return promiseTag; |
| 6084 |
case setCtorString: return setTag; |
| 6085 |
case weakMapCtorString: return weakMapTag; |
| 6086 |
} |
| 6087 |
} |
| 6088 |
return result; |
| 6089 |
}; |
| 6090 |
} |
| 6091 |
|
| 6092 |
/** |
| 6093 |
* Gets the view, applying any `transforms` to the `start` and `end` positions. |
| 6094 |
* |
| 6095 |
* @private |
| 6096 |
* @param {number} start The start of the view. |
| 6097 |
* @param {number} end The end of the view. |
| 6098 |
* @param {Array} transforms The transformations to apply to the view. |
| 6099 |
* @returns {Object} Returns an object containing the `start` and `end` |
| 6100 |
* positions of the view. |
| 6101 |
*/ |
| 6102 |
function getView(start, end, transforms) { |
| 6103 |
var index = -1, |
| 6104 |
length = transforms.length; |
| 6105 |
|
| 6106 |
while (++index < length) { |
| 6107 |
var data = transforms[index], |
| 6108 |
size = data.size; |
| 6109 |
|
| 6110 |
switch (data.type) { |
| 6111 |
case 'drop': start += size; break; |
| 6112 |
case 'dropRight': end -= size; break; |
| 6113 |
case 'take': end = nativeMin(end, start + size); break; |
| 6114 |
case 'takeRight': start = nativeMax(start, end - size); break; |
| 6115 |
} |
| 6116 |
} |
| 6117 |
return { 'start': start, 'end': end }; |
| 6118 |
} |
| 6119 |
|
| 6120 |
/** |
| 6121 |
* Extracts wrapper details from the `source` body comment. |
| 6122 |
* |
| 6123 |
* @private |
| 6124 |
* @param {string} source The source to inspect. |
| 6125 |
* @returns {Array} Returns the wrapper details. |
| 6126 |
*/ |
| 6127 |
function getWrapDetails(source) { |
| 6128 |
var match = source.match(reWrapDetails); |
| 6129 |
return match ? match[1].split(reSplitDetails) : []; |
| 6130 |
} |
| 6131 |
|
| 6132 |
/** |
| 6133 |
* Checks if `path` exists on `object`. |
| 6134 |
* |
| 6135 |
* @private |
| 6136 |
* @param {Object} object The object to query. |
| 6137 |
* @param {Array|string} path The path to check. |
| 6138 |
* @param {Function} hasFunc The function to check properties. |
| 6139 |
* @returns {boolean} Returns `true` if `path` exists, else `false`. |
| 6140 |
*/ |
| 6141 |
function hasPath(object, path, hasFunc) { |
| 6142 |
path = castPath(path, object); |
| 6143 |
|
| 6144 |
var index = -1, |
| 6145 |
length = path.length, |
| 6146 |
result = false; |
| 6147 |
|
| 6148 |
while (++index < length) { |
| 6149 |
var key = toKey(path[index]); |
| 6150 |
if (!(result = object != null && hasFunc(object, key))) { |
| 6151 |
break; |
| 6152 |
} |
| 6153 |
object = object[key]; |
| 6154 |
} |
| 6155 |
if (result || ++index != length) { |
| 6156 |
return result; |
| 6157 |
} |
| 6158 |
length = object == null ? 0 : object.length; |
| 6159 |
return !!length && isLength(length) && isIndex(key, length) && |
| 6160 |
(isArray(object) || isArguments(object)); |
| 6161 |
} |
| 6162 |
|
| 6163 |
/** |
| 6164 |
* Initializes an array clone. |
| 6165 |
* |
| 6166 |
* @private |
| 6167 |
* @param {Array} array The array to clone. |
| 6168 |
* @returns {Array} Returns the initialized clone. |
| 6169 |
*/ |
| 6170 |
function initCloneArray(array) { |
| 6171 |
var length = array.length, |
| 6172 |
result = new array.constructor(length); |
| 6173 |
|
| 6174 |
// Add properties assigned by `RegExp#exec`. |
| 6175 |
if (length && typeof array[0] == 'string' && hasOwnProperty.call(array, 'index')) { |
| 6176 |
result.index = array.index; |
| 6177 |
result.input = array.input; |
| 6178 |
} |
| 6179 |
return result; |
| 6180 |
} |
| 6181 |
|
| 6182 |
/** |
| 6183 |
* Initializes an object clone. |
| 6184 |
* |
| 6185 |
* @private |
| 6186 |
* @param {Object} object The object to clone. |
| 6187 |
* @returns {Object} Returns the initialized clone. |
| 6188 |
*/ |
| 6189 |
function initCloneObject(object) { |
| 6190 |
return (typeof object.constructor == 'function' && !isPrototype(object)) |
| 6191 |
? baseCreate(getPrototype(object)) |
| 6192 |
: {}; |
| 6193 |
} |
| 6194 |
|
| 6195 |
/** |
| 6196 |
* Initializes an object clone based on its `toStringTag`. |
| 6197 |
* |
| 6198 |
* **Note:** This function only supports cloning values with tags of |
| 6199 |
* `Boolean`, `Date`, `Error`, `Map`, `Number`, `RegExp`, `Set`, or `String`. |
| 6200 |
* |
| 6201 |
* @private |
| 6202 |
* @param {Object} object The object to clone. |
| 6203 |
* @param {string} tag The `toStringTag` of the object to clone. |
| 6204 |
* @param {boolean} [isDeep] Specify a deep clone. |
| 6205 |
* @returns {Object} Returns the initialized clone. |
| 6206 |
*/ |
| 6207 |
function initCloneByTag(object, tag, isDeep) { |
| 6208 |
var Ctor = object.constructor; |
| 6209 |
switch (tag) { |
| 6210 |
case arrayBufferTag: |
| 6211 |
return cloneArrayBuffer(object); |
| 6212 |
|
| 6213 |
case boolTag: |
| 6214 |
case dateTag: |
| 6215 |
return new Ctor(+object); |
| 6216 |
|
| 6217 |
case dataViewTag: |
| 6218 |
return cloneDataView(object, isDeep); |
| 6219 |
|
| 6220 |
case float32Tag: case float64Tag: |
| 6221 |
case int8Tag: case int16Tag: case int32Tag: |
| 6222 |
case uint8Tag: case uint8ClampedTag: case uint16Tag: case uint32Tag: |
| 6223 |
return cloneTypedArray(object, isDeep); |
| 6224 |
|
| 6225 |
case mapTag: |
| 6226 |
return new Ctor; |
| 6227 |
|
| 6228 |
case numberTag: |
| 6229 |
case stringTag: |
| 6230 |
return new Ctor(object); |
| 6231 |
|
| 6232 |
case regexpTag: |
| 6233 |
return cloneRegExp(object); |
| 6234 |
|
| 6235 |
case setTag: |
| 6236 |
return new Ctor; |
| 6237 |
|
| 6238 |
case symbolTag: |
| 6239 |
return cloneSymbol(object); |
| 6240 |
} |
| 6241 |
} |
| 6242 |
|
| 6243 |
/** |
| 6244 |
* Inserts wrapper `details` in a comment at the top of the `source` body. |
| 6245 |
* |
| 6246 |
* @private |
| 6247 |
* @param {string} source The source to modify. |
| 6248 |
* @returns {Array} details The details to insert. |
| 6249 |
* @returns {string} Returns the modified source. |
| 6250 |
*/ |
| 6251 |
function insertWrapDetails(source, details) { |
| 6252 |
var length = details.length; |
| 6253 |
if (!length) { |
| 6254 |
return source; |
| 6255 |
} |
| 6256 |
var lastIndex = length - 1; |
| 6257 |
details[lastIndex] = (length > 1 ? '& ' : '') + details[lastIndex]; |
| 6258 |
details = details.join(length > 2 ? ', ' : ' '); |
| 6259 |
return source.replace(reWrapComment, '{\n/* [wrapped with ' + details + '] */\n'); |
| 6260 |
} |
| 6261 |
|
| 6262 |
/** |
| 6263 |
* Checks if `value` is a flattenable `arguments` object or array. |
| 6264 |
* |
| 6265 |
* @private |
| 6266 |
* @param {*} value The value to check. |
| 6267 |
* @returns {boolean} Returns `true` if `value` is flattenable, else `false`. |
| 6268 |
*/ |
| 6269 |
function isFlattenable(value) { |
| 6270 |
return isArray(value) || isArguments(value) || |
| 6271 |
!!(spreadableSymbol && value && value[spreadableSymbol]); |
| 6272 |
} |
| 6273 |
|
| 6274 |
/** |
| 6275 |
* Checks if `value` is a valid array-like index. |
| 6276 |
* |
| 6277 |
* @private |
| 6278 |
* @param {*} value The value to check. |
| 6279 |
* @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index. |
| 6280 |
* @returns {boolean} Returns `true` if `value` is a valid index, else `false`. |
| 6281 |
*/ |
| 6282 |
function isIndex(value, length) { |
| 6283 |
var type = typeof value; |
| 6284 |
length = length == null ? MAX_SAFE_INTEGER : length; |
| 6285 |
|
| 6286 |
return !!length && |
| 6287 |
(type == 'number' || |
| 6288 |
(type != 'symbol' && reIsUint.test(value))) && |
| 6289 |
(value > -1 && value % 1 == 0 && value < length); |
| 6290 |
} |
| 6291 |
|
| 6292 |
/** |
| 6293 |
* Checks if the given arguments are from an iteratee call. |
| 6294 |
* |
| 6295 |
* @private |
| 6296 |
* @param {*} value The potential iteratee value argument. |
| 6297 |
* @param {*} index The potential iteratee index or key argument. |
| 6298 |
* @param {*} object The potential iteratee object argument. |
| 6299 |
* @returns {boolean} Returns `true` if the arguments are from an iteratee call, |
| 6300 |
* else `false`. |
| 6301 |
*/ |
| 6302 |
function isIterateeCall(value, index, object) { |
| 6303 |
if (!isObject(object)) { |
| 6304 |
return false; |
| 6305 |
} |
| 6306 |
var type = typeof index; |
| 6307 |
if (type == 'number' |
| 6308 |
? (isArrayLike(object) && isIndex(index, object.length)) |
| 6309 |
: (type == 'string' && index in object) |
| 6310 |
) { |
| 6311 |
return eq(object[index], value); |
| 6312 |
} |
| 6313 |
return false; |
| 6314 |
} |
| 6315 |
|
| 6316 |
/** |
| 6317 |
* Checks if `value` is a property name and not a property path. |
| 6318 |
* |
| 6319 |
* @private |
| 6320 |
* @param {*} value The value to check. |
| 6321 |
* @param {Object} [object] The object to query keys on. |
| 6322 |
* @returns {boolean} Returns `true` if `value` is a property name, else `false`. |
| 6323 |
*/ |
| 6324 |
function isKey(value, object) { |
| 6325 |
if (isArray(value)) { |
| 6326 |
return false; |
| 6327 |
} |
| 6328 |
var type = typeof value; |
| 6329 |
if (type == 'number' || type == 'symbol' || type == 'boolean' || |
| 6330 |
value == null || isSymbol(value)) { |
| 6331 |
return true; |
| 6332 |
} |
| 6333 |
return reIsPlainProp.test(value) || !reIsDeepProp.test(value) || |
| 6334 |
(object != null && value in Object(object)); |
| 6335 |
} |
| 6336 |
|
| 6337 |
/** |
| 6338 |
* Checks if `value` is suitable for use as unique object key. |
| 6339 |
* |
| 6340 |
* @private |
| 6341 |
* @param {*} value The value to check. |
| 6342 |
* @returns {boolean} Returns `true` if `value` is suitable, else `false`. |
| 6343 |
*/ |
| 6344 |
function isKeyable(value) { |
| 6345 |
var type = typeof value; |
| 6346 |
return (type == 'string' || type == 'number' || type == 'symbol' || type == 'boolean') |
| 6347 |
? (value !== '__proto__') |
| 6348 |
: (value === null); |
| 6349 |
} |
| 6350 |
|
| 6351 |
/** |
| 6352 |
* Checks if `func` has a lazy counterpart. |
| 6353 |
* |
| 6354 |
* @private |
| 6355 |
* @param {Function} func The function to check. |
| 6356 |
* @returns {boolean} Returns `true` if `func` has a lazy counterpart, |
| 6357 |
* else `false`. |
| 6358 |
*/ |
| 6359 |
function isLaziable(func) { |
| 6360 |
var funcName = getFuncName(func), |
| 6361 |
other = lodash[funcName]; |
| 6362 |
|
| 6363 |
if (typeof other != 'function' || !(funcName in LazyWrapper.prototype)) { |
| 6364 |
return false; |
| 6365 |
} |
| 6366 |
if (func === other) { |
| 6367 |
return true; |
| 6368 |
} |
| 6369 |
var data = getData(other); |
| 6370 |
return !!data && func === data[0]; |
| 6371 |
} |
| 6372 |
|
| 6373 |
/** |
| 6374 |
* Checks if `func` has its source masked. |
| 6375 |
* |
| 6376 |
* @private |
| 6377 |
* @param {Function} func The function to check. |
| 6378 |
* @returns {boolean} Returns `true` if `func` is masked, else `false`. |
| 6379 |
*/ |
| 6380 |
function isMasked(func) { |
| 6381 |
return !!maskSrcKey && (maskSrcKey in func); |
| 6382 |
} |
| 6383 |
|
| 6384 |
/** |
| 6385 |
* Checks if `func` is capable of being masked. |
| 6386 |
* |
| 6387 |
* @private |
| 6388 |
* @param {*} value The value to check. |
| 6389 |
* @returns {boolean} Returns `true` if `func` is maskable, else `false`. |
| 6390 |
*/ |
| 6391 |
var isMaskable = coreJsData ? isFunction : stubFalse; |
| 6392 |
|
| 6393 |
/** |
| 6394 |
* Checks if `value` is likely a prototype object. |
| 6395 |
* |
| 6396 |
* @private |
| 6397 |
* @param {*} value The value to check. |
| 6398 |
* @returns {boolean} Returns `true` if `value` is a prototype, else `false`. |
| 6399 |
*/ |
| 6400 |
function isPrototype(value) { |
| 6401 |
var Ctor = value && value.constructor, |
| 6402 |
proto = (typeof Ctor == 'function' && Ctor.prototype) || objectProto; |
| 6403 |
|
| 6404 |
return value === proto; |
| 6405 |
} |
| 6406 |
|
| 6407 |
/** |
| 6408 |
* Checks if `value` is suitable for strict equality comparisons, i.e. `===`. |
| 6409 |
* |
| 6410 |
* @private |
| 6411 |
* @param {*} value The value to check. |
| 6412 |
* @returns {boolean} Returns `true` if `value` if suitable for strict |
| 6413 |
* equality comparisons, else `false`. |
| 6414 |
*/ |
| 6415 |
function isStrictComparable(value) { |
| 6416 |
return value === value && !isObject(value); |
| 6417 |
} |
| 6418 |
|
| 6419 |
/** |
| 6420 |
* A specialized version of `matchesProperty` for source values suitable |
| 6421 |
* for strict equality comparisons, i.e. `===`. |
| 6422 |
* |
| 6423 |
* @private |
| 6424 |
* @param {string} key The key of the property to get. |
| 6425 |
* @param {*} srcValue The value to match. |
| 6426 |
* @returns {Function} Returns the new spec function. |
| 6427 |
*/ |
| 6428 |
function matchesStrictComparable(key, srcValue) { |
| 6429 |
return function(object) { |
| 6430 |
if (object == null) { |
| 6431 |
return false; |
| 6432 |
} |
| 6433 |
return object[key] === srcValue && |
| 6434 |
(srcValue !== undefined || (key in Object(object))); |
| 6435 |
}; |
| 6436 |
} |
| 6437 |
|
| 6438 |
/** |
| 6439 |
* A specialized version of `_.memoize` which clears the memoized function's |
| 6440 |
* cache when it exceeds `MAX_MEMOIZE_SIZE`. |
| 6441 |
* |
| 6442 |
* @private |
| 6443 |
* @param {Function} func The function to have its output memoized. |
| 6444 |
* @returns {Function} Returns the new memoized function. |
| 6445 |
*/ |
| 6446 |
function memoizeCapped(func) { |
| 6447 |
var result = memoize(func, function(key) { |
| 6448 |
if (cache.size === MAX_MEMOIZE_SIZE) { |
| 6449 |
cache.clear(); |
| 6450 |
} |
| 6451 |
return key; |
| 6452 |
}); |
| 6453 |
|
| 6454 |
var cache = result.cache; |
| 6455 |
return result; |
| 6456 |
} |
| 6457 |
|
| 6458 |
/** |
| 6459 |
* Merges the function metadata of `source` into `data`. |
| 6460 |
* |
| 6461 |
* Merging metadata reduces the number of wrappers used to invoke a function. |
| 6462 |
* This is possible because methods like `_.bind`, `_.curry`, and `_.partial` |
| 6463 |
* may be applied regardless of execution order. Methods like `_.ary` and |
| 6464 |
* `_.rearg` modify function arguments, making the order in which they are |
| 6465 |
* executed important, preventing the merging of metadata. However, we make |
| 6466 |
* an exception for a safe combined case where curried functions have `_.ary` |
| 6467 |
* and or `_.rearg` applied. |
| 6468 |
* |
| 6469 |
* @private |
| 6470 |
* @param {Array} data The destination metadata. |
| 6471 |
* @param {Array} source The source metadata. |
| 6472 |
* @returns {Array} Returns `data`. |
| 6473 |
*/ |
| 6474 |
function mergeData(data, source) { |
| 6475 |
var bitmask = data[1], |
| 6476 |
srcBitmask = source[1], |
| 6477 |
newBitmask = bitmask | srcBitmask, |
| 6478 |
isCommon = newBitmask < (WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG | WRAP_ARY_FLAG); |
| 6479 |
|
| 6480 |
var isCombo = |
| 6481 |
((srcBitmask == WRAP_ARY_FLAG) && (bitmask == WRAP_CURRY_FLAG)) || |
| 6482 |
((srcBitmask == WRAP_ARY_FLAG) && (bitmask == WRAP_REARG_FLAG) && (data[7].length <= source[8])) || |
| 6483 |
((srcBitmask == (WRAP_ARY_FLAG | WRAP_REARG_FLAG)) && (source[7].length <= source[8]) && (bitmask == WRAP_CURRY_FLAG)); |
| 6484 |
|
| 6485 |
// Exit early if metadata can't be merged. |
| 6486 |
if (!(isCommon || isCombo)) { |
| 6487 |
return data; |
| 6488 |
} |
| 6489 |
// Use source `thisArg` if available. |
| 6490 |
if (srcBitmask & WRAP_BIND_FLAG) { |
| 6491 |
data[2] = source[2]; |
| 6492 |
// Set when currying a bound function. |
| 6493 |
newBitmask |= bitmask & WRAP_BIND_FLAG ? 0 : WRAP_CURRY_BOUND_FLAG; |
| 6494 |
} |
| 6495 |
// Compose partial arguments. |
| 6496 |
var value = source[3]; |
| 6497 |
if (value) { |
| 6498 |
var partials = data[3]; |
| 6499 |
data[3] = partials ? composeArgs(partials, value, source[4]) : value; |
| 6500 |
data[4] = partials ? replaceHolders(data[3], PLACEHOLDER) : source[4]; |
| 6501 |
} |
| 6502 |
// Compose partial right arguments. |
| 6503 |
value = source[5]; |
| 6504 |
if (value) { |
| 6505 |
partials = data[5]; |
| 6506 |
data[5] = partials ? composeArgsRight(partials, value, source[6]) : value; |
| 6507 |
data[6] = partials ? replaceHolders(data[5], PLACEHOLDER) : source[6]; |
| 6508 |
} |
| 6509 |
// Use source `argPos` if available. |
| 6510 |
value = source[7]; |
| 6511 |
if (value) { |
| 6512 |
data[7] = value; |
| 6513 |
} |
| 6514 |
// Use source `ary` if it's smaller. |
| 6515 |
if (srcBitmask & WRAP_ARY_FLAG) { |
| 6516 |
data[8] = data[8] == null ? source[8] : nativeMin(data[8], source[8]); |
| 6517 |
} |
| 6518 |
// Use source `arity` if one is not provided. |
| 6519 |
if (data[9] == null) { |
| 6520 |
data[9] = source[9]; |
| 6521 |
} |
| 6522 |
// Use source `func` and merge bitmasks. |
| 6523 |
data[0] = source[0]; |
| 6524 |
data[1] = newBitmask; |
| 6525 |
|
| 6526 |
return data; |
| 6527 |
} |
| 6528 |
|
| 6529 |
/** |
| 6530 |
* This function is like |
| 6531 |
* [`Object.keys`](http://ecma-international.org/ecma-262/7.0/#sec-object.keys) |
| 6532 |
* except that it includes inherited enumerable properties. |
| 6533 |
* |
| 6534 |
* @private |
| 6535 |
* @param {Object} object The object to query. |
| 6536 |
* @returns {Array} Returns the array of property names. |
| 6537 |
*/ |
| 6538 |
function nativeKeysIn(object) { |
| 6539 |
var result = []; |
| 6540 |
if (object != null) { |
| 6541 |
for (var key in Object(object)) { |
| 6542 |
result.push(key); |
| 6543 |
} |
| 6544 |
} |
| 6545 |
return result; |
| 6546 |
} |
| 6547 |
|
| 6548 |
/** |
| 6549 |
* Converts `value` to a string using `Object.prototype.toString`. |
| 6550 |
* |
| 6551 |
* @private |
| 6552 |
* @param {*} value The value to convert. |
| 6553 |
* @returns {string} Returns the converted string. |
| 6554 |
*/ |
| 6555 |
function objectToString(value) { |
| 6556 |
return nativeObjectToString.call(value); |
| 6557 |
} |
| 6558 |
|
| 6559 |
/** |
| 6560 |
* A specialized version of `baseRest` which transforms the rest array. |
| 6561 |
* |
| 6562 |
* @private |
| 6563 |
* @param {Function} func The function to apply a rest parameter to. |
| 6564 |
* @param {number} [start=func.length-1] The start position of the rest parameter. |
| 6565 |
* @param {Function} transform The rest array transform. |
| 6566 |
* @returns {Function} Returns the new function. |
| 6567 |
*/ |
| 6568 |
function overRest(func, start, transform) { |
| 6569 |
start = nativeMax(start === undefined ? (func.length - 1) : start, 0); |
| 6570 |
return function() { |
| 6571 |
var args = arguments, |
| 6572 |
index = -1, |
| 6573 |
length = nativeMax(args.length - start, 0), |
| 6574 |
array = Array(length); |
| 6575 |
|
| 6576 |
while (++index < length) { |
| 6577 |
array[index] = args[start + index]; |
| 6578 |
} |
| 6579 |
index = -1; |
| 6580 |
var otherArgs = Array(start + 1); |
| 6581 |
while (++index < start) { |
| 6582 |
otherArgs[index] = args[index]; |
| 6583 |
} |
| 6584 |
otherArgs[start] = transform(array); |
| 6585 |
return apply(func, this, otherArgs); |
| 6586 |
}; |
| 6587 |
} |
| 6588 |
|
| 6589 |
/** |
| 6590 |
* Gets the parent value at `path` of `object`. |
| 6591 |
* |
| 6592 |
* @private |
| 6593 |
* @param {Object} object The object to query. |
| 6594 |
* @param {Array} path The path to get the parent value of. |
| 6595 |
* @returns {*} Returns the parent value. |
| 6596 |
*/ |
| 6597 |
function parent(object, path) { |
| 6598 |
return path.length < 2 ? object : baseGet(object, baseSlice(path, 0, -1)); |
| 6599 |
} |
| 6600 |
|
| 6601 |
/** |
| 6602 |
* Reorder `array` according to the specified indexes where the element at |
| 6603 |
* the first index is assigned as the first element, the element at |
| 6604 |
* the second index is assigned as the second element, and so on. |
| 6605 |
* |
| 6606 |
* @private |
| 6607 |
* @param {Array} array The array to reorder. |
| 6608 |
* @param {Array} indexes The arranged array indexes. |
| 6609 |
* @returns {Array} Returns `array`. |
| 6610 |
*/ |
| 6611 |
function reorder(array, indexes) { |
| 6612 |
var arrLength = array.length, |
| 6613 |
length = nativeMin(indexes.length, arrLength), |
| 6614 |
oldArray = copyArray(array); |
| 6615 |
|
| 6616 |
while (length--) { |
| 6617 |
var index = indexes[length]; |
| 6618 |
array[length] = isIndex(index, arrLength) ? oldArray[index] : undefined; |
| 6619 |
} |
| 6620 |
return array; |
| 6621 |
} |
| 6622 |
|
| 6623 |
/** |
| 6624 |
* Gets the value at `key`, unless `key` is "__proto__" or "constructor". |
| 6625 |
* |
| 6626 |
* @private |
| 6627 |
* @param {Object} object The object to query. |
| 6628 |
* @param {string} key The key of the property to get. |
| 6629 |
* @returns {*} Returns the property value. |
| 6630 |
*/ |
| 6631 |
function safeGet(object, key) { |
| 6632 |
if (key === 'constructor' && typeof object[key] === 'function') { |
| 6633 |
return; |
| 6634 |
} |
| 6635 |
|
| 6636 |
if (key == '__proto__') { |
| 6637 |
return; |
| 6638 |
} |
| 6639 |
|
| 6640 |
return object[key]; |
| 6641 |
} |
| 6642 |
|
| 6643 |
/** |
| 6644 |
* Sets metadata for `func`. |
| 6645 |
* |
| 6646 |
* **Note:** If this function becomes hot, i.e. is invoked a lot in a short |
| 6647 |
* period of time, it will trip its breaker and transition to an identity |
| 6648 |
* function to avoid garbage collection pauses in V8. See |
| 6649 |
* [V8 issue 2070](https://bugs.chromium.org/p/v8/issues/detail?id=2070) |
| 6650 |
* for more details. |
| 6651 |
* |
| 6652 |
* @private |
| 6653 |
* @param {Function} func The function to associate metadata with. |
| 6654 |
* @param {*} data The metadata. |
| 6655 |
* @returns {Function} Returns `func`. |
| 6656 |
*/ |
| 6657 |
var setData = shortOut(baseSetData); |
| 6658 |
|
| 6659 |
/** |
| 6660 |
* A simple wrapper around the global [`setTimeout`](https://mdn.io/setTimeout). |
| 6661 |
* |
| 6662 |
* @private |
| 6663 |
* @param {Function} func The function to delay. |
| 6664 |
* @param {number} wait The number of milliseconds to delay invocation. |
| 6665 |
* @returns {number|Object} Returns the timer id or timeout object. |
| 6666 |
*/ |
| 6667 |
var setTimeout = ctxSetTimeout || function(func, wait) { |
| 6668 |
return root.setTimeout(func, wait); |
| 6669 |
}; |
| 6670 |
|
| 6671 |
/** |
| 6672 |
* Sets the `toString` method of `func` to return `string`. |
| 6673 |
* |
| 6674 |
* @private |
| 6675 |
* @param {Function} func The function to modify. |
| 6676 |
* @param {Function} string The `toString` result. |
| 6677 |
* @returns {Function} Returns `func`. |
| 6678 |
*/ |
| 6679 |
var setToString = shortOut(baseSetToString); |
| 6680 |
|
| 6681 |
/** |
| 6682 |
* Sets the `toString` method of `wrapper` to mimic the source of `reference` |
| 6683 |
* with wrapper details in a comment at the top of the source body. |
| 6684 |
* |
| 6685 |
* @private |
| 6686 |
* @param {Function} wrapper The function to modify. |
| 6687 |
* @param {Function} reference The reference function. |
| 6688 |
* @param {number} bitmask The bitmask flags. See `createWrap` for more details. |
| 6689 |
* @returns {Function} Returns `wrapper`. |
| 6690 |
*/ |
| 6691 |
function setWrapToString(wrapper, reference, bitmask) { |
| 6692 |
var source = (reference + ''); |
| 6693 |
return setToString(wrapper, insertWrapDetails(source, updateWrapDetails(getWrapDetails(source), bitmask))); |
| 6694 |
} |
| 6695 |
|
| 6696 |
/** |
| 6697 |
* Creates a function that'll short out and invoke `identity` instead |
| 6698 |
* of `func` when it's called `HOT_COUNT` or more times in `HOT_SPAN` |
| 6699 |
* milliseconds. |
| 6700 |
* |
| 6701 |
* @private |
| 6702 |
* @param {Function} func The function to restrict. |
| 6703 |
* @returns {Function} Returns the new shortable function. |
| 6704 |
*/ |
| 6705 |
function shortOut(func) { |
| 6706 |
var count = 0, |
| 6707 |
lastCalled = 0; |
| 6708 |
|
| 6709 |
return function() { |
| 6710 |
var stamp = nativeNow(), |
| 6711 |
remaining = HOT_SPAN - (stamp - lastCalled); |
| 6712 |
|
| 6713 |
lastCalled = stamp; |
| 6714 |
if (remaining > 0) { |
| 6715 |
if (++count >= HOT_COUNT) { |
| 6716 |
return arguments[0]; |
| 6717 |
} |
| 6718 |
} else { |
| 6719 |
count = 0; |
| 6720 |
} |
| 6721 |
return func.apply(undefined, arguments); |
| 6722 |
}; |
| 6723 |
} |
| 6724 |
|
| 6725 |
/** |
| 6726 |
* A specialized version of `_.shuffle` which mutates and sets the size of `array`. |
| 6727 |
* |
| 6728 |
* @private |
| 6729 |
* @param {Array} array The array to shuffle. |
| 6730 |
* @param {number} [size=array.length] The size of `array`. |
| 6731 |
* @returns {Array} Returns `array`. |
| 6732 |
*/ |
| 6733 |
function shuffleSelf(array, size) { |
| 6734 |
var index = -1, |
| 6735 |
length = array.length, |
| 6736 |
lastIndex = length - 1; |
| 6737 |
|
| 6738 |
size = size === undefined ? length : size; |
| 6739 |
while (++index < size) { |
| 6740 |
var rand = baseRandom(index, lastIndex), |
| 6741 |
value = array[rand]; |
| 6742 |
|
| 6743 |
array[rand] = array[index]; |
| 6744 |
array[index] = value; |
| 6745 |
} |
| 6746 |
array.length = size; |
| 6747 |
return array; |
| 6748 |
} |
| 6749 |
|
| 6750 |
/** |
| 6751 |
* Converts `string` to a property path array. |
| 6752 |
* |
| 6753 |
* @private |
| 6754 |
* @param {string} string The string to convert. |
| 6755 |
* @returns {Array} Returns the property path array. |
| 6756 |
*/ |
| 6757 |
var stringToPath = memoizeCapped(function(string) { |
| 6758 |
var result = []; |
| 6759 |
if (string.charCodeAt(0) === 46 /* . */) { |
| 6760 |
result.push(''); |
| 6761 |
} |
| 6762 |
string.replace(rePropName, function(match, number, quote, subString) { |
| 6763 |
result.push(quote ? subString.replace(reEscapeChar, '$1') : (number || match)); |
| 6764 |
}); |
| 6765 |
return result; |
| 6766 |
}); |
| 6767 |
|
| 6768 |
/** |
| 6769 |
* Converts `value` to a string key if it's not a string or symbol. |
| 6770 |
* |
| 6771 |
* @private |
| 6772 |
* @param {*} value The value to inspect. |
| 6773 |
* @returns {string|symbol} Returns the key. |
| 6774 |
*/ |
| 6775 |
function toKey(value) { |
| 6776 |
if (typeof value == 'string' || isSymbol(value)) { |
| 6777 |
return value; |
| 6778 |
} |
| 6779 |
var result = (value + ''); |
| 6780 |
return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result; |
| 6781 |
} |
| 6782 |
|
| 6783 |
/** |
| 6784 |
* Converts `func` to its source code. |
| 6785 |
* |
| 6786 |
* @private |
| 6787 |
* @param {Function} func The function to convert. |
| 6788 |
* @returns {string} Returns the source code. |
| 6789 |
*/ |
| 6790 |
function toSource(func) { |
| 6791 |
if (func != null) { |
| 6792 |
try { |
| 6793 |
return funcToString.call(func); |
| 6794 |
} catch (e) {} |
| 6795 |
try { |
| 6796 |
return (func + ''); |
| 6797 |
} catch (e) {} |
| 6798 |
} |
| 6799 |
return ''; |
| 6800 |
} |
| 6801 |
|
| 6802 |
/** |
| 6803 |
* Updates wrapper `details` based on `bitmask` flags. |
| 6804 |
* |
| 6805 |
* @private |
| 6806 |
* @returns {Array} details The details to modify. |
| 6807 |
* @param {number} bitmask The bitmask flags. See `createWrap` for more details. |
| 6808 |
* @returns {Array} Returns `details`. |
| 6809 |
*/ |
| 6810 |
function updateWrapDetails(details, bitmask) { |
| 6811 |
arrayEach(wrapFlags, function(pair) { |
| 6812 |
var value = '_.' + pair[0]; |
| 6813 |
if ((bitmask & pair[1]) && !arrayIncludes(details, value)) { |
| 6814 |
details.push(value); |
| 6815 |
} |
| 6816 |
}); |
| 6817 |
return details.sort(); |
| 6818 |
} |
| 6819 |
|
| 6820 |
/** |
| 6821 |
* Creates a clone of `wrapper`. |
| 6822 |
* |
| 6823 |
* @private |
| 6824 |
* @param {Object} wrapper The wrapper to clone. |
| 6825 |
* @returns {Object} Returns the cloned wrapper. |
| 6826 |
*/ |
| 6827 |
function wrapperClone(wrapper) { |
| 6828 |
if (wrapper instanceof LazyWrapper) { |
| 6829 |
return wrapper.clone(); |
| 6830 |
} |
| 6831 |
var result = new LodashWrapper(wrapper.__wrapped__, wrapper.__chain__); |
| 6832 |
result.__actions__ = copyArray(wrapper.__actions__); |
| 6833 |
result.__index__ = wrapper.__index__; |
| 6834 |
result.__values__ = wrapper.__values__; |
| 6835 |
return result; |
| 6836 |
} |
| 6837 |
|
| 6838 |
/*------------------------------------------------------------------------*/ |
| 6839 |
|
| 6840 |
/** |
| 6841 |
* Creates an array of elements split into groups the length of `size`. |
| 6842 |
* If `array` can't be split evenly, the final chunk will be the remaining |
| 6843 |
* elements. |
| 6844 |
* |
| 6845 |
* @static |
| 6846 |
* @memberOf _ |
| 6847 |
* @since 3.0.0 |
| 6848 |
* @category Array |
| 6849 |
* @param {Array} array The array to process. |
| 6850 |
* @param {number} [size=1] The length of each chunk |
| 6851 |
* @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. |
| 6852 |
* @returns {Array} Returns the new array of chunks. |
| 6853 |
* @example |
| 6854 |
* |
| 6855 |
* _.chunk(['a', 'b', 'c', 'd'], 2); |
| 6856 |
* // => [['a', 'b'], ['c', 'd']] |
| 6857 |
* |
| 6858 |
* _.chunk(['a', 'b', 'c', 'd'], 3); |
| 6859 |
* // => [['a', 'b', 'c'], ['d']] |
| 6860 |
*/ |
| 6861 |
function chunk(array, size, guard) { |
| 6862 |
if ((guard ? isIterateeCall(array, size, guard) : size === undefined)) { |
| 6863 |
size = 1; |
| 6864 |
} else { |
| 6865 |
size = nativeMax(toInteger(size), 0); |
| 6866 |
} |
| 6867 |
var length = array == null ? 0 : array.length; |
| 6868 |
if (!length || size < 1) { |
| 6869 |
return []; |
| 6870 |
} |
| 6871 |
var index = 0, |
| 6872 |
resIndex = 0, |
| 6873 |
result = Array(nativeCeil(length / size)); |
| 6874 |
|
| 6875 |
while (index < length) { |
| 6876 |
result[resIndex++] = baseSlice(array, index, (index += size)); |
| 6877 |
} |
| 6878 |
return result; |
| 6879 |
} |
| 6880 |
|
| 6881 |
/** |
| 6882 |
* Creates an array with all falsey values removed. The values `false`, `null`, |
| 6883 |
* `0`, `""`, `undefined`, and `NaN` are falsey. |
| 6884 |
* |
| 6885 |
* @static |
| 6886 |
* @memberOf _ |
| 6887 |
* @since 0.1.0 |
| 6888 |
* @category Array |
| 6889 |
* @param {Array} array The array to compact. |
| 6890 |
* @returns {Array} Returns the new array of filtered values. |
| 6891 |
* @example |
| 6892 |
* |
| 6893 |
* _.compact([0, 1, false, 2, '', 3]); |
| 6894 |
* // => [1, 2, 3] |
| 6895 |
*/ |
| 6896 |
function compact(array) { |
| 6897 |
var index = -1, |
| 6898 |
length = array == null ? 0 : array.length, |
| 6899 |
resIndex = 0, |
| 6900 |
result = []; |
| 6901 |
|
| 6902 |
while (++index < length) { |
| 6903 |
var value = array[index]; |
| 6904 |
if (value) { |
| 6905 |
result[resIndex++] = value; |
| 6906 |
} |
| 6907 |
} |
| 6908 |
return result; |
| 6909 |
} |
| 6910 |
|
| 6911 |
/** |
| 6912 |
* Creates a new array concatenating `array` with any additional arrays |
| 6913 |
* and/or values. |
| 6914 |
* |
| 6915 |
* @static |
| 6916 |
* @memberOf _ |
| 6917 |
* @since 4.0.0 |
| 6918 |
* @category Array |
| 6919 |
* @param {Array} array The array to concatenate. |
| 6920 |
* @param {...*} [values] The values to concatenate. |
| 6921 |
* @returns {Array} Returns the new concatenated array. |
| 6922 |
* @example |
| 6923 |
* |
| 6924 |
* var array = [1]; |
| 6925 |
* var other = _.concat(array, 2, [3], [[4]]); |
| 6926 |
* |
| 6927 |
* console.log(other); |
| 6928 |
* // => [1, 2, 3, [4]] |
| 6929 |
* |
| 6930 |
* console.log(array); |
| 6931 |
* // => [1] |
| 6932 |
*/ |
| 6933 |
function concat() { |
| 6934 |
var length = arguments.length; |
| 6935 |
if (!length) { |
| 6936 |
return []; |
| 6937 |
} |
| 6938 |
var args = Array(length - 1), |
| 6939 |
array = arguments[0], |
| 6940 |
index = length; |
| 6941 |
|
| 6942 |
while (index--) { |
| 6943 |
args[index - 1] = arguments[index]; |
| 6944 |
} |
| 6945 |
return arrayPush(isArray(array) ? copyArray(array) : [array], baseFlatten(args, 1)); |
| 6946 |
} |
| 6947 |
|
| 6948 |
/** |
| 6949 |
* Creates an array of `array` values not included in the other given arrays |
| 6950 |
* using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) |
| 6951 |
* for equality comparisons. The order and references of result values are |
| 6952 |
* determined by the first array. |
| 6953 |
* |
| 6954 |
* **Note:** Unlike `_.pullAll`, this method returns a new array. |
| 6955 |
* |
| 6956 |
* @static |
| 6957 |
* @memberOf _ |
| 6958 |
* @since 0.1.0 |
| 6959 |
* @category Array |
| 6960 |
* @param {Array} array The array to inspect. |
| 6961 |
* @param {...Array} [values] The values to exclude. |
| 6962 |
* @returns {Array} Returns the new array of filtered values. |
| 6963 |
* @see _.without, _.xor |
| 6964 |
* @example |
| 6965 |
* |
| 6966 |
* _.difference([2, 1], [2, 3]); |
| 6967 |
* // => [1] |
| 6968 |
*/ |
| 6969 |
var difference = baseRest(function(array, values) { |
| 6970 |
return isArrayLikeObject(array) |
| 6971 |
? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true)) |
| 6972 |
: []; |
| 6973 |
}); |
| 6974 |
|
| 6975 |
/** |
| 6976 |
* This method is like `_.difference` except that it accepts `iteratee` which |
| 6977 |
* is invoked for each element of `array` and `values` to generate the criterion |
| 6978 |
* by which they're compared. The order and references of result values are |
| 6979 |
* determined by the first array. The iteratee is invoked with one argument: |
| 6980 |
* (value). |
| 6981 |
* |
| 6982 |
* **Note:** Unlike `_.pullAllBy`, this method returns a new array. |
| 6983 |
* |
| 6984 |
* @static |
| 6985 |
* @memberOf _ |
| 6986 |
* @since 4.0.0 |
| 6987 |
* @category Array |
| 6988 |
* @param {Array} array The array to inspect. |
| 6989 |
* @param {...Array} [values] The values to exclude. |
| 6990 |
* @param {Function} [iteratee=_.identity] The iteratee invoked per element. |
| 6991 |
* @returns {Array} Returns the new array of filtered values. |
| 6992 |
* @example |
| 6993 |
* |
| 6994 |
* _.differenceBy([2.1, 1.2], [2.3, 3.4], Math.floor); |
| 6995 |
* // => [1.2] |
| 6996 |
* |
| 6997 |
* // The `_.property` iteratee shorthand. |
| 6998 |
* _.differenceBy([{ 'x': 2 }, { 'x': 1 }], [{ 'x': 1 }], 'x'); |
| 6999 |
* // => [{ 'x': 2 }] |
| 7000 |
*/ |
| 7001 |
var differenceBy = baseRest(function(array, values) { |
| 7002 |
var iteratee = last(values); |
| 7003 |
if (isArrayLikeObject(iteratee)) { |
| 7004 |
iteratee = undefined; |
| 7005 |
} |
| 7006 |
return isArrayLikeObject(array) |
| 7007 |
? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true), getIteratee(iteratee, 2)) |
| 7008 |
: []; |
| 7009 |
}); |
| 7010 |
|
| 7011 |
/** |
| 7012 |
* This method is like `_.difference` except that it accepts `comparator` |
| 7013 |
* which is invoked to compare elements of `array` to `values`. The order and |
| 7014 |
* references of result values are determined by the first array. The comparator |
| 7015 |
* is invoked with two arguments: (arrVal, othVal). |
| 7016 |
* |
| 7017 |
* **Note:** Unlike `_.pullAllWith`, this method returns a new array. |
| 7018 |
* |
| 7019 |
* @static |
| 7020 |
* @memberOf _ |
| 7021 |
* @since 4.0.0 |
| 7022 |
* @category Array |
| 7023 |
* @param {Array} array The array to inspect. |
| 7024 |
* @param {...Array} [values] The values to exclude. |
| 7025 |
* @param {Function} [comparator] The comparator invoked per element. |
| 7026 |
* @returns {Array} Returns the new array of filtered values. |
| 7027 |
* @example |
| 7028 |
* |
| 7029 |
* var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }]; |
| 7030 |
* |
| 7031 |
* _.differenceWith(objects, [{ 'x': 1, 'y': 2 }], _.isEqual); |
| 7032 |
* // => [{ 'x': 2, 'y': 1 }] |
| 7033 |
*/ |
| 7034 |
var differenceWith = baseRest(function(array, values) { |
| 7035 |
var comparator = last(values); |
| 7036 |
if (isArrayLikeObject(comparator)) { |
| 7037 |
comparator = undefined; |
| 7038 |
} |
| 7039 |
return isArrayLikeObject(array) |
| 7040 |
? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true), undefined, comparator) |
| 7041 |
: []; |
| 7042 |
}); |
| 7043 |
|
| 7044 |
/** |
| 7045 |
* Creates a slice of `array` with `n` elements dropped from the beginning. |
| 7046 |
* |
| 7047 |
* @static |
| 7048 |
* @memberOf _ |
| 7049 |
* @since 0.5.0 |
| 7050 |
* @category Array |
| 7051 |
* @param {Array} array The array to query. |
| 7052 |
* @param {number} [n=1] The number of elements to drop. |
| 7053 |
* @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. |
| 7054 |
* @returns {Array} Returns the slice of `array`. |
| 7055 |
* @example |
| 7056 |
* |
| 7057 |
* _.drop([1, 2, 3]); |
| 7058 |
* // => [2, 3] |
| 7059 |
* |
| 7060 |
* _.drop([1, 2, 3], 2); |
| 7061 |
* // => [3] |
| 7062 |
* |
| 7063 |
* _.drop([1, 2, 3], 5); |
| 7064 |
* // => [] |
| 7065 |
* |
| 7066 |
* _.drop([1, 2, 3], 0); |
| 7067 |
* // => [1, 2, 3] |
| 7068 |
*/ |
| 7069 |
function drop(array, n, guard) { |
| 7070 |
var length = array == null ? 0 : array.length; |
| 7071 |
if (!length) { |
| 7072 |
return []; |
| 7073 |
} |
| 7074 |
n = (guard || n === undefined) ? 1 : toInteger(n); |
| 7075 |
return baseSlice(array, n < 0 ? 0 : n, length); |
| 7076 |
} |
| 7077 |
|
| 7078 |
/** |
| 7079 |
* Creates a slice of `array` with `n` elements dropped from the end. |
| 7080 |
* |
| 7081 |
* @static |
| 7082 |
* @memberOf _ |
| 7083 |
* @since 3.0.0 |
| 7084 |
* @category Array |
| 7085 |
* @param {Array} array The array to query. |
| 7086 |
* @param {number} [n=1] The number of elements to drop. |
| 7087 |
* @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. |
| 7088 |
* @returns {Array} Returns the slice of `array`. |
| 7089 |
* @example |
| 7090 |
* |
| 7091 |
* _.dropRight([1, 2, 3]); |
| 7092 |
* // => [1, 2] |
| 7093 |
* |
| 7094 |
* _.dropRight([1, 2, 3], 2); |
| 7095 |
* // => [1] |
| 7096 |
* |
| 7097 |
* _.dropRight([1, 2, 3], 5); |
| 7098 |
* // => [] |
| 7099 |
* |
| 7100 |
* _.dropRight([1, 2, 3], 0); |
| 7101 |
* // => [1, 2, 3] |
| 7102 |
*/ |
| 7103 |
function dropRight(array, n, guard) { |
| 7104 |
var length = array == null ? 0 : array.length; |
| 7105 |
if (!length) { |
| 7106 |
return []; |
| 7107 |
} |
| 7108 |
n = (guard || n === undefined) ? 1 : toInteger(n); |
| 7109 |
n = length - n; |
| 7110 |
return baseSlice(array, 0, n < 0 ? 0 : n); |
| 7111 |
} |
| 7112 |
|
| 7113 |
/** |
| 7114 |
* Creates a slice of `array` excluding elements dropped from the end. |
| 7115 |
* Elements are dropped until `predicate` returns falsey. The predicate is |
| 7116 |
* invoked with three arguments: (value, index, array). |
| 7117 |
* |
| 7118 |
* @static |
| 7119 |
* @memberOf _ |
| 7120 |
* @since 3.0.0 |
| 7121 |
* @category Array |
| 7122 |
* @param {Array} array The array to query. |
| 7123 |
* @param {Function} [predicate=_.identity] The function invoked per iteration. |
| 7124 |
* @returns {Array} Returns the slice of `array`. |
| 7125 |
* @example |
| 7126 |
* |
| 7127 |
* var users = [ |
| 7128 |
* { 'user': 'barney', 'active': true }, |
| 7129 |
* { 'user': 'fred', 'active': false }, |
| 7130 |
* { 'user': 'pebbles', 'active': false } |
| 7131 |
* ]; |
| 7132 |
* |
| 7133 |
* _.dropRightWhile(users, function(o) { return !o.active; }); |
| 7134 |
* // => objects for ['barney'] |
| 7135 |
* |
| 7136 |
* // The `_.matches` iteratee shorthand. |
| 7137 |
* _.dropRightWhile(users, { 'user': 'pebbles', 'active': false }); |
| 7138 |
* // => objects for ['barney', 'fred'] |
| 7139 |
* |
| 7140 |
* // The `_.matchesProperty` iteratee shorthand. |
| 7141 |
* _.dropRightWhile(users, ['active', false]); |
| 7142 |
* // => objects for ['barney'] |
| 7143 |
* |
| 7144 |
* // The `_.property` iteratee shorthand. |
| 7145 |
* _.dropRightWhile(users, 'active'); |
| 7146 |
* // => objects for ['barney', 'fred', 'pebbles'] |
| 7147 |
*/ |
| 7148 |
function dropRightWhile(array, predicate) { |
| 7149 |
return (array && array.length) |
| 7150 |
? baseWhile(array, getIteratee(predicate, 3), true, true) |
| 7151 |
: []; |
| 7152 |
} |
| 7153 |
|
| 7154 |
/** |
| 7155 |
* Creates a slice of `array` excluding elements dropped from the beginning. |
| 7156 |
* Elements are dropped until `predicate` returns falsey. The predicate is |
| 7157 |
* invoked with three arguments: (value, index, array). |
| 7158 |
* |
| 7159 |
* @static |
| 7160 |
* @memberOf _ |
| 7161 |
* @since 3.0.0 |
| 7162 |
* @category Array |
| 7163 |
* @param {Array} array The array to query. |
| 7164 |
* @param {Function} [predicate=_.identity] The function invoked per iteration. |
| 7165 |
* @returns {Array} Returns the slice of `array`. |
| 7166 |
* @example |
| 7167 |
* |
| 7168 |
* var users = [ |
| 7169 |
* { 'user': 'barney', 'active': false }, |
| 7170 |
* { 'user': 'fred', 'active': false }, |
| 7171 |
* { 'user': 'pebbles', 'active': true } |
| 7172 |
* ]; |
| 7173 |
* |
| 7174 |
* _.dropWhile(users, function(o) { return !o.active; }); |
| 7175 |
* // => objects for ['pebbles'] |
| 7176 |
* |
| 7177 |
* // The `_.matches` iteratee shorthand. |
| 7178 |
* _.dropWhile(users, { 'user': 'barney', 'active': false }); |
| 7179 |
* // => objects for ['fred', 'pebbles'] |
| 7180 |
* |
| 7181 |
* // The `_.matchesProperty` iteratee shorthand. |
| 7182 |
* _.dropWhile(users, ['active', false]); |
| 7183 |
* // => objects for ['pebbles'] |
| 7184 |
* |
| 7185 |
* // The `_.property` iteratee shorthand. |
| 7186 |
* _.dropWhile(users, 'active'); |
| 7187 |
* // => objects for ['barney', 'fred', 'pebbles'] |
| 7188 |
*/ |
| 7189 |
function dropWhile(array, predicate) { |
| 7190 |
return (array && array.length) |
| 7191 |
? baseWhile(array, getIteratee(predicate, 3), true) |
| 7192 |
: []; |
| 7193 |
} |
| 7194 |
|
| 7195 |
/** |
| 7196 |
* Fills elements of `array` with `value` from `start` up to, but not |
| 7197 |
* including, `end`. |
| 7198 |
* |
| 7199 |
* **Note:** This method mutates `array`. |
| 7200 |
* |
| 7201 |
* @static |
| 7202 |
* @memberOf _ |
| 7203 |
* @since 3.2.0 |
| 7204 |
* @category Array |
| 7205 |
* @param {Array} array The array to fill. |
| 7206 |
* @param {*} value The value to fill `array` with. |
| 7207 |
* @param {number} [start=0] The start position. |
| 7208 |
* @param {number} [end=array.length] The end position. |
| 7209 |
* @returns {Array} Returns `array`. |
| 7210 |
* @example |
| 7211 |
* |
| 7212 |
* var array = [1, 2, 3]; |
| 7213 |
* |
| 7214 |
* _.fill(array, 'a'); |
| 7215 |
* console.log(array); |
| 7216 |
* // => ['a', 'a', 'a'] |
| 7217 |
* |
| 7218 |
* _.fill(Array(3), 2); |
| 7219 |
* // => [2, 2, 2] |
| 7220 |
* |
| 7221 |
* _.fill([4, 6, 8, 10], '*', 1, 3); |
| 7222 |
* // => [4, '*', '*', 10] |
| 7223 |
*/ |
| 7224 |
function fill(array, value, start, end) { |
| 7225 |
var length = array == null ? 0 : array.length; |
| 7226 |
if (!length) { |
| 7227 |
return []; |
| 7228 |
} |
| 7229 |
if (start && typeof start != 'number' && isIterateeCall(array, value, start)) { |
| 7230 |
start = 0; |
| 7231 |
end = length; |
| 7232 |
} |
| 7233 |
return baseFill(array, value, start, end); |
| 7234 |
} |
| 7235 |
|
| 7236 |
/** |
| 7237 |
* This method is like `_.find` except that it returns the index of the first |
| 7238 |
* element `predicate` returns truthy for instead of the element itself. |
| 7239 |
* |
| 7240 |
* @static |
| 7241 |
* @memberOf _ |
| 7242 |
* @since 1.1.0 |
| 7243 |
* @category Array |
| 7244 |
* @param {Array} array The array to inspect. |
| 7245 |
* @param {Function} [predicate=_.identity] The function invoked per iteration. |
| 7246 |
* @param {number} [fromIndex=0] The index to search from. |
| 7247 |
* @returns {number} Returns the index of the found element, else `-1`. |
| 7248 |
* @example |
| 7249 |
* |
| 7250 |
* var users = [ |
| 7251 |
* { 'user': 'barney', 'active': false }, |
| 7252 |
* { 'user': 'fred', 'active': false }, |
| 7253 |
* { 'user': 'pebbles', 'active': true } |
| 7254 |
* ]; |
| 7255 |
* |
| 7256 |
* _.findIndex(users, function(o) { return o.user == 'barney'; }); |
| 7257 |
* // => 0 |
| 7258 |
* |
| 7259 |
* // The `_.matches` iteratee shorthand. |
| 7260 |
* _.findIndex(users, { 'user': 'fred', 'active': false }); |
| 7261 |
* // => 1 |
| 7262 |
* |
| 7263 |
* // The `_.matchesProperty` iteratee shorthand. |
| 7264 |
* _.findIndex(users, ['active', false]); |
| 7265 |
* // => 0 |
| 7266 |
* |
| 7267 |
* // The `_.property` iteratee shorthand. |
| 7268 |
* _.findIndex(users, 'active'); |
| 7269 |
* // => 2 |
| 7270 |
*/ |
| 7271 |
function findIndex(array, predicate, fromIndex) { |
| 7272 |
var length = array == null ? 0 : array.length; |
| 7273 |
if (!length) { |
| 7274 |
return -1; |
| 7275 |
} |
| 7276 |
var index = fromIndex == null ? 0 : toInteger(fromIndex); |
| 7277 |
if (index < 0) { |
| 7278 |
index = nativeMax(length + index, 0); |
| 7279 |
} |
| 7280 |
return baseFindIndex(array, getIteratee(predicate, 3), index); |
| 7281 |
} |
| 7282 |
|
| 7283 |
/** |
| 7284 |
* This method is like `_.findIndex` except that it iterates over elements |
| 7285 |
* of `collection` from right to left. |
| 7286 |
* |
| 7287 |
* @static |
| 7288 |
* @memberOf _ |
| 7289 |
* @since 2.0.0 |
| 7290 |
* @category Array |
| 7291 |
* @param {Array} array The array to inspect. |
| 7292 |
* @param {Function} [predicate=_.identity] The function invoked per iteration. |
| 7293 |
* @param {number} [fromIndex=array.length-1] The index to search from. |
| 7294 |
* @returns {number} Returns the index of the found element, else `-1`. |
| 7295 |
* @example |
| 7296 |
* |
| 7297 |
* var users = [ |
| 7298 |
* { 'user': 'barney', 'active': true }, |
| 7299 |
* { 'user': 'fred', 'active': false }, |
| 7300 |
* { 'user': 'pebbles', 'active': false } |
| 7301 |
* ]; |
| 7302 |
* |
| 7303 |
* _.findLastIndex(users, function(o) { return o.user == 'pebbles'; }); |
| 7304 |
* // => 2 |
| 7305 |
* |
| 7306 |
* // The `_.matches` iteratee shorthand. |
| 7307 |
* _.findLastIndex(users, { 'user': 'barney', 'active': true }); |
| 7308 |
* // => 0 |
| 7309 |
* |
| 7310 |
* // The `_.matchesProperty` iteratee shorthand. |
| 7311 |
* _.findLastIndex(users, ['active', false]); |
| 7312 |
* // => 2 |
| 7313 |
* |
| 7314 |
* // The `_.property` iteratee shorthand. |
| 7315 |
* _.findLastIndex(users, 'active'); |
| 7316 |
* // => 0 |
| 7317 |
*/ |
| 7318 |
function findLastIndex(array, predicate, fromIndex) { |
| 7319 |
var length = array == null ? 0 : array.length; |
| 7320 |
if (!length) { |
| 7321 |
return -1; |
| 7322 |
} |
| 7323 |
var index = length - 1; |
| 7324 |
if (fromIndex !== undefined) { |
| 7325 |
index = toInteger(fromIndex); |
| 7326 |
index = fromIndex < 0 |
| 7327 |
? nativeMax(length + index, 0) |
| 7328 |
: nativeMin(index, length - 1); |
| 7329 |
} |
| 7330 |
return baseFindIndex(array, getIteratee(predicate, 3), index, true); |
| 7331 |
} |
| 7332 |
|
| 7333 |
/** |
| 7334 |
* Flattens `array` a single level deep. |
| 7335 |
* |
| 7336 |
* @static |
| 7337 |
* @memberOf _ |
| 7338 |
* @since 0.1.0 |
| 7339 |
* @category Array |
| 7340 |
* @param {Array} array The array to flatten. |
| 7341 |
* @returns {Array} Returns the new flattened array. |
| 7342 |
* @example |
| 7343 |
* |
| 7344 |
* _.flatten([1, [2, [3, [4]], 5]]); |
| 7345 |
* // => [1, 2, [3, [4]], 5] |
| 7346 |
*/ |
| 7347 |
function flatten(array) { |
| 7348 |
var length = array == null ? 0 : array.length; |
| 7349 |
return length ? baseFlatten(array, 1) : []; |
| 7350 |
} |
| 7351 |
|
| 7352 |
/** |
| 7353 |
* Recursively flattens `array`. |
| 7354 |
* |
| 7355 |
* @static |
| 7356 |
* @memberOf _ |
| 7357 |
* @since 3.0.0 |
| 7358 |
* @category Array |
| 7359 |
* @param {Array} array The array to flatten. |
| 7360 |
* @returns {Array} Returns the new flattened array. |
| 7361 |
* @example |
| 7362 |
* |
| 7363 |
* _.flattenDeep([1, [2, [3, [4]], 5]]); |
| 7364 |
* // => [1, 2, 3, 4, 5] |
| 7365 |
*/ |
| 7366 |
function flattenDeep(array) { |
| 7367 |
var length = array == null ? 0 : array.length; |
| 7368 |
return length ? baseFlatten(array, INFINITY) : []; |
| 7369 |
} |
| 7370 |
|
| 7371 |
/** |
| 7372 |
* Recursively flatten `array` up to `depth` times. |
| 7373 |
* |
| 7374 |
* @static |
| 7375 |
* @memberOf _ |
| 7376 |
* @since 4.4.0 |
| 7377 |
* @category Array |
| 7378 |
* @param {Array} array The array to flatten. |
| 7379 |
* @param {number} [depth=1] The maximum recursion depth. |
| 7380 |
* @returns {Array} Returns the new flattened array. |
| 7381 |
* @example |
| 7382 |
* |
| 7383 |
* var array = [1, [2, [3, [4]], 5]]; |
| 7384 |
* |
| 7385 |
* _.flattenDepth(array, 1); |
| 7386 |
* // => [1, 2, [3, [4]], 5] |
| 7387 |
* |
| 7388 |
* _.flattenDepth(array, 2); |
| 7389 |
* // => [1, 2, 3, [4], 5] |
| 7390 |
*/ |
| 7391 |
function flattenDepth(array, depth) { |
| 7392 |
var length = array == null ? 0 : array.length; |
| 7393 |
if (!length) { |
| 7394 |
return []; |
| 7395 |
} |
| 7396 |
depth = depth === undefined ? 1 : toInteger(depth); |
| 7397 |
return baseFlatten(array, depth); |
| 7398 |
} |
| 7399 |
|
| 7400 |
/** |
| 7401 |
* The inverse of `_.toPairs`; this method returns an object composed |
| 7402 |
* from key-value `pairs`. |
| 7403 |
* |
| 7404 |
* @static |
| 7405 |
* @memberOf _ |
| 7406 |
* @since 4.0.0 |
| 7407 |
* @category Array |
| 7408 |
* @param {Array} pairs The key-value pairs. |
| 7409 |
* @returns {Object} Returns the new object. |
| 7410 |
* @example |
| 7411 |
* |
| 7412 |
* _.fromPairs([['a', 1], ['b', 2]]); |
| 7413 |
* // => { 'a': 1, 'b': 2 } |
| 7414 |
*/ |
| 7415 |
function fromPairs(pairs) { |
| 7416 |
var index = -1, |
| 7417 |
length = pairs == null ? 0 : pairs.length, |
| 7418 |
result = {}; |
| 7419 |
|
| 7420 |
while (++index < length) { |
| 7421 |
var pair = pairs[index]; |
| 7422 |
result[pair[0]] = pair[1]; |
| 7423 |
} |
| 7424 |
return result; |
| 7425 |
} |
| 7426 |
|
| 7427 |
/** |
| 7428 |
* Gets the first element of `array`. |
| 7429 |
* |
| 7430 |
* @static |
| 7431 |
* @memberOf _ |
| 7432 |
* @since 0.1.0 |
| 7433 |
* @alias first |
| 7434 |
* @category Array |
| 7435 |
* @param {Array} array The array to query. |
| 7436 |
* @returns {*} Returns the first element of `array`. |
| 7437 |
* @example |
| 7438 |
* |
| 7439 |
* _.head([1, 2, 3]); |
| 7440 |
* // => 1 |
| 7441 |
* |
| 7442 |
* _.head([]); |
| 7443 |
* // => undefined |
| 7444 |
*/ |
| 7445 |
function head(array) { |
| 7446 |
return (array && array.length) ? array[0] : undefined; |
| 7447 |
} |
| 7448 |
|
| 7449 |
/** |
| 7450 |
* Gets the index at which the first occurrence of `value` is found in `array` |
| 7451 |
* using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) |
| 7452 |
* for equality comparisons. If `fromIndex` is negative, it's used as the |
| 7453 |
* offset from the end of `array`. |
| 7454 |
* |
| 7455 |
* @static |
| 7456 |
* @memberOf _ |
| 7457 |
* @since 0.1.0 |
| 7458 |
* @category Array |
| 7459 |
* @param {Array} array The array to inspect. |
| 7460 |
* @param {*} value The value to search for. |
| 7461 |
* @param {number} [fromIndex=0] The index to search from. |
| 7462 |
* @returns {number} Returns the index of the matched value, else `-1`. |
| 7463 |
* @example |
| 7464 |
* |
| 7465 |
* _.indexOf([1, 2, 1, 2], 2); |
| 7466 |
* // => 1 |
| 7467 |
* |
| 7468 |
* // Search from the `fromIndex`. |
| 7469 |
* _.indexOf([1, 2, 1, 2], 2, 2); |
| 7470 |
* // => 3 |
| 7471 |
*/ |
| 7472 |
function indexOf(array, value, fromIndex) { |
| 7473 |
var length = array == null ? 0 : array.length; |
| 7474 |
if (!length) { |
| 7475 |
return -1; |
| 7476 |
} |
| 7477 |
var index = fromIndex == null ? 0 : toInteger(fromIndex); |
| 7478 |
if (index < 0) { |
| 7479 |
index = nativeMax(length + index, 0); |
| 7480 |
} |
| 7481 |
return baseIndexOf(array, value, index); |
| 7482 |
} |
| 7483 |
|
| 7484 |
/** |
| 7485 |
* Gets all but the last element of `array`. |
| 7486 |
* |
| 7487 |
* @static |
| 7488 |
* @memberOf _ |
| 7489 |
* @since 0.1.0 |
| 7490 |
* @category Array |
| 7491 |
* @param {Array} array The array to query. |
| 7492 |
* @returns {Array} Returns the slice of `array`. |
| 7493 |
* @example |
| 7494 |
* |
| 7495 |
* _.initial([1, 2, 3]); |
| 7496 |
* // => [1, 2] |
| 7497 |
*/ |
| 7498 |
function initial(array) { |
| 7499 |
var length = array == null ? 0 : array.length; |
| 7500 |
return length ? baseSlice(array, 0, -1) : []; |
| 7501 |
} |
| 7502 |
|
| 7503 |
/** |
| 7504 |
* Creates an array of unique values that are included in all given arrays |
| 7505 |
* using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) |
| 7506 |
* for equality comparisons. The order and references of result values are |
| 7507 |
* determined by the first array. |
| 7508 |
* |
| 7509 |
* @static |
| 7510 |
* @memberOf _ |
| 7511 |
* @since 0.1.0 |
| 7512 |
* @category Array |
| 7513 |
* @param {...Array} [arrays] The arrays to inspect. |
| 7514 |
* @returns {Array} Returns the new array of intersecting values. |
| 7515 |
* @example |
| 7516 |
* |
| 7517 |
* _.intersection([2, 1], [2, 3]); |
| 7518 |
* // => [2] |
| 7519 |
*/ |
| 7520 |
var intersection = baseRest(function(arrays) { |
| 7521 |
var mapped = arrayMap(arrays, castArrayLikeObject); |
| 7522 |
return (mapped.length && mapped[0] === arrays[0]) |
| 7523 |
? baseIntersection(mapped) |
| 7524 |
: []; |
| 7525 |
}); |
| 7526 |
|
| 7527 |
/** |
| 7528 |
* This method is like `_.intersection` except that it accepts `iteratee` |
| 7529 |
* which is invoked for each element of each `arrays` to generate the criterion |
| 7530 |
* by which they're compared. The order and references of result values are |
| 7531 |
* determined by the first array. The iteratee is invoked with one argument: |
| 7532 |
* (value). |
| 7533 |
* |
| 7534 |
* @static |
| 7535 |
* @memberOf _ |
| 7536 |
* @since 4.0.0 |
| 7537 |
* @category Array |
| 7538 |
* @param {...Array} [arrays] The arrays to inspect. |
| 7539 |
* @param {Function} [iteratee=_.identity] The iteratee invoked per element. |
| 7540 |
* @returns {Array} Returns the new array of intersecting values. |
| 7541 |
* @example |
| 7542 |
* |
| 7543 |
* _.intersectionBy([2.1, 1.2], [2.3, 3.4], Math.floor); |
| 7544 |
* // => [2.1] |
| 7545 |
* |
| 7546 |
* // The `_.property` iteratee shorthand. |
| 7547 |
* _.intersectionBy([{ 'x': 1 }], [{ 'x': 2 }, { 'x': 1 }], 'x'); |
| 7548 |
* // => [{ 'x': 1 }] |
| 7549 |
*/ |
| 7550 |
var intersectionBy = baseRest(function(arrays) { |
| 7551 |
var iteratee = last(arrays), |
| 7552 |
mapped = arrayMap(arrays, castArrayLikeObject); |
| 7553 |
|
| 7554 |
if (iteratee === last(mapped)) { |
| 7555 |
iteratee = undefined; |
| 7556 |
} else { |
| 7557 |
mapped.pop(); |
| 7558 |
} |
| 7559 |
return (mapped.length && mapped[0] === arrays[0]) |
| 7560 |
? baseIntersection(mapped, getIteratee(iteratee, 2)) |
| 7561 |
: []; |
| 7562 |
}); |
| 7563 |
|
| 7564 |
/** |
| 7565 |
* This method is like `_.intersection` except that it accepts `comparator` |
| 7566 |
* which is invoked to compare elements of `arrays`. The order and references |
| 7567 |
* of result values are determined by the first array. The comparator is |
| 7568 |
* invoked with two arguments: (arrVal, othVal). |
| 7569 |
* |
| 7570 |
* @static |
| 7571 |
* @memberOf _ |
| 7572 |
* @since 4.0.0 |
| 7573 |
* @category Array |
| 7574 |
* @param {...Array} [arrays] The arrays to inspect. |
| 7575 |
* @param {Function} [comparator] The comparator invoked per element. |
| 7576 |
* @returns {Array} Returns the new array of intersecting values. |
| 7577 |
* @example |
| 7578 |
* |
| 7579 |
* var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }]; |
| 7580 |
* var others = [{ 'x': 1, 'y': 1 }, { 'x': 1, 'y': 2 }]; |
| 7581 |
* |
| 7582 |
* _.intersectionWith(objects, others, _.isEqual); |
| 7583 |
* // => [{ 'x': 1, 'y': 2 }] |
| 7584 |
*/ |
| 7585 |
var intersectionWith = baseRest(function(arrays) { |
| 7586 |
var comparator = last(arrays), |
| 7587 |
mapped = arrayMap(arrays, castArrayLikeObject); |
| 7588 |
|
| 7589 |
comparator = typeof comparator == 'function' ? comparator : undefined; |
| 7590 |
if (comparator) { |
| 7591 |
mapped.pop(); |
| 7592 |
} |
| 7593 |
return (mapped.length && mapped[0] === arrays[0]) |
| 7594 |
? baseIntersection(mapped, undefined, comparator) |
| 7595 |
: []; |
| 7596 |
}); |
| 7597 |
|
| 7598 |
/** |
| 7599 |
* Converts all elements in `array` into a string separated by `separator`. |
| 7600 |
* |
| 7601 |
* @static |
| 7602 |
* @memberOf _ |
| 7603 |
* @since 4.0.0 |
| 7604 |
* @category Array |
| 7605 |
* @param {Array} array The array to convert. |
| 7606 |
* @param {string} [separator=','] The element separator. |
| 7607 |
* @returns {string} Returns the joined string. |
| 7608 |
* @example |
| 7609 |
* |
| 7610 |
* _.join(['a', 'b', 'c'], '~'); |
| 7611 |
* // => 'a~b~c' |
| 7612 |
*/ |
| 7613 |
function join(array, separator) { |
| 7614 |
return array == null ? '' : nativeJoin.call(array, separator); |
| 7615 |
} |
| 7616 |
|
| 7617 |
/** |
| 7618 |
* Gets the last element of `array`. |
| 7619 |
* |
| 7620 |
* @static |
| 7621 |
* @memberOf _ |
| 7622 |
* @since 0.1.0 |
| 7623 |
* @category Array |
| 7624 |
* @param {Array} array The array to query. |
| 7625 |
* @returns {*} Returns the last element of `array`. |
| 7626 |
* @example |
| 7627 |
* |
| 7628 |
* _.last([1, 2, 3]); |
| 7629 |
* // => 3 |
| 7630 |
*/ |
| 7631 |
function last(array) { |
| 7632 |
var length = array == null ? 0 : array.length; |
| 7633 |
return length ? array[length - 1] : undefined; |
| 7634 |
} |
| 7635 |
|
| 7636 |
/** |
| 7637 |
* This method is like `_.indexOf` except that it iterates over elements of |
| 7638 |
* `array` from right to left. |
| 7639 |
* |
| 7640 |
* @static |
| 7641 |
* @memberOf _ |
| 7642 |
* @since 0.1.0 |
| 7643 |
* @category Array |
| 7644 |
* @param {Array} array The array to inspect. |
| 7645 |
* @param {*} value The value to search for. |
| 7646 |
* @param {number} [fromIndex=array.length-1] The index to search from. |
| 7647 |
* @returns {number} Returns the index of the matched value, else `-1`. |
| 7648 |
* @example |
| 7649 |
* |
| 7650 |
* _.lastIndexOf([1, 2, 1, 2], 2); |
| 7651 |
* // => 3 |
| 7652 |
* |
| 7653 |
* // Search from the `fromIndex`. |
| 7654 |
* _.lastIndexOf([1, 2, 1, 2], 2, 2); |
| 7655 |
* // => 1 |
| 7656 |
*/ |
| 7657 |
function lastIndexOf(array, value, fromIndex) { |
| 7658 |
var length = array == null ? 0 : array.length; |
| 7659 |
if (!length) { |
| 7660 |
return -1; |
| 7661 |
} |
| 7662 |
var index = length; |
| 7663 |
if (fromIndex !== undefined) { |
| 7664 |
index = toInteger(fromIndex); |
| 7665 |
index = index < 0 ? nativeMax(length + index, 0) : nativeMin(index, length - 1); |
| 7666 |
} |
| 7667 |
return value === value |
| 7668 |
? strictLastIndexOf(array, value, index) |
| 7669 |
: baseFindIndex(array, baseIsNaN, index, true); |
| 7670 |
} |
| 7671 |
|
| 7672 |
/** |
| 7673 |
* Gets the element at index `n` of `array`. If `n` is negative, the nth |
| 7674 |
* element from the end is returned. |
| 7675 |
* |
| 7676 |
* @static |
| 7677 |
* @memberOf _ |
| 7678 |
* @since 4.11.0 |
| 7679 |
* @category Array |
| 7680 |
* @param {Array} array The array to query. |
| 7681 |
* @param {number} [n=0] The index of the element to return. |
| 7682 |
* @returns {*} Returns the nth element of `array`. |
| 7683 |
* @example |
| 7684 |
* |
| 7685 |
* var array = ['a', 'b', 'c', 'd']; |
| 7686 |
* |
| 7687 |
* _.nth(array, 1); |
| 7688 |
* // => 'b' |
| 7689 |
* |
| 7690 |
* _.nth(array, -2); |
| 7691 |
* // => 'c'; |
| 7692 |
*/ |
| 7693 |
function nth(array, n) { |
| 7694 |
return (array && array.length) ? baseNth(array, toInteger(n)) : undefined; |
| 7695 |
} |
| 7696 |
|
| 7697 |
/** |
| 7698 |
* Removes all given values from `array` using |
| 7699 |
* [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) |
| 7700 |
* for equality comparisons. |
| 7701 |
* |
| 7702 |
* **Note:** Unlike `_.without`, this method mutates `array`. Use `_.remove` |
| 7703 |
* to remove elements from an array by predicate. |
| 7704 |
* |
| 7705 |
* @static |
| 7706 |
* @memberOf _ |
| 7707 |
* @since 2.0.0 |
| 7708 |
* @category Array |
| 7709 |
* @param {Array} array The array to modify. |
| 7710 |
* @param {...*} [values] The values to remove. |
| 7711 |
* @returns {Array} Returns `array`. |
| 7712 |
* @example |
| 7713 |
* |
| 7714 |
* var array = ['a', 'b', 'c', 'a', 'b', 'c']; |
| 7715 |
* |
| 7716 |
* _.pull(array, 'a', 'c'); |
| 7717 |
* console.log(array); |
| 7718 |
* // => ['b', 'b'] |
| 7719 |
*/ |
| 7720 |
var pull = baseRest(pullAll); |
| 7721 |
|
| 7722 |
/** |
| 7723 |
* This method is like `_.pull` except that it accepts an array of values to remove. |
| 7724 |
* |
| 7725 |
* **Note:** Unlike `_.difference`, this method mutates `array`. |
| 7726 |
* |
| 7727 |
* @static |
| 7728 |
* @memberOf _ |
| 7729 |
* @since 4.0.0 |
| 7730 |
* @category Array |
| 7731 |
* @param {Array} array The array to modify. |
| 7732 |
* @param {Array} values The values to remove. |
| 7733 |
* @returns {Array} Returns `array`. |
| 7734 |
* @example |
| 7735 |
* |
| 7736 |
* var array = ['a', 'b', 'c', 'a', 'b', 'c']; |
| 7737 |
* |
| 7738 |
* _.pullAll(array, ['a', 'c']); |
| 7739 |
* console.log(array); |
| 7740 |
* // => ['b', 'b'] |
| 7741 |
*/ |
| 7742 |
function pullAll(array, values) { |
| 7743 |
return (array && array.length && values && values.length) |
| 7744 |
? basePullAll(array, values) |
| 7745 |
: array; |
| 7746 |
} |
| 7747 |
|
| 7748 |
/** |
| 7749 |
* This method is like `_.pullAll` except that it accepts `iteratee` which is |
| 7750 |
* invoked for each element of `array` and `values` to generate the criterion |
| 7751 |
* by which they're compared. The iteratee is invoked with one argument: (value). |
| 7752 |
* |
| 7753 |
* **Note:** Unlike `_.differenceBy`, this method mutates `array`. |
| 7754 |
* |
| 7755 |
* @static |
| 7756 |
* @memberOf _ |
| 7757 |
* @since 4.0.0 |
| 7758 |
* @category Array |
| 7759 |
* @param {Array} array The array to modify. |
| 7760 |
* @param {Array} values The values to remove. |
| 7761 |
* @param {Function} [iteratee=_.identity] The iteratee invoked per element. |
| 7762 |
* @returns {Array} Returns `array`. |
| 7763 |
* @example |
| 7764 |
* |
| 7765 |
* var array = [{ 'x': 1 }, { 'x': 2 }, { 'x': 3 }, { 'x': 1 }]; |
| 7766 |
* |
| 7767 |
* _.pullAllBy(array, [{ 'x': 1 }, { 'x': 3 }], 'x'); |
| 7768 |
* console.log(array); |
| 7769 |
* // => [{ 'x': 2 }] |
| 7770 |
*/ |
| 7771 |
function pullAllBy(array, values, iteratee) { |
| 7772 |
return (array && array.length && values && values.length) |
| 7773 |
? basePullAll(array, values, getIteratee(iteratee, 2)) |
| 7774 |
: array; |
| 7775 |
} |
| 7776 |
|
| 7777 |
/** |
| 7778 |
* This method is like `_.pullAll` except that it accepts `comparator` which |
| 7779 |
* is invoked to compare elements of `array` to `values`. The comparator is |
| 7780 |
* invoked with two arguments: (arrVal, othVal). |
| 7781 |
* |
| 7782 |
* **Note:** Unlike `_.differenceWith`, this method mutates `array`. |
| 7783 |
* |
| 7784 |
* @static |
| 7785 |
* @memberOf _ |
| 7786 |
* @since 4.6.0 |
| 7787 |
* @category Array |
| 7788 |
* @param {Array} array The array to modify. |
| 7789 |
* @param {Array} values The values to remove. |
| 7790 |
* @param {Function} [comparator] The comparator invoked per element. |
| 7791 |
* @returns {Array} Returns `array`. |
| 7792 |
* @example |
| 7793 |
* |
| 7794 |
* var array = [{ 'x': 1, 'y': 2 }, { 'x': 3, 'y': 4 }, { 'x': 5, 'y': 6 }]; |
| 7795 |
* |
| 7796 |
* _.pullAllWith(array, [{ 'x': 3, 'y': 4 }], _.isEqual); |
| 7797 |
* console.log(array); |
| 7798 |
* // => [{ 'x': 1, 'y': 2 }, { 'x': 5, 'y': 6 }] |
| 7799 |
*/ |
| 7800 |
function pullAllWith(array, values, comparator) { |
| 7801 |
return (array && array.length && values && values.length) |
| 7802 |
? basePullAll(array, values, undefined, comparator) |
| 7803 |
: array; |
| 7804 |
} |
| 7805 |
|
| 7806 |
/** |
| 7807 |
* Removes elements from `array` corresponding to `indexes` and returns an |
| 7808 |
* array of removed elements. |
| 7809 |
* |
| 7810 |
* **Note:** Unlike `_.at`, this method mutates `array`. |
| 7811 |
* |
| 7812 |
* @static |
| 7813 |
* @memberOf _ |
| 7814 |
* @since 3.0.0 |
| 7815 |
* @category Array |
| 7816 |
* @param {Array} array The array to modify. |
| 7817 |
* @param {...(number|number[])} [indexes] The indexes of elements to remove. |
| 7818 |
* @returns {Array} Returns the new array of removed elements. |
| 7819 |
* @example |
| 7820 |
* |
| 7821 |
* var array = ['a', 'b', 'c', 'd']; |
| 7822 |
* var pulled = _.pullAt(array, [1, 3]); |
| 7823 |
* |
| 7824 |
* console.log(array); |
| 7825 |
* // => ['a', 'c'] |
| 7826 |
* |
| 7827 |
* console.log(pulled); |
| 7828 |
* // => ['b', 'd'] |
| 7829 |
*/ |
| 7830 |
var pullAt = flatRest(function(array, indexes) { |
| 7831 |
var length = array == null ? 0 : array.length, |
| 7832 |
result = baseAt(array, indexes); |
| 7833 |
|
| 7834 |
basePullAt(array, arrayMap(indexes, function(index) { |
| 7835 |
return isIndex(index, length) ? +index : index; |
| 7836 |
}).sort(compareAscending)); |
| 7837 |
|
| 7838 |
return result; |
| 7839 |
}); |
| 7840 |
|
| 7841 |
/** |
| 7842 |
* Removes all elements from `array` that `predicate` returns truthy for |
| 7843 |
* and returns an array of the removed elements. The predicate is invoked |
| 7844 |
* with three arguments: (value, index, array). |
| 7845 |
* |
| 7846 |
* **Note:** Unlike `_.filter`, this method mutates `array`. Use `_.pull` |
| 7847 |
* to pull elements from an array by value. |
| 7848 |
* |
| 7849 |
* @static |
| 7850 |
* @memberOf _ |
| 7851 |
* @since 2.0.0 |
| 7852 |
* @category Array |
| 7853 |
* @param {Array} array The array to modify. |
| 7854 |
* @param {Function} [predicate=_.identity] The function invoked per iteration. |
| 7855 |
* @returns {Array} Returns the new array of removed elements. |
| 7856 |
* @example |
| 7857 |
* |
| 7858 |
* var array = [1, 2, 3, 4]; |
| 7859 |
* var evens = _.remove(array, function(n) { |
| 7860 |
* return n % 2 == 0; |
| 7861 |
* }); |
| 7862 |
* |
| 7863 |
* console.log(array); |
| 7864 |
* // => [1, 3] |
| 7865 |
* |
| 7866 |
* console.log(evens); |
| 7867 |
* // => [2, 4] |
| 7868 |
*/ |
| 7869 |
function remove(array, predicate) { |
| 7870 |
var result = []; |
| 7871 |
if (!(array && array.length)) { |
| 7872 |
return result; |
| 7873 |
} |
| 7874 |
var index = -1, |
| 7875 |
indexes = [], |
| 7876 |
length = array.length; |
| 7877 |
|
| 7878 |
predicate = getIteratee(predicate, 3); |
| 7879 |
while (++index < length) { |
| 7880 |
var value = array[index]; |
| 7881 |
if (predicate(value, index, array)) { |
| 7882 |
result.push(value); |
| 7883 |
indexes.push(index); |
| 7884 |
} |
| 7885 |
} |
| 7886 |
basePullAt(array, indexes); |
| 7887 |
return result; |
| 7888 |
} |
| 7889 |
|
| 7890 |
/** |
| 7891 |
* Reverses `array` so that the first element becomes the last, the second |
| 7892 |
* element becomes the second to last, and so on. |
| 7893 |
* |
| 7894 |
* **Note:** This method mutates `array` and is based on |
| 7895 |
* [`Array#reverse`](https://mdn.io/Array/reverse). |
| 7896 |
* |
| 7897 |
* @static |
| 7898 |
* @memberOf _ |
| 7899 |
* @since 4.0.0 |
| 7900 |
* @category Array |
| 7901 |
* @param {Array} array The array to modify. |
| 7902 |
* @returns {Array} Returns `array`. |
| 7903 |
* @example |
| 7904 |
* |
| 7905 |
* var array = [1, 2, 3]; |
| 7906 |
* |
| 7907 |
* _.reverse(array); |
| 7908 |
* // => [3, 2, 1] |
| 7909 |
* |
| 7910 |
* console.log(array); |
| 7911 |
* // => [3, 2, 1] |
| 7912 |
*/ |
| 7913 |
function reverse(array) { |
| 7914 |
return array == null ? array : nativeReverse.call(array); |
| 7915 |
} |
| 7916 |
|
| 7917 |
/** |
| 7918 |
* Creates a slice of `array` from `start` up to, but not including, `end`. |
| 7919 |
* |
| 7920 |
* **Note:** This method is used instead of |
| 7921 |
* [`Array#slice`](https://mdn.io/Array/slice) to ensure dense arrays are |
| 7922 |
* returned. |
| 7923 |
* |
| 7924 |
* @static |
| 7925 |
* @memberOf _ |
| 7926 |
* @since 3.0.0 |
| 7927 |
* @category Array |
| 7928 |
* @param {Array} array The array to slice. |
| 7929 |
* @param {number} [start=0] The start position. |
| 7930 |
* @param {number} [end=array.length] The end position. |
| 7931 |
* @returns {Array} Returns the slice of `array`. |
| 7932 |
*/ |
| 7933 |
function slice(array, start, end) { |
| 7934 |
var length = array == null ? 0 : array.length; |
| 7935 |
if (!length) { |
| 7936 |
return []; |
| 7937 |
} |
| 7938 |
if (end && typeof end != 'number' && isIterateeCall(array, start, end)) { |
| 7939 |
start = 0; |
| 7940 |
end = length; |
| 7941 |
} |
| 7942 |
else { |
| 7943 |
start = start == null ? 0 : toInteger(start); |
| 7944 |
end = end === undefined ? length : toInteger(end); |
| 7945 |
} |
| 7946 |
return baseSlice(array, start, end); |
| 7947 |
} |
| 7948 |
|
| 7949 |
/** |
| 7950 |
* Uses a binary search to determine the lowest index at which `value` |
| 7951 |
* should be inserted into `array` in order to maintain its sort order. |
| 7952 |
* |
| 7953 |
* @static |
| 7954 |
* @memberOf _ |
| 7955 |
* @since 0.1.0 |
| 7956 |
* @category Array |
| 7957 |
* @param {Array} array The sorted array to inspect. |
| 7958 |
* @param {*} value The value to evaluate. |
| 7959 |
* @returns {number} Returns the index at which `value` should be inserted |
| 7960 |
* into `array`. |
| 7961 |
* @example |
| 7962 |
* |
| 7963 |
* _.sortedIndex([30, 50], 40); |
| 7964 |
* // => 1 |
| 7965 |
*/ |
| 7966 |
function sortedIndex(array, value) { |
| 7967 |
return baseSortedIndex(array, value); |
| 7968 |
} |
| 7969 |
|
| 7970 |
/** |
| 7971 |
* This method is like `_.sortedIndex` except that it accepts `iteratee` |
| 7972 |
* which is invoked for `value` and each element of `array` to compute their |
| 7973 |
* sort ranking. The iteratee is invoked with one argument: (value). |
| 7974 |
* |
| 7975 |
* @static |
| 7976 |
* @memberOf _ |
| 7977 |
* @since 4.0.0 |
| 7978 |
* @category Array |
| 7979 |
* @param {Array} array The sorted array to inspect. |
| 7980 |
* @param {*} value The value to evaluate. |
| 7981 |
* @param {Function} [iteratee=_.identity] The iteratee invoked per element. |
| 7982 |
* @returns {number} Returns the index at which `value` should be inserted |
| 7983 |
* into `array`. |
| 7984 |
* @example |
| 7985 |
* |
| 7986 |
* var objects = [{ 'x': 4 }, { 'x': 5 }]; |
| 7987 |
* |
| 7988 |
* _.sortedIndexBy(objects, { 'x': 4 }, function(o) { return o.x; }); |
| 7989 |
* // => 0 |
| 7990 |
* |
| 7991 |
* // The `_.property` iteratee shorthand. |
| 7992 |
* _.sortedIndexBy(objects, { 'x': 4 }, 'x'); |
| 7993 |
* // => 0 |
| 7994 |
*/ |
| 7995 |
function sortedIndexBy(array, value, iteratee) { |
| 7996 |
return baseSortedIndexBy(array, value, getIteratee(iteratee, 2)); |
| 7997 |
} |
| 7998 |
|
| 7999 |
/** |
| 8000 |
* This method is like `_.indexOf` except that it performs a binary |
| 8001 |
* search on a sorted `array`. |
| 8002 |
* |
| 8003 |
* @static |
| 8004 |
* @memberOf _ |
| 8005 |
* @since 4.0.0 |
| 8006 |
* @category Array |
| 8007 |
* @param {Array} array The array to inspect. |
| 8008 |
* @param {*} value The value to search for. |
| 8009 |
* @returns {number} Returns the index of the matched value, else `-1`. |
| 8010 |
* @example |
| 8011 |
* |
| 8012 |
* _.sortedIndexOf([4, 5, 5, 5, 6], 5); |
| 8013 |
* // => 1 |
| 8014 |
*/ |
| 8015 |
function sortedIndexOf(array, value) { |
| 8016 |
var length = array == null ? 0 : array.length; |
| 8017 |
if (length) { |
| 8018 |
var index = baseSortedIndex(array, value); |
| 8019 |
if (index < length && eq(array[index], value)) { |
| 8020 |
return index; |
| 8021 |
} |
| 8022 |
} |
| 8023 |
return -1; |
| 8024 |
} |
| 8025 |
|
| 8026 |
/** |
| 8027 |
* This method is like `_.sortedIndex` except that it returns the highest |
| 8028 |
* index at which `value` should be inserted into `array` in order to |
| 8029 |
* maintain its sort order. |
| 8030 |
* |
| 8031 |
* @static |
| 8032 |
* @memberOf _ |
| 8033 |
* @since 3.0.0 |
| 8034 |
* @category Array |
| 8035 |
* @param {Array} array The sorted array to inspect. |
| 8036 |
* @param {*} value The value to evaluate. |
| 8037 |
* @returns {number} Returns the index at which `value` should be inserted |
| 8038 |
* into `array`. |
| 8039 |
* @example |
| 8040 |
* |
| 8041 |
* _.sortedLastIndex([4, 5, 5, 5, 6], 5); |
| 8042 |
* // => 4 |
| 8043 |
*/ |
| 8044 |
function sortedLastIndex(array, value) { |
| 8045 |
return baseSortedIndex(array, value, true); |
| 8046 |
} |
| 8047 |
|
| 8048 |
/** |
| 8049 |
* This method is like `_.sortedLastIndex` except that it accepts `iteratee` |
| 8050 |
* which is invoked for `value` and each element of `array` to compute their |
| 8051 |
* sort ranking. The iteratee is invoked with one argument: (value). |
| 8052 |
* |
| 8053 |
* @static |
| 8054 |
* @memberOf _ |
| 8055 |
* @since 4.0.0 |
| 8056 |
* @category Array |
| 8057 |
* @param {Array} array The sorted array to inspect. |
| 8058 |
* @param {*} value The value to evaluate. |
| 8059 |
* @param {Function} [iteratee=_.identity] The iteratee invoked per element. |
| 8060 |
* @returns {number} Returns the index at which `value` should be inserted |
| 8061 |
* into `array`. |
| 8062 |
* @example |
| 8063 |
* |
| 8064 |
* var objects = [{ 'x': 4 }, { 'x': 5 }]; |
| 8065 |
* |
| 8066 |
* _.sortedLastIndexBy(objects, { 'x': 4 }, function(o) { return o.x; }); |
| 8067 |
* // => 1 |
| 8068 |
* |
| 8069 |
* // The `_.property` iteratee shorthand. |
| 8070 |
* _.sortedLastIndexBy(objects, { 'x': 4 }, 'x'); |
| 8071 |
* // => 1 |
| 8072 |
*/ |
| 8073 |
function sortedLastIndexBy(array, value, iteratee) { |
| 8074 |
return baseSortedIndexBy(array, value, getIteratee(iteratee, 2), true); |
| 8075 |
} |
| 8076 |
|
| 8077 |
/** |
| 8078 |
* This method is like `_.lastIndexOf` except that it performs a binary |
| 8079 |
* search on a sorted `array`. |
| 8080 |
* |
| 8081 |
* @static |
| 8082 |
* @memberOf _ |
| 8083 |
* @since 4.0.0 |
| 8084 |
* @category Array |
| 8085 |
* @param {Array} array The array to inspect. |
| 8086 |
* @param {*} value The value to search for. |
| 8087 |
* @returns {number} Returns the index of the matched value, else `-1`. |
| 8088 |
* @example |
| 8089 |
* |
| 8090 |
* _.sortedLastIndexOf([4, 5, 5, 5, 6], 5); |
| 8091 |
* // => 3 |
| 8092 |
*/ |
| 8093 |
function sortedLastIndexOf(array, value) { |
| 8094 |
var length = array == null ? 0 : array.length; |
| 8095 |
if (length) { |
| 8096 |
var index = baseSortedIndex(array, value, true) - 1; |
| 8097 |
if (eq(array[index], value)) { |
| 8098 |
return index; |
| 8099 |
} |
| 8100 |
} |
| 8101 |
return -1; |
| 8102 |
} |
| 8103 |
|
| 8104 |
/** |
| 8105 |
* This method is like `_.uniq` except that it's designed and optimized |
| 8106 |
* for sorted arrays. |
| 8107 |
* |
| 8108 |
* @static |
| 8109 |
* @memberOf _ |
| 8110 |
* @since 4.0.0 |
| 8111 |
* @category Array |
| 8112 |
* @param {Array} array The array to inspect. |
| 8113 |
* @returns {Array} Returns the new duplicate free array. |
| 8114 |
* @example |
| 8115 |
* |
| 8116 |
* _.sortedUniq([1, 1, 2]); |
| 8117 |
* // => [1, 2] |
| 8118 |
*/ |
| 8119 |
function sortedUniq(array) { |
| 8120 |
return (array && array.length) |
| 8121 |
? baseSortedUniq(array) |
| 8122 |
: []; |
| 8123 |
} |
| 8124 |
|
| 8125 |
/** |
| 8126 |
* This method is like `_.uniqBy` except that it's designed and optimized |
| 8127 |
* for sorted arrays. |
| 8128 |
* |
| 8129 |
* @static |
| 8130 |
* @memberOf _ |
| 8131 |
* @since 4.0.0 |
| 8132 |
* @category Array |
| 8133 |
* @param {Array} array The array to inspect. |
| 8134 |
* @param {Function} [iteratee] The iteratee invoked per element. |
| 8135 |
* @returns {Array} Returns the new duplicate free array. |
| 8136 |
* @example |
| 8137 |
* |
| 8138 |
* _.sortedUniqBy([1.1, 1.2, 2.3, 2.4], Math.floor); |
| 8139 |
* // => [1.1, 2.3] |
| 8140 |
*/ |
| 8141 |
function sortedUniqBy(array, iteratee) { |
| 8142 |
return (array && array.length) |
| 8143 |
? baseSortedUniq(array, getIteratee(iteratee, 2)) |
| 8144 |
: []; |
| 8145 |
} |
| 8146 |
|
| 8147 |
/** |
| 8148 |
* Gets all but the first element of `array`. |
| 8149 |
* |
| 8150 |
* @static |
| 8151 |
* @memberOf _ |
| 8152 |
* @since 4.0.0 |
| 8153 |
* @category Array |
| 8154 |
* @param {Array} array The array to query. |
| 8155 |
* @returns {Array} Returns the slice of `array`. |
| 8156 |
* @example |
| 8157 |
* |
| 8158 |
* _.tail([1, 2, 3]); |
| 8159 |
* // => [2, 3] |
| 8160 |
*/ |
| 8161 |
function tail(array) { |
| 8162 |
var length = array == null ? 0 : array.length; |
| 8163 |
return length ? baseSlice(array, 1, length) : []; |
| 8164 |
} |
| 8165 |
|
| 8166 |
/** |
| 8167 |
* Creates a slice of `array` with `n` elements taken from the beginning. |
| 8168 |
* |
| 8169 |
* @static |
| 8170 |
* @memberOf _ |
| 8171 |
* @since 0.1.0 |
| 8172 |
* @category Array |
| 8173 |
* @param {Array} array The array to query. |
| 8174 |
* @param {number} [n=1] The number of elements to take. |
| 8175 |
* @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. |
| 8176 |
* @returns {Array} Returns the slice of `array`. |
| 8177 |
* @example |
| 8178 |
* |
| 8179 |
* _.take([1, 2, 3]); |
| 8180 |
* // => [1] |
| 8181 |
* |
| 8182 |
* _.take([1, 2, 3], 2); |
| 8183 |
* // => [1, 2] |
| 8184 |
* |
| 8185 |
* _.take([1, 2, 3], 5); |
| 8186 |
* // => [1, 2, 3] |
| 8187 |
* |
| 8188 |
* _.take([1, 2, 3], 0); |
| 8189 |
* // => [] |
| 8190 |
*/ |
| 8191 |
function take(array, n, guard) { |
| 8192 |
if (!(array && array.length)) { |
| 8193 |
return []; |
| 8194 |
} |
| 8195 |
n = (guard || n === undefined) ? 1 : toInteger(n); |
| 8196 |
return baseSlice(array, 0, n < 0 ? 0 : n); |
| 8197 |
} |
| 8198 |
|
| 8199 |
/** |
| 8200 |
* Creates a slice of `array` with `n` elements taken from the end. |
| 8201 |
* |
| 8202 |
* @static |
| 8203 |
* @memberOf _ |
| 8204 |
* @since 3.0.0 |
| 8205 |
* @category Array |
| 8206 |
* @param {Array} array The array to query. |
| 8207 |
* @param {number} [n=1] The number of elements to take. |
| 8208 |
* @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. |
| 8209 |
* @returns {Array} Returns the slice of `array`. |
| 8210 |
* @example |
| 8211 |
* |
| 8212 |
* _.takeRight([1, 2, 3]); |
| 8213 |
* // => [3] |
| 8214 |
* |
| 8215 |
* _.takeRight([1, 2, 3], 2); |
| 8216 |
* // => [2, 3] |
| 8217 |
* |
| 8218 |
* _.takeRight([1, 2, 3], 5); |
| 8219 |
* // => [1, 2, 3] |
| 8220 |
* |
| 8221 |
* _.takeRight([1, 2, 3], 0); |
| 8222 |
* // => [] |
| 8223 |
*/ |
| 8224 |
function takeRight(array, n, guard) { |
| 8225 |
var length = array == null ? 0 : array.length; |
| 8226 |
if (!length) { |
| 8227 |
return []; |
| 8228 |
} |
| 8229 |
n = (guard || n === undefined) ? 1 : toInteger(n); |
| 8230 |
n = length - n; |
| 8231 |
return baseSlice(array, n < 0 ? 0 : n, length); |
| 8232 |
} |
| 8233 |
|
| 8234 |
/** |
| 8235 |
* Creates a slice of `array` with elements taken from the end. Elements are |
| 8236 |
* taken until `predicate` returns falsey. The predicate is invoked with |
| 8237 |
* three arguments: (value, index, array). |
| 8238 |
* |
| 8239 |
* @static |
| 8240 |
* @memberOf _ |
| 8241 |
* @since 3.0.0 |
| 8242 |
* @category Array |
| 8243 |
* @param {Array} array The array to query. |
| 8244 |
* @param {Function} [predicate=_.identity] The function invoked per iteration. |
| 8245 |
* @returns {Array} Returns the slice of `array`. |
| 8246 |
* @example |
| 8247 |
* |
| 8248 |
* var users = [ |
| 8249 |
* { 'user': 'barney', 'active': true }, |
| 8250 |
* { 'user': 'fred', 'active': false }, |
| 8251 |
* { 'user': 'pebbles', 'active': false } |
| 8252 |
* ]; |
| 8253 |
* |
| 8254 |
* _.takeRightWhile(users, function(o) { return !o.active; }); |
| 8255 |
* // => objects for ['fred', 'pebbles'] |
| 8256 |
* |
| 8257 |
* // The `_.matches` iteratee shorthand. |
| 8258 |
* _.takeRightWhile(users, { 'user': 'pebbles', 'active': false }); |
| 8259 |
* // => objects for ['pebbles'] |
| 8260 |
* |
| 8261 |
* // The `_.matchesProperty` iteratee shorthand. |
| 8262 |
* _.takeRightWhile(users, ['active', false]); |
| 8263 |
* // => objects for ['fred', 'pebbles'] |
| 8264 |
* |
| 8265 |
* // The `_.property` iteratee shorthand. |
| 8266 |
* _.takeRightWhile(users, 'active'); |
| 8267 |
* // => [] |
| 8268 |
*/ |
| 8269 |
function takeRightWhile(array, predicate) { |
| 8270 |
return (array && array.length) |
| 8271 |
? baseWhile(array, getIteratee(predicate, 3), false, true) |
| 8272 |
: []; |
| 8273 |
} |
| 8274 |
|
| 8275 |
/** |
| 8276 |
* Creates a slice of `array` with elements taken from the beginning. Elements |
| 8277 |
* are taken until `predicate` returns falsey. The predicate is invoked with |
| 8278 |
* three arguments: (value, index, array). |
| 8279 |
* |
| 8280 |
* @static |
| 8281 |
* @memberOf _ |
| 8282 |
* @since 3.0.0 |
| 8283 |
* @category Array |
| 8284 |
* @param {Array} array The array to query. |
| 8285 |
* @param {Function} [predicate=_.identity] The function invoked per iteration. |
| 8286 |
* @returns {Array} Returns the slice of `array`. |
| 8287 |
* @example |
| 8288 |
* |
| 8289 |
* var users = [ |
| 8290 |
* { 'user': 'barney', 'active': false }, |
| 8291 |
* { 'user': 'fred', 'active': false }, |
| 8292 |
* { 'user': 'pebbles', 'active': true } |
| 8293 |
* ]; |
| 8294 |
* |
| 8295 |
* _.takeWhile(users, function(o) { return !o.active; }); |
| 8296 |
* // => objects for ['barney', 'fred'] |
| 8297 |
* |
| 8298 |
* // The `_.matches` iteratee shorthand. |
| 8299 |
* _.takeWhile(users, { 'user': 'barney', 'active': false }); |
| 8300 |
* // => objects for ['barney'] |
| 8301 |
* |
| 8302 |
* // The `_.matchesProperty` iteratee shorthand. |
| 8303 |
* _.takeWhile(users, ['active', false]); |
| 8304 |
* // => objects for ['barney', 'fred'] |
| 8305 |
* |
| 8306 |
* // The `_.property` iteratee shorthand. |
| 8307 |
* _.takeWhile(users, 'active'); |
| 8308 |
* // => [] |
| 8309 |
*/ |
| 8310 |
function takeWhile(array, predicate) { |
| 8311 |
return (array && array.length) |
| 8312 |
? baseWhile(array, getIteratee(predicate, 3)) |
| 8313 |
: []; |
| 8314 |
} |
| 8315 |
|
| 8316 |
/** |
| 8317 |
* Creates an array of unique values, in order, from all given arrays using |
| 8318 |
* [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) |
| 8319 |
* for equality comparisons. |
| 8320 |
* |
| 8321 |
* @static |
| 8322 |
* @memberOf _ |
| 8323 |
* @since 0.1.0 |
| 8324 |
* @category Array |
| 8325 |
* @param {...Array} [arrays] The arrays to inspect. |
| 8326 |
* @returns {Array} Returns the new array of combined values. |
| 8327 |
* @example |
| 8328 |
* |
| 8329 |
* _.union([2], [1, 2]); |
| 8330 |
* // => [2, 1] |
| 8331 |
*/ |
| 8332 |
var union = baseRest(function(arrays) { |
| 8333 |
return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true)); |
| 8334 |
}); |
| 8335 |
|
| 8336 |
/** |
| 8337 |
* This method is like `_.union` except that it accepts `iteratee` which is |
| 8338 |
* invoked for each element of each `arrays` to generate the criterion by |
| 8339 |
* which uniqueness is computed. Result values are chosen from the first |
| 8340 |
* array in which the value occurs. The iteratee is invoked with one argument: |
| 8341 |
* (value). |
| 8342 |
* |
| 8343 |
* @static |
| 8344 |
* @memberOf _ |
| 8345 |
* @since 4.0.0 |
| 8346 |
* @category Array |
| 8347 |
* @param {...Array} [arrays] The arrays to inspect. |
| 8348 |
* @param {Function} [iteratee=_.identity] The iteratee invoked per element. |
| 8349 |
* @returns {Array} Returns the new array of combined values. |
| 8350 |
* @example |
| 8351 |
* |
| 8352 |
* _.unionBy([2.1], [1.2, 2.3], Math.floor); |
| 8353 |
* // => [2.1, 1.2] |
| 8354 |
* |
| 8355 |
* // The `_.property` iteratee shorthand. |
| 8356 |
* _.unionBy([{ 'x': 1 }], [{ 'x': 2 }, { 'x': 1 }], 'x'); |
| 8357 |
* // => [{ 'x': 1 }, { 'x': 2 }] |
| 8358 |
*/ |
| 8359 |
var unionBy = baseRest(function(arrays) { |
| 8360 |
var iteratee = last(arrays); |
| 8361 |
if (isArrayLikeObject(iteratee)) { |
| 8362 |
iteratee = undefined; |
| 8363 |
} |
| 8364 |
return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true), getIteratee(iteratee, 2)); |
| 8365 |
}); |
| 8366 |
|
| 8367 |
/** |
| 8368 |
* This method is like `_.union` except that it accepts `comparator` which |
| 8369 |
* is invoked to compare elements of `arrays`. Result values are chosen from |
| 8370 |
* the first array in which the value occurs. The comparator is invoked |
| 8371 |
* with two arguments: (arrVal, othVal). |
| 8372 |
* |
| 8373 |
* @static |
| 8374 |
* @memberOf _ |
| 8375 |
* @since 4.0.0 |
| 8376 |
* @category Array |
| 8377 |
* @param {...Array} [arrays] The arrays to inspect. |
| 8378 |
* @param {Function} [comparator] The comparator invoked per element. |
| 8379 |
* @returns {Array} Returns the new array of combined values. |
| 8380 |
* @example |
| 8381 |
* |
| 8382 |
* var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }]; |
| 8383 |
* var others = [{ 'x': 1, 'y': 1 }, { 'x': 1, 'y': 2 }]; |
| 8384 |
* |
| 8385 |
* _.unionWith(objects, others, _.isEqual); |
| 8386 |
* // => [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }, { 'x': 1, 'y': 1 }] |
| 8387 |
*/ |
| 8388 |
var unionWith = baseRest(function(arrays) { |
| 8389 |
var comparator = last(arrays); |
| 8390 |
comparator = typeof comparator == 'function' ? comparator : undefined; |
| 8391 |
return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true), undefined, comparator); |
| 8392 |
}); |
| 8393 |
|
| 8394 |
/** |
| 8395 |
* Creates a duplicate-free version of an array, using |
| 8396 |
* [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) |
| 8397 |
* for equality comparisons, in which only the first occurrence of each element |
| 8398 |
* is kept. The order of result values is determined by the order they occur |
| 8399 |
* in the array. |
| 8400 |
* |
| 8401 |
* @static |
| 8402 |
* @memberOf _ |
| 8403 |
* @since 0.1.0 |
| 8404 |
* @category Array |
| 8405 |
* @param {Array} array The array to inspect. |
| 8406 |
* @returns {Array} Returns the new duplicate free array. |
| 8407 |
* @example |
| 8408 |
* |
| 8409 |
* _.uniq([2, 1, 2]); |
| 8410 |
* // => [2, 1] |
| 8411 |
*/ |
| 8412 |
function uniq(array) { |
| 8413 |
return (array && array.length) ? baseUniq(array) : []; |
| 8414 |
} |
| 8415 |
|
| 8416 |
/** |
| 8417 |
* This method is like `_.uniq` except that it accepts `iteratee` which is |
| 8418 |
* invoked for each element in `array` to generate the criterion by which |
| 8419 |
* uniqueness is computed. The order of result values is determined by the |
| 8420 |
* order they occur in the array. The iteratee is invoked with one argument: |
| 8421 |
* (value). |
| 8422 |
* |
| 8423 |
* @static |
| 8424 |
* @memberOf _ |
| 8425 |
* @since 4.0.0 |
| 8426 |
* @category Array |
| 8427 |
* @param {Array} array The array to inspect. |
| 8428 |
* @param {Function} [iteratee=_.identity] The iteratee invoked per element. |
| 8429 |
* @returns {Array} Returns the new duplicate free array. |
| 8430 |
* @example |
| 8431 |
* |
| 8432 |
* _.uniqBy([2.1, 1.2, 2.3], Math.floor); |
| 8433 |
* // => [2.1, 1.2] |
| 8434 |
* |
| 8435 |
* // The `_.property` iteratee shorthand. |
| 8436 |
* _.uniqBy([{ 'x': 1 }, { 'x': 2 }, { 'x': 1 }], 'x'); |
| 8437 |
* // => [{ 'x': 1 }, { 'x': 2 }] |
| 8438 |
*/ |
| 8439 |
function uniqBy(array, iteratee) { |
| 8440 |
return (array && array.length) ? baseUniq(array, getIteratee(iteratee, 2)) : []; |
| 8441 |
} |
| 8442 |
|
| 8443 |
/** |
| 8444 |
* This method is like `_.uniq` except that it accepts `comparator` which |
| 8445 |
* is invoked to compare elements of `array`. The order of result values is |
| 8446 |
* determined by the order they occur in the array.The comparator is invoked |
| 8447 |
* with two arguments: (arrVal, othVal). |
| 8448 |
* |
| 8449 |
* @static |
| 8450 |
* @memberOf _ |
| 8451 |
* @since 4.0.0 |
| 8452 |
* @category Array |
| 8453 |
* @param {Array} array The array to inspect. |
| 8454 |
* @param {Function} [comparator] The comparator invoked per element. |
| 8455 |
* @returns {Array} Returns the new duplicate free array. |
| 8456 |
* @example |
| 8457 |
* |
| 8458 |
* var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }, { 'x': 1, 'y': 2 }]; |
| 8459 |
* |
| 8460 |
* _.uniqWith(objects, _.isEqual); |
| 8461 |
* // => [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }] |
| 8462 |
*/ |
| 8463 |
function uniqWith(array, comparator) { |
| 8464 |
comparator = typeof comparator == 'function' ? comparator : undefined; |
| 8465 |
return (array && array.length) ? baseUniq(array, undefined, comparator) : []; |
| 8466 |
} |
| 8467 |
|
| 8468 |
/** |
| 8469 |
* This method is like `_.zip` except that it accepts an array of grouped |
| 8470 |
* elements and creates an array regrouping the elements to their pre-zip |
| 8471 |
* configuration. |
| 8472 |
* |
| 8473 |
* @static |
| 8474 |
* @memberOf _ |
| 8475 |
* @since 1.2.0 |
| 8476 |
* @category Array |
| 8477 |
* @param {Array} array The array of grouped elements to process. |
| 8478 |
* @returns {Array} Returns the new array of regrouped elements. |
| 8479 |
* @example |
| 8480 |
* |
| 8481 |
* var zipped = _.zip(['a', 'b'], [1, 2], [true, false]); |
| 8482 |
* // => [['a', 1, true], ['b', 2, false]] |
| 8483 |
* |
| 8484 |
* _.unzip(zipped); |
| 8485 |
* // => [['a', 'b'], [1, 2], [true, false]] |
| 8486 |
*/ |
| 8487 |
function unzip(array) { |
| 8488 |
if (!(array && array.length)) { |
| 8489 |
return []; |
| 8490 |
} |
| 8491 |
var length = 0; |
| 8492 |
array = arrayFilter(array, function(group) { |
| 8493 |
if (isArrayLikeObject(group)) { |
| 8494 |
length = nativeMax(group.length, length); |
| 8495 |
return true; |
| 8496 |
} |
| 8497 |
}); |
| 8498 |
return baseTimes(length, function(index) { |
| 8499 |
return arrayMap(array, baseProperty(index)); |
| 8500 |
}); |
| 8501 |
} |
| 8502 |
|
| 8503 |
/** |
| 8504 |
* This method is like `_.unzip` except that it accepts `iteratee` to specify |
| 8505 |
* how regrouped values should be combined. The iteratee is invoked with the |
| 8506 |
* elements of each group: (...group). |
| 8507 |
* |
| 8508 |
* @static |
| 8509 |
* @memberOf _ |
| 8510 |
* @since 3.8.0 |
| 8511 |
* @category Array |
| 8512 |
* @param {Array} array The array of grouped elements to process. |
| 8513 |
* @param {Function} [iteratee=_.identity] The function to combine |
| 8514 |
* regrouped values. |
| 8515 |
* @returns {Array} Returns the new array of regrouped elements. |
| 8516 |
* @example |
| 8517 |
* |
| 8518 |
* var zipped = _.zip([1, 2], [10, 20], [100, 200]); |
| 8519 |
* // => [[1, 10, 100], [2, 20, 200]] |
| 8520 |
* |
| 8521 |
* _.unzipWith(zipped, _.add); |
| 8522 |
* // => [3, 30, 300] |
| 8523 |
*/ |
| 8524 |
function unzipWith(array, iteratee) { |
| 8525 |
if (!(array && array.length)) { |
| 8526 |
return []; |
| 8527 |
} |
| 8528 |
var result = unzip(array); |
| 8529 |
if (iteratee == null) { |
| 8530 |
return result; |
| 8531 |
} |
| 8532 |
return arrayMap(result, function(group) { |
| 8533 |
return apply(iteratee, undefined, group); |
| 8534 |
}); |
| 8535 |
} |
| 8536 |
|
| 8537 |
/** |
| 8538 |
* Creates an array excluding all given values using |
| 8539 |
* [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) |
| 8540 |
* for equality comparisons. |
| 8541 |
* |
| 8542 |
* **Note:** Unlike `_.pull`, this method returns a new array. |
| 8543 |
* |
| 8544 |
* @static |
| 8545 |
* @memberOf _ |
| 8546 |
* @since 0.1.0 |
| 8547 |
* @category Array |
| 8548 |
* @param {Array} array The array to inspect. |
| 8549 |
* @param {...*} [values] The values to exclude. |
| 8550 |
* @returns {Array} Returns the new array of filtered values. |
| 8551 |
* @see _.difference, _.xor |
| 8552 |
* @example |
| 8553 |
* |
| 8554 |
* _.without([2, 1, 2, 3], 1, 2); |
| 8555 |
* // => [3] |
| 8556 |
*/ |
| 8557 |
var without = baseRest(function(array, values) { |
| 8558 |
return isArrayLikeObject(array) |
| 8559 |
? baseDifference(array, values) |
| 8560 |
: []; |
| 8561 |
}); |
| 8562 |
|
| 8563 |
/** |
| 8564 |
* Creates an array of unique values that is the |
| 8565 |
* [symmetric difference](https://en.wikipedia.org/wiki/Symmetric_difference) |
| 8566 |
* of the given arrays. The order of result values is determined by the order |
| 8567 |
* they occur in the arrays. |
| 8568 |
* |
| 8569 |
* @static |
| 8570 |
* @memberOf _ |
| 8571 |
* @since 2.4.0 |
| 8572 |
* @category Array |
| 8573 |
* @param {...Array} [arrays] The arrays to inspect. |
| 8574 |
* @returns {Array} Returns the new array of filtered values. |
| 8575 |
* @see _.difference, _.without |
| 8576 |
* @example |
| 8577 |
* |
| 8578 |
* _.xor([2, 1], [2, 3]); |
| 8579 |
* // => [1, 3] |
| 8580 |
*/ |
| 8581 |
var xor = baseRest(function(arrays) { |
| 8582 |
return baseXor(arrayFilter(arrays, isArrayLikeObject)); |
| 8583 |
}); |
| 8584 |
|
| 8585 |
/** |
| 8586 |
* This method is like `_.xor` except that it accepts `iteratee` which is |
| 8587 |
* invoked for each element of each `arrays` to generate the criterion by |
| 8588 |
* which by which they're compared. The order of result values is determined |
| 8589 |
* by the order they occur in the arrays. The iteratee is invoked with one |
| 8590 |
* argument: (value). |
| 8591 |
* |
| 8592 |
* @static |
| 8593 |
* @memberOf _ |
| 8594 |
* @since 4.0.0 |
| 8595 |
* @category Array |
| 8596 |
* @param {...Array} [arrays] The arrays to inspect. |
| 8597 |
* @param {Function} [iteratee=_.identity] The iteratee invoked per element. |
| 8598 |
* @returns {Array} Returns the new array of filtered values. |
| 8599 |
* @example |
| 8600 |
* |
| 8601 |
* _.xorBy([2.1, 1.2], [2.3, 3.4], Math.floor); |
| 8602 |
* // => [1.2, 3.4] |
| 8603 |
* |
| 8604 |
* // The `_.property` iteratee shorthand. |
| 8605 |
* _.xorBy([{ 'x': 1 }], [{ 'x': 2 }, { 'x': 1 }], 'x'); |
| 8606 |
* // => [{ 'x': 2 }] |
| 8607 |
*/ |
| 8608 |
var xorBy = baseRest(function(arrays) { |
| 8609 |
var iteratee = last(arrays); |
| 8610 |
if (isArrayLikeObject(iteratee)) { |
| 8611 |
iteratee = undefined; |
| 8612 |
} |
| 8613 |
return baseXor(arrayFilter(arrays, isArrayLikeObject), getIteratee(iteratee, 2)); |
| 8614 |
}); |
| 8615 |
|
| 8616 |
/** |
| 8617 |
* This method is like `_.xor` except that it accepts `comparator` which is |
| 8618 |
* invoked to compare elements of `arrays`. The order of result values is |
| 8619 |
* determined by the order they occur in the arrays. The comparator is invoked |
| 8620 |
* with two arguments: (arrVal, othVal). |
| 8621 |
* |
| 8622 |
* @static |
| 8623 |
* @memberOf _ |
| 8624 |
* @since 4.0.0 |
| 8625 |
* @category Array |
| 8626 |
* @param {...Array} [arrays] The arrays to inspect. |
| 8627 |
* @param {Function} [comparator] The comparator invoked per element. |
| 8628 |
* @returns {Array} Returns the new array of filtered values. |
| 8629 |
* @example |
| 8630 |
* |
| 8631 |
* var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }]; |
| 8632 |
* var others = [{ 'x': 1, 'y': 1 }, { 'x': 1, 'y': 2 }]; |
| 8633 |
* |
| 8634 |
* _.xorWith(objects, others, _.isEqual); |
| 8635 |
* // => [{ 'x': 2, 'y': 1 }, { 'x': 1, 'y': 1 }] |
| 8636 |
*/ |
| 8637 |
var xorWith = baseRest(function(arrays) { |
| 8638 |
var comparator = last(arrays); |
| 8639 |
comparator = typeof comparator == 'function' ? comparator : undefined; |
| 8640 |
return baseXor(arrayFilter(arrays, isArrayLikeObject), undefined, comparator); |
| 8641 |
}); |
| 8642 |
|
| 8643 |
/** |
| 8644 |
* Creates an array of grouped elements, the first of which contains the |
| 8645 |
* first elements of the given arrays, the second of which contains the |
| 8646 |
* second elements of the given arrays, and so on. |
| 8647 |
* |
| 8648 |
* @static |
| 8649 |
* @memberOf _ |
| 8650 |
* @since 0.1.0 |
| 8651 |
* @category Array |
| 8652 |
* @param {...Array} [arrays] The arrays to process. |
| 8653 |
* @returns {Array} Returns the new array of grouped elements. |
| 8654 |
* @example |
| 8655 |
* |
| 8656 |
* _.zip(['a', 'b'], [1, 2], [true, false]); |
| 8657 |
* // => [['a', 1, true], ['b', 2, false]] |
| 8658 |
*/ |
| 8659 |
var zip = baseRest(unzip); |
| 8660 |
|
| 8661 |
/** |
| 8662 |
* This method is like `_.fromPairs` except that it accepts two arrays, |
| 8663 |
* one of property identifiers and one of corresponding values. |
| 8664 |
* |
| 8665 |
* @static |
| 8666 |
* @memberOf _ |
| 8667 |
* @since 0.4.0 |
| 8668 |
* @category Array |
| 8669 |
* @param {Array} [props=[]] The property identifiers. |
| 8670 |
* @param {Array} [values=[]] The property values. |
| 8671 |
* @returns {Object} Returns the new object. |
| 8672 |
* @example |
| 8673 |
* |
| 8674 |
* _.zipObject(['a', 'b'], [1, 2]); |
| 8675 |
* // => { 'a': 1, 'b': 2 } |
| 8676 |
*/ |
| 8677 |
function zipObject(props, values) { |
| 8678 |
return baseZipObject(props || [], values || [], assignValue); |
| 8679 |
} |
| 8680 |
|
| 8681 |
/** |
| 8682 |
* This method is like `_.zipObject` except that it supports property paths. |
| 8683 |
* |
| 8684 |
* @static |
| 8685 |
* @memberOf _ |
| 8686 |
* @since 4.1.0 |
| 8687 |
* @category Array |
| 8688 |
* @param {Array} [props=[]] The property identifiers. |
| 8689 |
* @param {Array} [values=[]] The property values. |
| 8690 |
* @returns {Object} Returns the new object. |
| 8691 |
* @example |
| 8692 |
* |
| 8693 |
* _.zipObjectDeep(['a.b[0].c', 'a.b[1].d'], [1, 2]); |
| 8694 |
* // => { 'a': { 'b': [{ 'c': 1 }, { 'd': 2 }] } } |
| 8695 |
*/ |
| 8696 |
function zipObjectDeep(props, values) { |
| 8697 |
return baseZipObject(props || [], values || [], baseSet); |
| 8698 |
} |
| 8699 |
|
| 8700 |
/** |
| 8701 |
* This method is like `_.zip` except that it accepts `iteratee` to specify |
| 8702 |
* how grouped values should be combined. The iteratee is invoked with the |
| 8703 |
* elements of each group: (...group). |
| 8704 |
* |
| 8705 |
* @static |
| 8706 |
* @memberOf _ |
| 8707 |
* @since 3.8.0 |
| 8708 |
* @category Array |
| 8709 |
* @param {...Array} [arrays] The arrays to process. |
| 8710 |
* @param {Function} [iteratee=_.identity] The function to combine |
| 8711 |
* grouped values. |
| 8712 |
* @returns {Array} Returns the new array of grouped elements. |
| 8713 |
* @example |
| 8714 |
* |
| 8715 |
* _.zipWith([1, 2], [10, 20], [100, 200], function(a, b, c) { |
| 8716 |
* return a + b + c; |
| 8717 |
* }); |
| 8718 |
* // => [111, 222] |
| 8719 |
*/ |
| 8720 |
var zipWith = baseRest(function(arrays) { |
| 8721 |
var length = arrays.length, |
| 8722 |
iteratee = length > 1 ? arrays[length - 1] : undefined; |
| 8723 |
|
| 8724 |
iteratee = typeof iteratee == 'function' ? (arrays.pop(), iteratee) : undefined; |
| 8725 |
return unzipWith(arrays, iteratee); |
| 8726 |
}); |
| 8727 |
|
| 8728 |
/*------------------------------------------------------------------------*/ |
| 8729 |
|
| 8730 |
/** |
| 8731 |
* Creates a `lodash` wrapper instance that wraps `value` with explicit method |
| 8732 |
* chain sequences enabled. The result of such sequences must be unwrapped |
| 8733 |
* with `_#value`. |
| 8734 |
* |
| 8735 |
* @static |
| 8736 |
* @memberOf _ |
| 8737 |
* @since 1.3.0 |
| 8738 |
* @category Seq |
| 8739 |
* @param {*} value The value to wrap. |
| 8740 |
* @returns {Object} Returns the new `lodash` wrapper instance. |
| 8741 |
* @example |
| 8742 |
* |
| 8743 |
* var users = [ |
| 8744 |
* { 'user': 'barney', 'age': 36 }, |
| 8745 |
* { 'user': 'fred', 'age': 40 }, |
| 8746 |
* { 'user': 'pebbles', 'age': 1 } |
| 8747 |
* ]; |
| 8748 |
* |
| 8749 |
* var youngest = _ |
| 8750 |
* .chain(users) |
| 8751 |
* .sortBy('age') |
| 8752 |
* .map(function(o) { |
| 8753 |
* return o.user + ' is ' + o.age; |
| 8754 |
* }) |
| 8755 |
* .head() |
| 8756 |
* .value(); |
| 8757 |
* // => 'pebbles is 1' |
| 8758 |
*/ |
| 8759 |
function chain(value) { |
| 8760 |
var result = lodash(value); |
| 8761 |
result.__chain__ = true; |
| 8762 |
return result; |
| 8763 |
} |
| 8764 |
|
| 8765 |
/** |
| 8766 |
* This method invokes `interceptor` and returns `value`. The interceptor |
| 8767 |
* is invoked with one argument; (value). The purpose of this method is to |
| 8768 |
* "tap into" a method chain sequence in order to modify intermediate results. |
| 8769 |
* |
| 8770 |
* @static |
| 8771 |
* @memberOf _ |
| 8772 |
* @since 0.1.0 |
| 8773 |
* @category Seq |
| 8774 |
* @param {*} value The value to provide to `interceptor`. |
| 8775 |
* @param {Function} interceptor The function to invoke. |
| 8776 |
* @returns {*} Returns `value`. |
| 8777 |
* @example |
| 8778 |
* |
| 8779 |
* _([1, 2, 3]) |
| 8780 |
* .tap(function(array) { |
| 8781 |
* // Mutate input array. |
| 8782 |
* array.pop(); |
| 8783 |
* }) |
| 8784 |
* .reverse() |
| 8785 |
* .value(); |
| 8786 |
* // => [2, 1] |
| 8787 |
*/ |
| 8788 |
function tap(value, interceptor) { |
| 8789 |
interceptor(value); |
| 8790 |
return value; |
| 8791 |
} |
| 8792 |
|
| 8793 |
/** |
| 8794 |
* This method is like `_.tap` except that it returns the result of `interceptor`. |
| 8795 |
* The purpose of this method is to "pass thru" values replacing intermediate |
| 8796 |
* results in a method chain sequence. |
| 8797 |
* |
| 8798 |
* @static |
| 8799 |
* @memberOf _ |
| 8800 |
* @since 3.0.0 |
| 8801 |
* @category Seq |
| 8802 |
* @param {*} value The value to provide to `interceptor`. |
| 8803 |
* @param {Function} interceptor The function to invoke. |
| 8804 |
* @returns {*} Returns the result of `interceptor`. |
| 8805 |
* @example |
| 8806 |
* |
| 8807 |
* _(' abc ') |
| 8808 |
* .chain() |
| 8809 |
* .trim() |
| 8810 |
* .thru(function(value) { |
| 8811 |
* return [value]; |
| 8812 |
* }) |
| 8813 |
* .value(); |
| 8814 |
* // => ['abc'] |
| 8815 |
*/ |
| 8816 |
function thru(value, interceptor) { |
| 8817 |
return interceptor(value); |
| 8818 |
} |
| 8819 |
|
| 8820 |
/** |
| 8821 |
* This method is the wrapper version of `_.at`. |
| 8822 |
* |
| 8823 |
* @name at |
| 8824 |
* @memberOf _ |
| 8825 |
* @since 1.0.0 |
| 8826 |
* @category Seq |
| 8827 |
* @param {...(string|string[])} [paths] The property paths to pick. |
| 8828 |
* @returns {Object} Returns the new `lodash` wrapper instance. |
| 8829 |
* @example |
| 8830 |
* |
| 8831 |
* var object = { 'a': [{ 'b': { 'c': 3 } }, 4] }; |
| 8832 |
* |
| 8833 |
* _(object).at(['a[0].b.c', 'a[1]']).value(); |
| 8834 |
* // => [3, 4] |
| 8835 |
*/ |
| 8836 |
var wrapperAt = flatRest(function(paths) { |
| 8837 |
var length = paths.length, |
| 8838 |
start = length ? paths[0] : 0, |
| 8839 |
value = this.__wrapped__, |
| 8840 |
interceptor = function(object) { return baseAt(object, paths); }; |
| 8841 |
|
| 8842 |
if (length > 1 || this.__actions__.length || |
| 8843 |
!(value instanceof LazyWrapper) || !isIndex(start)) { |
| 8844 |
return this.thru(interceptor); |
| 8845 |
} |
| 8846 |
value = value.slice(start, +start + (length ? 1 : 0)); |
| 8847 |
value.__actions__.push({ |
| 8848 |
'func': thru, |
| 8849 |
'args': [interceptor], |
| 8850 |
'thisArg': undefined |
| 8851 |
}); |
| 8852 |
return new LodashWrapper(value, this.__chain__).thru(function(array) { |
| 8853 |
if (length && !array.length) { |
| 8854 |
array.push(undefined); |
| 8855 |
} |
| 8856 |
return array; |
| 8857 |
}); |
| 8858 |
}); |
| 8859 |
|
| 8860 |
/** |
| 8861 |
* Creates a `lodash` wrapper instance with explicit method chain sequences enabled. |
| 8862 |
* |
| 8863 |
* @name chain |
| 8864 |
* @memberOf _ |
| 8865 |
* @since 0.1.0 |
| 8866 |
* @category Seq |
| 8867 |
* @returns {Object} Returns the new `lodash` wrapper instance. |
| 8868 |
* @example |
| 8869 |
* |
| 8870 |
* var users = [ |
| 8871 |
* { 'user': 'barney', 'age': 36 }, |
| 8872 |
* { 'user': 'fred', 'age': 40 } |
| 8873 |
* ]; |
| 8874 |
* |
| 8875 |
* // A sequence without explicit chaining. |
| 8876 |
* _(users).head(); |
| 8877 |
* // => { 'user': 'barney', 'age': 36 } |
| 8878 |
* |
| 8879 |
* // A sequence with explicit chaining. |
| 8880 |
* _(users) |
| 8881 |
* .chain() |
| 8882 |
* .head() |
| 8883 |
* .pick('user') |
| 8884 |
* .value(); |
| 8885 |
* // => { 'user': 'barney' } |
| 8886 |
*/ |
| 8887 |
function wrapperChain() { |
| 8888 |
return chain(this); |
| 8889 |
} |
| 8890 |
|
| 8891 |
/** |
| 8892 |
* Executes the chain sequence and returns the wrapped result. |
| 8893 |
* |
| 8894 |
* @name commit |
| 8895 |
* @memberOf _ |
| 8896 |
* @since 3.2.0 |
| 8897 |
* @category Seq |
| 8898 |
* @returns {Object} Returns the new `lodash` wrapper instance. |
| 8899 |
* @example |
| 8900 |
* |
| 8901 |
* var array = [1, 2]; |
| 8902 |
* var wrapped = _(array).push(3); |
| 8903 |
* |
| 8904 |
* console.log(array); |
| 8905 |
* // => [1, 2] |
| 8906 |
* |
| 8907 |
* wrapped = wrapped.commit(); |
| 8908 |
* console.log(array); |
| 8909 |
* // => [1, 2, 3] |
| 8910 |
* |
| 8911 |
* wrapped.last(); |
| 8912 |
* // => 3 |
| 8913 |
* |
| 8914 |
* console.log(array); |
| 8915 |
* // => [1, 2, 3] |
| 8916 |
*/ |
| 8917 |
function wrapperCommit() { |
| 8918 |
return new LodashWrapper(this.value(), this.__chain__); |
| 8919 |
} |
| 8920 |
|
| 8921 |
/** |
| 8922 |
* Gets the next value on a wrapped object following the |
| 8923 |
* [iterator protocol](https://mdn.io/iteration_protocols#iterator). |
| 8924 |
* |
| 8925 |
* @name next |
| 8926 |
* @memberOf _ |
| 8927 |
* @since 4.0.0 |
| 8928 |
* @category Seq |
| 8929 |
* @returns {Object} Returns the next iterator value. |
| 8930 |
* @example |
| 8931 |
* |
| 8932 |
* var wrapped = _([1, 2]); |
| 8933 |
* |
| 8934 |
* wrapped.next(); |
| 8935 |
* // => { 'done': false, 'value': 1 } |
| 8936 |
* |
| 8937 |
* wrapped.next(); |
| 8938 |
* // => { 'done': false, 'value': 2 } |
| 8939 |
* |
| 8940 |
* wrapped.next(); |
| 8941 |
* // => { 'done': true, 'value': undefined } |
| 8942 |
*/ |
| 8943 |
function wrapperNext() { |
| 8944 |
if (this.__values__ === undefined) { |
| 8945 |
this.__values__ = toArray(this.value()); |
| 8946 |
} |
| 8947 |
var done = this.__index__ >= this.__values__.length, |
| 8948 |
value = done ? undefined : this.__values__[this.__index__++]; |
| 8949 |
|
| 8950 |
return { 'done': done, 'value': value }; |
| 8951 |
} |
| 8952 |
|
| 8953 |
/** |
| 8954 |
* Enables the wrapper to be iterable. |
| 8955 |
* |
| 8956 |
* @name Symbol.iterator |
| 8957 |
* @memberOf _ |
| 8958 |
* @since 4.0.0 |
| 8959 |
* @category Seq |
| 8960 |
* @returns {Object} Returns the wrapper object. |
| 8961 |
* @example |
| 8962 |
* |
| 8963 |
* var wrapped = _([1, 2]); |
| 8964 |
* |
| 8965 |
* wrapped[Symbol.iterator]() === wrapped; |
| 8966 |
* // => true |
| 8967 |
* |
| 8968 |
* Array.from(wrapped); |
| 8969 |
* // => [1, 2] |
| 8970 |
*/ |
| 8971 |
function wrapperToIterator() { |
| 8972 |
return this; |
| 8973 |
} |
| 8974 |
|
| 8975 |
/** |
| 8976 |
* Creates a clone of the chain sequence planting `value` as the wrapped value. |
| 8977 |
* |
| 8978 |
* @name plant |
| 8979 |
* @memberOf _ |
| 8980 |
* @since 3.2.0 |
| 8981 |
* @category Seq |
| 8982 |
* @param {*} value The value to plant. |
| 8983 |
* @returns {Object} Returns the new `lodash` wrapper instance. |
| 8984 |
* @example |
| 8985 |
* |
| 8986 |
* function square(n) { |
| 8987 |
* return n * n; |
| 8988 |
* } |
| 8989 |
* |
| 8990 |
* var wrapped = _([1, 2]).map(square); |
| 8991 |
* var other = wrapped.plant([3, 4]); |
| 8992 |
* |
| 8993 |
* other.value(); |
| 8994 |
* // => [9, 16] |
| 8995 |
* |
| 8996 |
* wrapped.value(); |
| 8997 |
* // => [1, 4] |
| 8998 |
*/ |
| 8999 |
function wrapperPlant(value) { |
| 9000 |
var result, |
| 9001 |
parent = this; |
| 9002 |
|
| 9003 |
while (parent instanceof baseLodash) { |
| 9004 |
var clone = wrapperClone(parent); |
| 9005 |
clone.__index__ = 0; |
| 9006 |
clone.__values__ = undefined; |
| 9007 |
if (result) { |
| 9008 |
previous.__wrapped__ = clone; |
| 9009 |
} else { |
| 9010 |
result = clone; |
| 9011 |
} |
| 9012 |
var previous = clone; |
| 9013 |
parent = parent.__wrapped__; |
| 9014 |
} |
| 9015 |
previous.__wrapped__ = value; |
| 9016 |
return result; |
| 9017 |
} |
| 9018 |
|
| 9019 |
/** |
| 9020 |
* This method is the wrapper version of `_.reverse`. |
| 9021 |
* |
| 9022 |
* **Note:** This method mutates the wrapped array. |
| 9023 |
* |
| 9024 |
* @name reverse |
| 9025 |
* @memberOf _ |
| 9026 |
* @since 0.1.0 |
| 9027 |
* @category Seq |
| 9028 |
* @returns {Object} Returns the new `lodash` wrapper instance. |
| 9029 |
* @example |
| 9030 |
* |
| 9031 |
* var array = [1, 2, 3]; |
| 9032 |
* |
| 9033 |
* _(array).reverse().value() |
| 9034 |
* // => [3, 2, 1] |
| 9035 |
* |
| 9036 |
* console.log(array); |
| 9037 |
* // => [3, 2, 1] |
| 9038 |
*/ |
| 9039 |
function wrapperReverse() { |
| 9040 |
var value = this.__wrapped__; |
| 9041 |
if (value instanceof LazyWrapper) { |
| 9042 |
var wrapped = value; |
| 9043 |
if (this.__actions__.length) { |
| 9044 |
wrapped = new LazyWrapper(this); |
| 9045 |
} |
| 9046 |
wrapped = wrapped.reverse(); |
| 9047 |
wrapped.__actions__.push({ |
| 9048 |
'func': thru, |
| 9049 |
'args': [reverse], |
| 9050 |
'thisArg': undefined |
| 9051 |
}); |
| 9052 |
return new LodashWrapper(wrapped, this.__chain__); |
| 9053 |
} |
| 9054 |
return this.thru(reverse); |
| 9055 |
} |
| 9056 |
|
| 9057 |
/** |
| 9058 |
* Executes the chain sequence to resolve the unwrapped value. |
| 9059 |
* |
| 9060 |
* @name value |
| 9061 |
* @memberOf _ |
| 9062 |
* @since 0.1.0 |
| 9063 |
* @alias toJSON, valueOf |
| 9064 |
* @category Seq |
| 9065 |
* @returns {*} Returns the resolved unwrapped value. |
| 9066 |
* @example |
| 9067 |
* |
| 9068 |
* _([1, 2, 3]).value(); |
| 9069 |
* // => [1, 2, 3] |
| 9070 |
*/ |
| 9071 |
function wrapperValue() { |
| 9072 |
return baseWrapperValue(this.__wrapped__, this.__actions__); |
| 9073 |
} |
| 9074 |
|
| 9075 |
/*------------------------------------------------------------------------*/ |
| 9076 |
|
| 9077 |
/** |
| 9078 |
* Creates an object composed of keys generated from the results of running |
| 9079 |
* each element of `collection` thru `iteratee`. The corresponding value of |
| 9080 |
* each key is the number of times the key was returned by `iteratee`. The |
| 9081 |
* iteratee is invoked with one argument: (value). |
| 9082 |
* |
| 9083 |
* @static |
| 9084 |
* @memberOf _ |
| 9085 |
* @since 0.5.0 |
| 9086 |
* @category Collection |
| 9087 |
* @param {Array|Object} collection The collection to iterate over. |
| 9088 |
* @param {Function} [iteratee=_.identity] The iteratee to transform keys. |
| 9089 |
* @returns {Object} Returns the composed aggregate object. |
| 9090 |
* @example |
| 9091 |
* |
| 9092 |
* _.countBy([6.1, 4.2, 6.3], Math.floor); |
| 9093 |
* // => { '4': 1, '6': 2 } |
| 9094 |
* |
| 9095 |
* // The `_.property` iteratee shorthand. |
| 9096 |
* _.countBy(['one', 'two', 'three'], 'length'); |
| 9097 |
* // => { '3': 2, '5': 1 } |
| 9098 |
*/ |
| 9099 |
var countBy = createAggregator(function(result, value, key) { |
| 9100 |
if (hasOwnProperty.call(result, key)) { |
| 9101 |
++result[key]; |
| 9102 |
} else { |
| 9103 |
baseAssignValue(result, key, 1); |
| 9104 |
} |
| 9105 |
}); |
| 9106 |
|
| 9107 |
/** |
| 9108 |
* Checks if `predicate` returns truthy for **all** elements of `collection`. |
| 9109 |
* Iteration is stopped once `predicate` returns falsey. The predicate is |
| 9110 |
* invoked with three arguments: (value, index|key, collection). |
| 9111 |
* |
| 9112 |
* **Note:** This method returns `true` for |
| 9113 |
* [empty collections](https://en.wikipedia.org/wiki/Empty_set) because |
| 9114 |
* [everything is true](https://en.wikipedia.org/wiki/Vacuous_truth) of |
| 9115 |
* elements of empty collections. |
| 9116 |
* |
| 9117 |
* @static |
| 9118 |
* @memberOf _ |
| 9119 |
* @since 0.1.0 |
| 9120 |
* @category Collection |
| 9121 |
* @param {Array|Object} collection The collection to iterate over. |
| 9122 |
* @param {Function} [predicate=_.identity] The function invoked per iteration. |
| 9123 |
* @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. |
| 9124 |
* @returns {boolean} Returns `true` if all elements pass the predicate check, |
| 9125 |
* else `false`. |
| 9126 |
* @example |
| 9127 |
* |
| 9128 |
* _.every([true, 1, null, 'yes'], Boolean); |
| 9129 |
* // => false |
| 9130 |
* |
| 9131 |
* var users = [ |
| 9132 |
* { 'user': 'barney', 'age': 36, 'active': false }, |
| 9133 |
* { 'user': 'fred', 'age': 40, 'active': false } |
| 9134 |
* ]; |
| 9135 |
* |
| 9136 |
* // The `_.matches` iteratee shorthand. |
| 9137 |
* _.every(users, { 'user': 'barney', 'active': false }); |
| 9138 |
* // => false |
| 9139 |
* |
| 9140 |
* // The `_.matchesProperty` iteratee shorthand. |
| 9141 |
* _.every(users, ['active', false]); |
| 9142 |
* // => true |
| 9143 |
* |
| 9144 |
* // The `_.property` iteratee shorthand. |
| 9145 |
* _.every(users, 'active'); |
| 9146 |
* // => false |
| 9147 |
*/ |
| 9148 |
function every(collection, predicate, guard) { |
| 9149 |
var func = isArray(collection) ? arrayEvery : baseEvery; |
| 9150 |
if (guard && isIterateeCall(collection, predicate, guard)) { |
| 9151 |
predicate = undefined; |
| 9152 |
} |
| 9153 |
return func(collection, getIteratee(predicate, 3)); |
| 9154 |
} |
| 9155 |
|
| 9156 |
/** |
| 9157 |
* Iterates over elements of `collection`, returning an array of all elements |
| 9158 |
* `predicate` returns truthy for. The predicate is invoked with three |
| 9159 |
* arguments: (value, index|key, collection). |
| 9160 |
* |
| 9161 |
* **Note:** Unlike `_.remove`, this method returns a new array. |
| 9162 |
* |
| 9163 |
* @static |
| 9164 |
* @memberOf _ |
| 9165 |
* @since 0.1.0 |
| 9166 |
* @category Collection |
| 9167 |
* @param {Array|Object} collection The collection to iterate over. |
| 9168 |
* @param {Function} [predicate=_.identity] The function invoked per iteration. |
| 9169 |
* @returns {Array} Returns the new filtered array. |
| 9170 |
* @see _.reject |
| 9171 |
* @example |
| 9172 |
* |
| 9173 |
* var users = [ |
| 9174 |
* { 'user': 'barney', 'age': 36, 'active': true }, |
| 9175 |
* { 'user': 'fred', 'age': 40, 'active': false } |
| 9176 |
* ]; |
| 9177 |
* |
| 9178 |
* _.filter(users, function(o) { return !o.active; }); |
| 9179 |
* // => objects for ['fred'] |
| 9180 |
* |
| 9181 |
* // The `_.matches` iteratee shorthand. |
| 9182 |
* _.filter(users, { 'age': 36, 'active': true }); |
| 9183 |
* // => objects for ['barney'] |
| 9184 |
* |
| 9185 |
* // The `_.matchesProperty` iteratee shorthand. |
| 9186 |
* _.filter(users, ['active', false]); |
| 9187 |
* // => objects for ['fred'] |
| 9188 |
* |
| 9189 |
* // The `_.property` iteratee shorthand. |
| 9190 |
* _.filter(users, 'active'); |
| 9191 |
* // => objects for ['barney'] |
| 9192 |
* |
| 9193 |
* // Combining several predicates using `_.overEvery` or `_.overSome`. |
| 9194 |
* _.filter(users, _.overSome([{ 'age': 36 }, ['age', 40]])); |
| 9195 |
* // => objects for ['fred', 'barney'] |
| 9196 |
*/ |
| 9197 |
function filter(collection, predicate) { |
| 9198 |
var func = isArray(collection) ? arrayFilter : baseFilter; |
| 9199 |
return func(collection, getIteratee(predicate, 3)); |
| 9200 |
} |
| 9201 |
|
| 9202 |
/** |
| 9203 |
* Iterates over elements of `collection`, returning the first element |
| 9204 |
* `predicate` returns truthy for. The predicate is invoked with three |
| 9205 |
* arguments: (value, index|key, collection). |
| 9206 |
* |
| 9207 |
* @static |
| 9208 |
* @memberOf _ |
| 9209 |
* @since 0.1.0 |
| 9210 |
* @category Collection |
| 9211 |
* @param {Array|Object} collection The collection to inspect. |
| 9212 |
* @param {Function} [predicate=_.identity] The function invoked per iteration. |
| 9213 |
* @param {number} [fromIndex=0] The index to search from. |
| 9214 |
* @returns {*} Returns the matched element, else `undefined`. |
| 9215 |
* @example |
| 9216 |
* |
| 9217 |
* var users = [ |
| 9218 |
* { 'user': 'barney', 'age': 36, 'active': true }, |
| 9219 |
* { 'user': 'fred', 'age': 40, 'active': false }, |
| 9220 |
* { 'user': 'pebbles', 'age': 1, 'active': true } |
| 9221 |
* ]; |
| 9222 |
* |
| 9223 |
* _.find(users, function(o) { return o.age < 40; }); |
| 9224 |
* // => object for 'barney' |
| 9225 |
* |
| 9226 |
* // The `_.matches` iteratee shorthand. |
| 9227 |
* _.find(users, { 'age': 1, 'active': true }); |
| 9228 |
* // => object for 'pebbles' |
| 9229 |
* |
| 9230 |
* // The `_.matchesProperty` iteratee shorthand. |
| 9231 |
* _.find(users, ['active', false]); |
| 9232 |
* // => object for 'fred' |
| 9233 |
* |
| 9234 |
* // The `_.property` iteratee shorthand. |
| 9235 |
* _.find(users, 'active'); |
| 9236 |
* // => object for 'barney' |
| 9237 |
*/ |
| 9238 |
var find = createFind(findIndex); |
| 9239 |
|
| 9240 |
/** |
| 9241 |
* This method is like `_.find` except that it iterates over elements of |
| 9242 |
* `collection` from right to left. |
| 9243 |
* |
| 9244 |
* @static |
| 9245 |
* @memberOf _ |
| 9246 |
* @since 2.0.0 |
| 9247 |
* @category Collection |
| 9248 |
* @param {Array|Object} collection The collection to inspect. |
| 9249 |
* @param {Function} [predicate=_.identity] The function invoked per iteration. |
| 9250 |
* @param {number} [fromIndex=collection.length-1] The index to search from. |
| 9251 |
* @returns {*} Returns the matched element, else `undefined`. |
| 9252 |
* @example |
| 9253 |
* |
| 9254 |
* _.findLast([1, 2, 3, 4], function(n) { |
| 9255 |
* return n % 2 == 1; |
| 9256 |
* }); |
| 9257 |
* // => 3 |
| 9258 |
*/ |
| 9259 |
var findLast = createFind(findLastIndex); |
| 9260 |
|
| 9261 |
/** |
| 9262 |
* Creates a flattened array of values by running each element in `collection` |
| 9263 |
* thru `iteratee` and flattening the mapped results. The iteratee is invoked |
| 9264 |
* with three arguments: (value, index|key, collection). |
| 9265 |
* |
| 9266 |
* @static |
| 9267 |
* @memberOf _ |
| 9268 |
* @since 4.0.0 |
| 9269 |
* @category Collection |
| 9270 |
* @param {Array|Object} collection The collection to iterate over. |
| 9271 |
* @param {Function} [iteratee=_.identity] The function invoked per iteration. |
| 9272 |
* @returns {Array} Returns the new flattened array. |
| 9273 |
* @example |
| 9274 |
* |
| 9275 |
* function duplicate(n) { |
| 9276 |
* return [n, n]; |
| 9277 |
* } |
| 9278 |
* |
| 9279 |
* _.flatMap([1, 2], duplicate); |
| 9280 |
* // => [1, 1, 2, 2] |
| 9281 |
*/ |
| 9282 |
function flatMap(collection, iteratee) { |
| 9283 |
return baseFlatten(map(collection, iteratee), 1); |
| 9284 |
} |
| 9285 |
|
| 9286 |
/** |
| 9287 |
* This method is like `_.flatMap` except that it recursively flattens the |
| 9288 |
* mapped results. |
| 9289 |
* |
| 9290 |
* @static |
| 9291 |
* @memberOf _ |
| 9292 |
* @since 4.7.0 |
| 9293 |
* @category Collection |
| 9294 |
* @param {Array|Object} collection The collection to iterate over. |
| 9295 |
* @param {Function} [iteratee=_.identity] The function invoked per iteration. |
| 9296 |
* @returns {Array} Returns the new flattened array. |
| 9297 |
* @example |
| 9298 |
* |
| 9299 |
* function duplicate(n) { |
| 9300 |
* return [[[n, n]]]; |
| 9301 |
* } |
| 9302 |
* |
| 9303 |
* _.flatMapDeep([1, 2], duplicate); |
| 9304 |
* // => [1, 1, 2, 2] |
| 9305 |
*/ |
| 9306 |
function flatMapDeep(collection, iteratee) { |
| 9307 |
return baseFlatten(map(collection, iteratee), INFINITY); |
| 9308 |
} |
| 9309 |
|
| 9310 |
/** |
| 9311 |
* This method is like `_.flatMap` except that it recursively flattens the |
| 9312 |
* mapped results up to `depth` times. |
| 9313 |
* |
| 9314 |
* @static |
| 9315 |
* @memberOf _ |
| 9316 |
* @since 4.7.0 |
| 9317 |
* @category Collection |
| 9318 |
* @param {Array|Object} collection The collection to iterate over. |
| 9319 |
* @param {Function} [iteratee=_.identity] The function invoked per iteration. |
| 9320 |
* @param {number} [depth=1] The maximum recursion depth. |
| 9321 |
* @returns {Array} Returns the new flattened array. |
| 9322 |
* @example |
| 9323 |
* |
| 9324 |
* function duplicate(n) { |
| 9325 |
* return [[[n, n]]]; |
| 9326 |
* } |
| 9327 |
* |
| 9328 |
* _.flatMapDepth([1, 2], duplicate, 2); |
| 9329 |
* // => [[1, 1], [2, 2]] |
| 9330 |
*/ |
| 9331 |
function flatMapDepth(collection, iteratee, depth) { |
| 9332 |
depth = depth === undefined ? 1 : toInteger(depth); |
| 9333 |
return baseFlatten(map(collection, iteratee), depth); |
| 9334 |
} |
| 9335 |
|
| 9336 |
/** |
| 9337 |
* Iterates over elements of `collection` and invokes `iteratee` for each element. |
| 9338 |
* The iteratee is invoked with three arguments: (value, index|key, collection). |
| 9339 |
* Iteratee functions may exit iteration early by explicitly returning `false`. |
| 9340 |
* |
| 9341 |
* **Note:** As with other "Collections" methods, objects with a "length" |
| 9342 |
* property are iterated like arrays. To avoid this behavior use `_.forIn` |
| 9343 |
* or `_.forOwn` for object iteration. |
| 9344 |
* |
| 9345 |
* @static |
| 9346 |
* @memberOf _ |
| 9347 |
* @since 0.1.0 |
| 9348 |
* @alias each |
| 9349 |
* @category Collection |
| 9350 |
* @param {Array|Object} collection The collection to iterate over. |
| 9351 |
* @param {Function} [iteratee=_.identity] The function invoked per iteration. |
| 9352 |
* @returns {Array|Object} Returns `collection`. |
| 9353 |
* @see _.forEachRight |
| 9354 |
* @example |
| 9355 |
* |
| 9356 |
* _.forEach([1, 2], function(value) { |
| 9357 |
* console.log(value); |
| 9358 |
* }); |
| 9359 |
* // => Logs `1` then `2`. |
| 9360 |
* |
| 9361 |
* _.forEach({ 'a': 1, 'b': 2 }, function(value, key) { |
| 9362 |
* console.log(key); |
| 9363 |
* }); |
| 9364 |
* // => Logs 'a' then 'b' (iteration order is not guaranteed). |
| 9365 |
*/ |
| 9366 |
function forEach(collection, iteratee) { |
| 9367 |
var func = isArray(collection) ? arrayEach : baseEach; |
| 9368 |
return func(collection, getIteratee(iteratee, 3)); |
| 9369 |
} |
| 9370 |
|
| 9371 |
/** |
| 9372 |
* This method is like `_.forEach` except that it iterates over elements of |
| 9373 |
* `collection` from right to left. |
| 9374 |
* |
| 9375 |
* @static |
| 9376 |
* @memberOf _ |
| 9377 |
* @since 2.0.0 |
| 9378 |
* @alias eachRight |
| 9379 |
* @category Collection |
| 9380 |
* @param {Array|Object} collection The collection to iterate over. |
| 9381 |
* @param {Function} [iteratee=_.identity] The function invoked per iteration. |
| 9382 |
* @returns {Array|Object} Returns `collection`. |
| 9383 |
* @see _.forEach |
| 9384 |
* @example |
| 9385 |
* |
| 9386 |
* _.forEachRight([1, 2], function(value) { |
| 9387 |
* console.log(value); |
| 9388 |
* }); |
| 9389 |
* // => Logs `2` then `1`. |
| 9390 |
*/ |
| 9391 |
function forEachRight(collection, iteratee) { |
| 9392 |
var func = isArray(collection) ? arrayEachRight : baseEachRight; |
| 9393 |
return func(collection, getIteratee(iteratee, 3)); |
| 9394 |
} |
| 9395 |
|
| 9396 |
/** |
| 9397 |
* Creates an object composed of keys generated from the results of running |
| 9398 |
* each element of `collection` thru `iteratee`. The order of grouped values |
| 9399 |
* is determined by the order they occur in `collection`. The corresponding |
| 9400 |
* value of each key is an array of elements responsible for generating the |
| 9401 |
* key. The iteratee is invoked with one argument: (value). |
| 9402 |
* |
| 9403 |
* @static |
| 9404 |
* @memberOf _ |
| 9405 |
* @since 0.1.0 |
| 9406 |
* @category Collection |
| 9407 |
* @param {Array|Object} collection The collection to iterate over. |
| 9408 |
* @param {Function} [iteratee=_.identity] The iteratee to transform keys. |
| 9409 |
* @returns {Object} Returns the composed aggregate object. |
| 9410 |
* @example |
| 9411 |
* |
| 9412 |
* _.groupBy([6.1, 4.2, 6.3], Math.floor); |
| 9413 |
* // => { '4': [4.2], '6': [6.1, 6.3] } |
| 9414 |
* |
| 9415 |
* // The `_.property` iteratee shorthand. |
| 9416 |
* _.groupBy(['one', 'two', 'three'], 'length'); |
| 9417 |
* // => { '3': ['one', 'two'], '5': ['three'] } |
| 9418 |
*/ |
| 9419 |
var groupBy = createAggregator(function(result, value, key) { |
| 9420 |
if (hasOwnProperty.call(result, key)) { |
| 9421 |
result[key].push(value); |
| 9422 |
} else { |
| 9423 |
baseAssignValue(result, key, [value]); |
| 9424 |
} |
| 9425 |
}); |
| 9426 |
|
| 9427 |
/** |
| 9428 |
* Checks if `value` is in `collection`. If `collection` is a string, it's |
| 9429 |
* checked for a substring of `value`, otherwise |
| 9430 |
* [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) |
| 9431 |
* is used for equality comparisons. If `fromIndex` is negative, it's used as |
| 9432 |
* the offset from the end of `collection`. |
| 9433 |
* |
| 9434 |
* @static |
| 9435 |
* @memberOf _ |
| 9436 |
* @since 0.1.0 |
| 9437 |
* @category Collection |
| 9438 |
* @param {Array|Object|string} collection The collection to inspect. |
| 9439 |
* @param {*} value The value to search for. |
| 9440 |
* @param {number} [fromIndex=0] The index to search from. |
| 9441 |
* @param- {Object} [guard] Enables use as an iteratee for methods like `_.reduce`. |
| 9442 |
* @returns {boolean} Returns `true` if `value` is found, else `false`. |
| 9443 |
* @example |
| 9444 |
* |
| 9445 |
* _.includes([1, 2, 3], 1); |
| 9446 |
* // => true |
| 9447 |
* |
| 9448 |
* _.includes([1, 2, 3], 1, 2); |
| 9449 |
* // => false |
| 9450 |
* |
| 9451 |
* _.includes({ 'a': 1, 'b': 2 }, 1); |
| 9452 |
* // => true |
| 9453 |
* |
| 9454 |
* _.includes('abcd', 'bc'); |
| 9455 |
* // => true |
| 9456 |
*/ |
| 9457 |
function includes(collection, value, fromIndex, guard) { |
| 9458 |
collection = isArrayLike(collection) ? collection : values(collection); |
| 9459 |
fromIndex = (fromIndex && !guard) ? toInteger(fromIndex) : 0; |
| 9460 |
|
| 9461 |
var length = collection.length; |
| 9462 |
if (fromIndex < 0) { |
| 9463 |
fromIndex = nativeMax(length + fromIndex, 0); |
| 9464 |
} |
| 9465 |
return isString(collection) |
| 9466 |
? (fromIndex <= length && collection.indexOf(value, fromIndex) > -1) |
| 9467 |
: (!!length && baseIndexOf(collection, value, fromIndex) > -1); |
| 9468 |
} |
| 9469 |
|
| 9470 |
/** |
| 9471 |
* Invokes the method at `path` of each element in `collection`, returning |
| 9472 |
* an array of the results of each invoked method. Any additional arguments |
| 9473 |
* are provided to each invoked method. If `path` is a function, it's invoked |
| 9474 |
* for, and `this` bound to, each element in `collection`. |
| 9475 |
* |
| 9476 |
* @static |
| 9477 |
* @memberOf _ |
| 9478 |
* @since 4.0.0 |
| 9479 |
* @category Collection |
| 9480 |
* @param {Array|Object} collection The collection to iterate over. |
| 9481 |
* @param {Array|Function|string} path The path of the method to invoke or |
| 9482 |
* the function invoked per iteration. |
| 9483 |
* @param {...*} [args] The arguments to invoke each method with. |
| 9484 |
* @returns {Array} Returns the array of results. |
| 9485 |
* @example |
| 9486 |
* |
| 9487 |
* _.invokeMap([[5, 1, 7], [3, 2, 1]], 'sort'); |
| 9488 |
* // => [[1, 5, 7], [1, 2, 3]] |
| 9489 |
* |
| 9490 |
* _.invokeMap([123, 456], String.prototype.split, ''); |
| 9491 |
* // => [['1', '2', '3'], ['4', '5', '6']] |
| 9492 |
*/ |
| 9493 |
var invokeMap = baseRest(function(collection, path, args) { |
| 9494 |
var index = -1, |
| 9495 |
isFunc = typeof path == 'function', |
| 9496 |
result = isArrayLike(collection) ? Array(collection.length) : []; |
| 9497 |
|
| 9498 |
baseEach(collection, function(value) { |
| 9499 |
result[++index] = isFunc ? apply(path, value, args) : baseInvoke(value, path, args); |
| 9500 |
}); |
| 9501 |
return result; |
| 9502 |
}); |
| 9503 |
|
| 9504 |
/** |
| 9505 |
* Creates an object composed of keys generated from the results of running |
| 9506 |
* each element of `collection` thru `iteratee`. The corresponding value of |
| 9507 |
* each key is the last element responsible for generating the key. The |
| 9508 |
* iteratee is invoked with one argument: (value). |
| 9509 |
* |
| 9510 |
* @static |
| 9511 |
* @memberOf _ |
| 9512 |
* @since 4.0.0 |
| 9513 |
* @category Collection |
| 9514 |
* @param {Array|Object} collection The collection to iterate over. |
| 9515 |
* @param {Function} [iteratee=_.identity] The iteratee to transform keys. |
| 9516 |
* @returns {Object} Returns the composed aggregate object. |
| 9517 |
* @example |
| 9518 |
* |
| 9519 |
* var array = [ |
| 9520 |
* { 'dir': 'left', 'code': 97 }, |
| 9521 |
* { 'dir': 'right', 'code': 100 } |
| 9522 |
* ]; |
| 9523 |
* |
| 9524 |
* _.keyBy(array, function(o) { |
| 9525 |
* return String.fromCharCode(o.code); |
| 9526 |
* }); |
| 9527 |
* // => { 'a': { 'dir': 'left', 'code': 97 }, 'd': { 'dir': 'right', 'code': 100 } } |
| 9528 |
* |
| 9529 |
* _.keyBy(array, 'dir'); |
| 9530 |
* // => { 'left': { 'dir': 'left', 'code': 97 }, 'right': { 'dir': 'right', 'code': 100 } } |
| 9531 |
*/ |
| 9532 |
var keyBy = createAggregator(function(result, value, key) { |
| 9533 |
baseAssignValue(result, key, value); |
| 9534 |
}); |
| 9535 |
|
| 9536 |
/** |
| 9537 |
* Creates an array of values by running each element in `collection` thru |
| 9538 |
* `iteratee`. The iteratee is invoked with three arguments: |
| 9539 |
* (value, index|key, collection). |
| 9540 |
* |
| 9541 |
* Many lodash methods are guarded to work as iteratees for methods like |
| 9542 |
* `_.every`, `_.filter`, `_.map`, `_.mapValues`, `_.reject`, and `_.some`. |
| 9543 |
* |
| 9544 |
* The guarded methods are: |
| 9545 |
* `ary`, `chunk`, `curry`, `curryRight`, `drop`, `dropRight`, `every`, |
| 9546 |
* `fill`, `invert`, `parseInt`, `random`, `range`, `rangeRight`, `repeat`, |
| 9547 |
* `sampleSize`, `slice`, `some`, `sortBy`, `split`, `take`, `takeRight`, |
| 9548 |
* `template`, `trim`, `trimEnd`, `trimStart`, and `words` |
| 9549 |
* |
| 9550 |
* @static |
| 9551 |
* @memberOf _ |
| 9552 |
* @since 0.1.0 |
| 9553 |
* @category Collection |
| 9554 |
* @param {Array|Object} collection The collection to iterate over. |
| 9555 |
* @param {Function} [iteratee=_.identity] The function invoked per iteration. |
| 9556 |
* @returns {Array} Returns the new mapped array. |
| 9557 |
* @example |
| 9558 |
* |
| 9559 |
* function square(n) { |
| 9560 |
* return n * n; |
| 9561 |
* } |
| 9562 |
* |
| 9563 |
* _.map([4, 8], square); |
| 9564 |
* // => [16, 64] |
| 9565 |
* |
| 9566 |
* _.map({ 'a': 4, 'b': 8 }, square); |
| 9567 |
* // => [16, 64] (iteration order is not guaranteed) |
| 9568 |
* |
| 9569 |
* var users = [ |
| 9570 |
* { 'user': 'barney' }, |
| 9571 |
* { 'user': 'fred' } |
| 9572 |
* ]; |
| 9573 |
* |
| 9574 |
* // The `_.property` iteratee shorthand. |
| 9575 |
* _.map(users, 'user'); |
| 9576 |
* // => ['barney', 'fred'] |
| 9577 |
*/ |
| 9578 |
function map(collection, iteratee) { |
| 9579 |
var func = isArray(collection) ? arrayMap : baseMap; |
| 9580 |
return func(collection, getIteratee(iteratee, 3)); |
| 9581 |
} |
| 9582 |
|
| 9583 |
/** |
| 9584 |
* This method is like `_.sortBy` except that it allows specifying the sort |
| 9585 |
* orders of the iteratees to sort by. If `orders` is unspecified, all values |
| 9586 |
* are sorted in ascending order. Otherwise, specify an order of "desc" for |
| 9587 |
* descending or "asc" for ascending sort order of corresponding values. |
| 9588 |
* |
| 9589 |
* @static |
| 9590 |
* @memberOf _ |
| 9591 |
* @since 4.0.0 |
| 9592 |
* @category Collection |
| 9593 |
* @param {Array|Object} collection The collection to iterate over. |
| 9594 |
* @param {Array[]|Function[]|Object[]|string[]} [iteratees=[_.identity]] |
| 9595 |
* The iteratees to sort by. |
| 9596 |
* @param {string[]} [orders] The sort orders of `iteratees`. |
| 9597 |
* @param- {Object} [guard] Enables use as an iteratee for methods like `_.reduce`. |
| 9598 |
* @returns {Array} Returns the new sorted array. |
| 9599 |
* @example |
| 9600 |
* |
| 9601 |
* var users = [ |
| 9602 |
* { 'user': 'fred', 'age': 48 }, |
| 9603 |
* { 'user': 'barney', 'age': 34 }, |
| 9604 |
* { 'user': 'fred', 'age': 40 }, |
| 9605 |
* { 'user': 'barney', 'age': 36 } |
| 9606 |
* ]; |
| 9607 |
* |
| 9608 |
* // Sort by `user` in ascending order and by `age` in descending order. |
| 9609 |
* _.orderBy(users, ['user', 'age'], ['asc', 'desc']); |
| 9610 |
* // => objects for [['barney', 36], ['barney', 34], ['fred', 48], ['fred', 40]] |
| 9611 |
*/ |
| 9612 |
function orderBy(collection, iteratees, orders, guard) { |
| 9613 |
if (collection == null) { |
| 9614 |
return []; |
| 9615 |
} |
| 9616 |
if (!isArray(iteratees)) { |
| 9617 |
iteratees = iteratees == null ? [] : [iteratees]; |
| 9618 |
} |
| 9619 |
orders = guard ? undefined : orders; |
| 9620 |
if (!isArray(orders)) { |
| 9621 |
orders = orders == null ? [] : [orders]; |
| 9622 |
} |
| 9623 |
return baseOrderBy(collection, iteratees, orders); |
| 9624 |
} |
| 9625 |
|
| 9626 |
/** |
| 9627 |
* Creates an array of elements split into two groups, the first of which |
| 9628 |
* contains elements `predicate` returns truthy for, the second of which |
| 9629 |
* contains elements `predicate` returns falsey for. The predicate is |
| 9630 |
* invoked with one argument: (value). |
| 9631 |
* |
| 9632 |
* @static |
| 9633 |
* @memberOf _ |
| 9634 |
* @since 3.0.0 |
| 9635 |
* @category Collection |
| 9636 |
* @param {Array|Object} collection The collection to iterate over. |
| 9637 |
* @param {Function} [predicate=_.identity] The function invoked per iteration. |
| 9638 |
* @returns {Array} Returns the array of grouped elements. |
| 9639 |
* @example |
| 9640 |
* |
| 9641 |
* var users = [ |
| 9642 |
* { 'user': 'barney', 'age': 36, 'active': false }, |
| 9643 |
* { 'user': 'fred', 'age': 40, 'active': true }, |
| 9644 |
* { 'user': 'pebbles', 'age': 1, 'active': false } |
| 9645 |
* ]; |
| 9646 |
* |
| 9647 |
* _.partition(users, function(o) { return o.active; }); |
| 9648 |
* // => objects for [['fred'], ['barney', 'pebbles']] |
| 9649 |
* |
| 9650 |
* // The `_.matches` iteratee shorthand. |
| 9651 |
* _.partition(users, { 'age': 1, 'active': false }); |
| 9652 |
* // => objects for [['pebbles'], ['barney', 'fred']] |
| 9653 |
* |
| 9654 |
* // The `_.matchesProperty` iteratee shorthand. |
| 9655 |
* _.partition(users, ['active', false]); |
| 9656 |
* // => objects for [['barney', 'pebbles'], ['fred']] |
| 9657 |
* |
| 9658 |
* // The `_.property` iteratee shorthand. |
| 9659 |
* _.partition(users, 'active'); |
| 9660 |
* // => objects for [['fred'], ['barney', 'pebbles']] |
| 9661 |
*/ |
| 9662 |
var partition = createAggregator(function(result, value, key) { |
| 9663 |
result[key ? 0 : 1].push(value); |
| 9664 |
}, function() { return [[], []]; }); |
| 9665 |
|
| 9666 |
/** |
| 9667 |
* Reduces `collection` to a value which is the accumulated result of running |
| 9668 |
* each element in `collection` thru `iteratee`, where each successive |
| 9669 |
* invocation is supplied the return value of the previous. If `accumulator` |
| 9670 |
* is not given, the first element of `collection` is used as the initial |
| 9671 |
* value. The iteratee is invoked with four arguments: |
| 9672 |
* (accumulator, value, index|key, collection). |
| 9673 |
* |
| 9674 |
* Many lodash methods are guarded to work as iteratees for methods like |
| 9675 |
* `_.reduce`, `_.reduceRight`, and `_.transform`. |
| 9676 |
* |
| 9677 |
* The guarded methods are: |
| 9678 |
* `assign`, `defaults`, `defaultsDeep`, `includes`, `merge`, `orderBy`, |
| 9679 |
* and `sortBy` |
| 9680 |
* |
| 9681 |
* @static |
| 9682 |
* @memberOf _ |
| 9683 |
* @since 0.1.0 |
| 9684 |
* @category Collection |
| 9685 |
* @param {Array|Object} collection The collection to iterate over. |
| 9686 |
* @param {Function} [iteratee=_.identity] The function invoked per iteration. |
| 9687 |
* @param {*} [accumulator] The initial value. |
| 9688 |
* @returns {*} Returns the accumulated value. |
| 9689 |
* @see _.reduceRight |
| 9690 |
* @example |
| 9691 |
* |
| 9692 |
* _.reduce([1, 2], function(sum, n) { |
| 9693 |
* return sum + n; |
| 9694 |
* }, 0); |
| 9695 |
* // => 3 |
| 9696 |
* |
| 9697 |
* _.reduce({ 'a': 1, 'b': 2, 'c': 1 }, function(result, value, key) { |
| 9698 |
* (result[value] || (result[value] = [])).push(key); |
| 9699 |
* return result; |
| 9700 |
* }, {}); |
| 9701 |
* // => { '1': ['a', 'c'], '2': ['b'] } (iteration order is not guaranteed) |
| 9702 |
*/ |
| 9703 |
function reduce(collection, iteratee, accumulator) { |
| 9704 |
var func = isArray(collection) ? arrayReduce : baseReduce, |
| 9705 |
initAccum = arguments.length < 3; |
| 9706 |
|
| 9707 |
return func(collection, getIteratee(iteratee, 4), accumulator, initAccum, baseEach); |
| 9708 |
} |
| 9709 |
|
| 9710 |
/** |
| 9711 |
* This method is like `_.reduce` except that it iterates over elements of |
| 9712 |
* `collection` from right to left. |
| 9713 |
* |
| 9714 |
* @static |
| 9715 |
* @memberOf _ |
| 9716 |
* @since 0.1.0 |
| 9717 |
* @category Collection |
| 9718 |
* @param {Array|Object} collection The collection to iterate over. |
| 9719 |
* @param {Function} [iteratee=_.identity] The function invoked per iteration. |
| 9720 |
* @param {*} [accumulator] The initial value. |
| 9721 |
* @returns {*} Returns the accumulated value. |
| 9722 |
* @see _.reduce |
| 9723 |
* @example |
| 9724 |
* |
| 9725 |
* var array = [[0, 1], [2, 3], [4, 5]]; |
| 9726 |
* |
| 9727 |
* _.reduceRight(array, function(flattened, other) { |
| 9728 |
* return flattened.concat(other); |
| 9729 |
* }, []); |
| 9730 |
* // => [4, 5, 2, 3, 0, 1] |
| 9731 |
*/ |
| 9732 |
function reduceRight(collection, iteratee, accumulator) { |
| 9733 |
var func = isArray(collection) ? arrayReduceRight : baseReduce, |
| 9734 |
initAccum = arguments.length < 3; |
| 9735 |
|
| 9736 |
return func(collection, getIteratee(iteratee, 4), accumulator, initAccum, baseEachRight); |
| 9737 |
} |
| 9738 |
|
| 9739 |
/** |
| 9740 |
* The opposite of `_.filter`; this method returns the elements of `collection` |
| 9741 |
* that `predicate` does **not** return truthy for. |
| 9742 |
* |
| 9743 |
* @static |
| 9744 |
* @memberOf _ |
| 9745 |
* @since 0.1.0 |
| 9746 |
* @category Collection |
| 9747 |
* @param {Array|Object} collection The collection to iterate over. |
| 9748 |
* @param {Function} [predicate=_.identity] The function invoked per iteration. |
| 9749 |
* @returns {Array} Returns the new filtered array. |
| 9750 |
* @see _.filter |
| 9751 |
* @example |
| 9752 |
* |
| 9753 |
* var users = [ |
| 9754 |
* { 'user': 'barney', 'age': 36, 'active': false }, |
| 9755 |
* { 'user': 'fred', 'age': 40, 'active': true } |
| 9756 |
* ]; |
| 9757 |
* |
| 9758 |
* _.reject(users, function(o) { return !o.active; }); |
| 9759 |
* // => objects for ['fred'] |
| 9760 |
* |
| 9761 |
* // The `_.matches` iteratee shorthand. |
| 9762 |
* _.reject(users, { 'age': 40, 'active': true }); |
| 9763 |
* // => objects for ['barney'] |
| 9764 |
* |
| 9765 |
* // The `_.matchesProperty` iteratee shorthand. |
| 9766 |
* _.reject(users, ['active', false]); |
| 9767 |
* // => objects for ['fred'] |
| 9768 |
* |
| 9769 |
* // The `_.property` iteratee shorthand. |
| 9770 |
* _.reject(users, 'active'); |
| 9771 |
* // => objects for ['barney'] |
| 9772 |
*/ |
| 9773 |
function reject(collection, predicate) { |
| 9774 |
var func = isArray(collection) ? arrayFilter : baseFilter; |
| 9775 |
return func(collection, negate(getIteratee(predicate, 3))); |
| 9776 |
} |
| 9777 |
|
| 9778 |
/** |
| 9779 |
* Gets a random element from `collection`. |
| 9780 |
* |
| 9781 |
* @static |
| 9782 |
* @memberOf _ |
| 9783 |
* @since 2.0.0 |
| 9784 |
* @category Collection |
| 9785 |
* @param {Array|Object} collection The collection to sample. |
| 9786 |
* @returns {*} Returns the random element. |
| 9787 |
* @example |
| 9788 |
* |
| 9789 |
* _.sample([1, 2, 3, 4]); |
| 9790 |
* // => 2 |
| 9791 |
*/ |
| 9792 |
function sample(collection) { |
| 9793 |
var func = isArray(collection) ? arraySample : baseSample; |
| 9794 |
return func(collection); |
| 9795 |
} |
| 9796 |
|
| 9797 |
/** |
| 9798 |
* Gets `n` random elements at unique keys from `collection` up to the |
| 9799 |
* size of `collection`. |
| 9800 |
* |
| 9801 |
* @static |
| 9802 |
* @memberOf _ |
| 9803 |
* @since 4.0.0 |
| 9804 |
* @category Collection |
| 9805 |
* @param {Array|Object} collection The collection to sample. |
| 9806 |
* @param {number} [n=1] The number of elements to sample. |
| 9807 |
* @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. |
| 9808 |
* @returns {Array} Returns the random elements. |
| 9809 |
* @example |
| 9810 |
* |
| 9811 |
* _.sampleSize([1, 2, 3], 2); |
| 9812 |
* // => [3, 1] |
| 9813 |
* |
| 9814 |
* _.sampleSize([1, 2, 3], 4); |
| 9815 |
* // => [2, 3, 1] |
| 9816 |
*/ |
| 9817 |
function sampleSize(collection, n, guard) { |
| 9818 |
if ((guard ? isIterateeCall(collection, n, guard) : n === undefined)) { |
| 9819 |
n = 1; |
| 9820 |
} else { |
| 9821 |
n = toInteger(n); |
| 9822 |
} |
| 9823 |
var func = isArray(collection) ? arraySampleSize : baseSampleSize; |
| 9824 |
return func(collection, n); |
| 9825 |
} |
| 9826 |
|
| 9827 |
/** |
| 9828 |
* Creates an array of shuffled values, using a version of the |
| 9829 |
* [Fisher-Yates shuffle](https://en.wikipedia.org/wiki/Fisher-Yates_shuffle). |
| 9830 |
* |
| 9831 |
* @static |
| 9832 |
* @memberOf _ |
| 9833 |
* @since 0.1.0 |
| 9834 |
* @category Collection |
| 9835 |
* @param {Array|Object} collection The collection to shuffle. |
| 9836 |
* @returns {Array} Returns the new shuffled array. |
| 9837 |
* @example |
| 9838 |
* |
| 9839 |
* _.shuffle([1, 2, 3, 4]); |
| 9840 |
* // => [4, 1, 3, 2] |
| 9841 |
*/ |
| 9842 |
function shuffle(collection) { |
| 9843 |
var func = isArray(collection) ? arrayShuffle : baseShuffle; |
| 9844 |
return func(collection); |
| 9845 |
} |
| 9846 |
|
| 9847 |
/** |
| 9848 |
* Gets the size of `collection` by returning its length for array-like |
| 9849 |
* values or the number of own enumerable string keyed properties for objects. |
| 9850 |
* |
| 9851 |
* @static |
| 9852 |
* @memberOf _ |
| 9853 |
* @since 0.1.0 |
| 9854 |
* @category Collection |
| 9855 |
* @param {Array|Object|string} collection The collection to inspect. |
| 9856 |
* @returns {number} Returns the collection size. |
| 9857 |
* @example |
| 9858 |
* |
| 9859 |
* _.size([1, 2, 3]); |
| 9860 |
* // => 3 |
| 9861 |
* |
| 9862 |
* _.size({ 'a': 1, 'b': 2 }); |
| 9863 |
* // => 2 |
| 9864 |
* |
| 9865 |
* _.size('pebbles'); |
| 9866 |
* // => 7 |
| 9867 |
*/ |
| 9868 |
function size(collection) { |
| 9869 |
if (collection == null) { |
| 9870 |
return 0; |
| 9871 |
} |
| 9872 |
if (isArrayLike(collection)) { |
| 9873 |
return isString(collection) ? stringSize(collection) : collection.length; |
| 9874 |
} |
| 9875 |
var tag = getTag(collection); |
| 9876 |
if (tag == mapTag || tag == setTag) { |
| 9877 |
return collection.size; |
| 9878 |
} |
| 9879 |
return baseKeys(collection).length; |
| 9880 |
} |
| 9881 |
|
| 9882 |
/** |
| 9883 |
* Checks if `predicate` returns truthy for **any** element of `collection`. |
| 9884 |
* Iteration is stopped once `predicate` returns truthy. The predicate is |
| 9885 |
* invoked with three arguments: (value, index|key, collection). |
| 9886 |
* |
| 9887 |
* @static |
| 9888 |
* @memberOf _ |
| 9889 |
* @since 0.1.0 |
| 9890 |
* @category Collection |
| 9891 |
* @param {Array|Object} collection The collection to iterate over. |
| 9892 |
* @param {Function} [predicate=_.identity] The function invoked per iteration. |
| 9893 |
* @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. |
| 9894 |
* @returns {boolean} Returns `true` if any element passes the predicate check, |
| 9895 |
* else `false`. |
| 9896 |
* @example |
| 9897 |
* |
| 9898 |
* _.some([null, 0, 'yes', false], Boolean); |
| 9899 |
* // => true |
| 9900 |
* |
| 9901 |
* var users = [ |
| 9902 |
* { 'user': 'barney', 'active': true }, |
| 9903 |
* { 'user': 'fred', 'active': false } |
| 9904 |
* ]; |
| 9905 |
* |
| 9906 |
* // The `_.matches` iteratee shorthand. |
| 9907 |
* _.some(users, { 'user': 'barney', 'active': false }); |
| 9908 |
* // => false |
| 9909 |
* |
| 9910 |
* // The `_.matchesProperty` iteratee shorthand. |
| 9911 |
* _.some(users, ['active', false]); |
| 9912 |
* // => true |
| 9913 |
* |
| 9914 |
* // The `_.property` iteratee shorthand. |
| 9915 |
* _.some(users, 'active'); |
| 9916 |
* // => true |
| 9917 |
*/ |
| 9918 |
function some(collection, predicate, guard) { |
| 9919 |
var func = isArray(collection) ? arraySome : baseSome; |
| 9920 |
if (guard && isIterateeCall(collection, predicate, guard)) { |
| 9921 |
predicate = undefined; |
| 9922 |
} |
| 9923 |
return func(collection, getIteratee(predicate, 3)); |
| 9924 |
} |
| 9925 |
|
| 9926 |
/** |
| 9927 |
* Creates an array of elements, sorted in ascending order by the results of |
| 9928 |
* running each element in a collection thru each iteratee. This method |
| 9929 |
* performs a stable sort, that is, it preserves the original sort order of |
| 9930 |
* equal elements. The iteratees are invoked with one argument: (value). |
| 9931 |
* |
| 9932 |
* @static |
| 9933 |
* @memberOf _ |
| 9934 |
* @since 0.1.0 |
| 9935 |
* @category Collection |
| 9936 |
* @param {Array|Object} collection The collection to iterate over. |
| 9937 |
* @param {...(Function|Function[])} [iteratees=[_.identity]] |
| 9938 |
* The iteratees to sort by. |
| 9939 |
* @returns {Array} Returns the new sorted array. |
| 9940 |
* @example |
| 9941 |
* |
| 9942 |
* var users = [ |
| 9943 |
* { 'user': 'fred', 'age': 48 }, |
| 9944 |
* { 'user': 'barney', 'age': 36 }, |
| 9945 |
* { 'user': 'fred', 'age': 30 }, |
| 9946 |
* { 'user': 'barney', 'age': 34 } |
| 9947 |
* ]; |
| 9948 |
* |
| 9949 |
* _.sortBy(users, [function(o) { return o.user; }]); |
| 9950 |
* // => objects for [['barney', 36], ['barney', 34], ['fred', 48], ['fred', 30]] |
| 9951 |
* |
| 9952 |
* _.sortBy(users, ['user', 'age']); |
| 9953 |
* // => objects for [['barney', 34], ['barney', 36], ['fred', 30], ['fred', 48]] |
| 9954 |
*/ |
| 9955 |
var sortBy = baseRest(function(collection, iteratees) { |
| 9956 |
if (collection == null) { |
| 9957 |
return []; |
| 9958 |
} |
| 9959 |
var length = iteratees.length; |
| 9960 |
if (length > 1 && isIterateeCall(collection, iteratees[0], iteratees[1])) { |
| 9961 |
iteratees = []; |
| 9962 |
} else if (length > 2 && isIterateeCall(iteratees[0], iteratees[1], iteratees[2])) { |
| 9963 |
iteratees = [iteratees[0]]; |
| 9964 |
} |
| 9965 |
return baseOrderBy(collection, baseFlatten(iteratees, 1), []); |
| 9966 |
}); |
| 9967 |
|
| 9968 |
/*------------------------------------------------------------------------*/ |
| 9969 |
|
| 9970 |
/** |
| 9971 |
* Gets the timestamp of the number of milliseconds that have elapsed since |
| 9972 |
* the Unix epoch (1 January 1970 00:00:00 UTC). |
| 9973 |
* |
| 9974 |
* @static |
| 9975 |
* @memberOf _ |
| 9976 |
* @since 2.4.0 |
| 9977 |
* @category Date |
| 9978 |
* @returns {number} Returns the timestamp. |
| 9979 |
* @example |
| 9980 |
* |
| 9981 |
* _.defer(function(stamp) { |
| 9982 |
* console.log(_.now() - stamp); |
| 9983 |
* }, _.now()); |
| 9984 |
* // => Logs the number of milliseconds it took for the deferred invocation. |
| 9985 |
*/ |
| 9986 |
var now = ctxNow || function() { |
| 9987 |
return root.Date.now(); |
| 9988 |
}; |
| 9989 |
|
| 9990 |
/*------------------------------------------------------------------------*/ |
| 9991 |
|
| 9992 |
/** |
| 9993 |
* The opposite of `_.before`; this method creates a function that invokes |
| 9994 |
* `func` once it's called `n` or more times. |
| 9995 |
* |
| 9996 |
* @static |
| 9997 |
* @memberOf _ |
| 9998 |
* @since 0.1.0 |
| 9999 |
* @category Function |
| 10000 |
* @param {number} n The number of calls before `func` is invoked. |
| 10001 |
* @param {Function} func The function to restrict. |
| 10002 |
* @returns {Function} Returns the new restricted function. |
| 10003 |
* @example |
| 10004 |
* |
| 10005 |
* var saves = ['profile', 'settings']; |
| 10006 |
* |
| 10007 |
* var done = _.after(saves.length, function() { |
| 10008 |
* console.log('done saving!'); |
| 10009 |
* }); |
| 10010 |
* |
| 10011 |
* _.forEach(saves, function(type) { |
| 10012 |
* asyncSave({ 'type': type, 'complete': done }); |
| 10013 |
* }); |
| 10014 |
* // => Logs 'done saving!' after the two async saves have completed. |
| 10015 |
*/ |
| 10016 |
function after(n, func) { |
| 10017 |
if (typeof func != 'function') { |
| 10018 |
throw new TypeError(FUNC_ERROR_TEXT); |
| 10019 |
} |
| 10020 |
n = toInteger(n); |
| 10021 |
return function() { |
| 10022 |
if (--n < 1) { |
| 10023 |
return func.apply(this, arguments); |
| 10024 |
} |
| 10025 |
}; |
| 10026 |
} |
| 10027 |
|
| 10028 |
/** |
| 10029 |
* Creates a function that invokes `func`, with up to `n` arguments, |
| 10030 |
* ignoring any additional arguments. |
| 10031 |
* |
| 10032 |
* @static |
| 10033 |
* @memberOf _ |
| 10034 |
* @since 3.0.0 |
| 10035 |
* @category Function |
| 10036 |
* @param {Function} func The function to cap arguments for. |
| 10037 |
* @param {number} [n=func.length] The arity cap. |
| 10038 |
* @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. |
| 10039 |
* @returns {Function} Returns the new capped function. |
| 10040 |
* @example |
| 10041 |
* |
| 10042 |
* _.map(['6', '8', '10'], _.ary(parseInt, 1)); |
| 10043 |
* // => [6, 8, 10] |
| 10044 |
*/ |
| 10045 |
function ary(func, n, guard) { |
| 10046 |
n = guard ? undefined : n; |
| 10047 |
n = (func && n == null) ? func.length : n; |
| 10048 |
return createWrap(func, WRAP_ARY_FLAG, undefined, undefined, undefined, undefined, n); |
| 10049 |
} |
| 10050 |
|
| 10051 |
/** |
| 10052 |
* Creates a function that invokes `func`, with the `this` binding and arguments |
| 10053 |
* of the created function, while it's called less than `n` times. Subsequent |
| 10054 |
* calls to the created function return the result of the last `func` invocation. |
| 10055 |
* |
| 10056 |
* @static |
| 10057 |
* @memberOf _ |
| 10058 |
* @since 3.0.0 |
| 10059 |
* @category Function |
| 10060 |
* @param {number} n The number of calls at which `func` is no longer invoked. |
| 10061 |
* @param {Function} func The function to restrict. |
| 10062 |
* @returns {Function} Returns the new restricted function. |
| 10063 |
* @example |
| 10064 |
* |
| 10065 |
* jQuery(element).on('click', _.before(5, addContactToList)); |
| 10066 |
* // => Allows adding up to 4 contacts to the list. |
| 10067 |
*/ |
| 10068 |
function before(n, func) { |
| 10069 |
var result; |
| 10070 |
if (typeof func != 'function') { |
| 10071 |
throw new TypeError(FUNC_ERROR_TEXT); |
| 10072 |
} |
| 10073 |
n = toInteger(n); |
| 10074 |
return function() { |
| 10075 |
if (--n > 0) { |
| 10076 |
result = func.apply(this, arguments); |
| 10077 |
} |
| 10078 |
if (n <= 1) { |
| 10079 |
func = undefined; |
| 10080 |
} |
| 10081 |
return result; |
| 10082 |
}; |
| 10083 |
} |
| 10084 |
|
| 10085 |
/** |
| 10086 |
* Creates a function that invokes `func` with the `this` binding of `thisArg` |
| 10087 |
* and `partials` prepended to the arguments it receives. |
| 10088 |
* |
| 10089 |
* The `_.bind.placeholder` value, which defaults to `_` in monolithic builds, |
| 10090 |
* may be used as a placeholder for partially applied arguments. |
| 10091 |
* |
| 10092 |
* **Note:** Unlike native `Function#bind`, this method doesn't set the "length" |
| 10093 |
* property of bound functions. |
| 10094 |
* |
| 10095 |
* @static |
| 10096 |
* @memberOf _ |
| 10097 |
* @since 0.1.0 |
| 10098 |
* @category Function |
| 10099 |
* @param {Function} func The function to bind. |
| 10100 |
* @param {*} thisArg The `this` binding of `func`. |
| 10101 |
* @param {...*} [partials] The arguments to be partially applied. |
| 10102 |
* @returns {Function} Returns the new bound function. |
| 10103 |
* @example |
| 10104 |
* |
| 10105 |
* function greet(greeting, punctuation) { |
| 10106 |
* return greeting + ' ' + this.user + punctuation; |
| 10107 |
* } |
| 10108 |
* |
| 10109 |
* var object = { 'user': 'fred' }; |
| 10110 |
* |
| 10111 |
* var bound = _.bind(greet, object, 'hi'); |
| 10112 |
* bound('!'); |
| 10113 |
* // => 'hi fred!' |
| 10114 |
* |
| 10115 |
* // Bound with placeholders. |
| 10116 |
* var bound = _.bind(greet, object, _, '!'); |
| 10117 |
* bound('hi'); |
| 10118 |
* // => 'hi fred!' |
| 10119 |
*/ |
| 10120 |
var bind = baseRest(function(func, thisArg, partials) { |
| 10121 |
var bitmask = WRAP_BIND_FLAG; |
| 10122 |
if (partials.length) { |
| 10123 |
var holders = replaceHolders(partials, getHolder(bind)); |
| 10124 |
bitmask |= WRAP_PARTIAL_FLAG; |
| 10125 |
} |
| 10126 |
return createWrap(func, bitmask, thisArg, partials, holders); |
| 10127 |
}); |
| 10128 |
|
| 10129 |
/** |
| 10130 |
* Creates a function that invokes the method at `object[key]` with `partials` |
| 10131 |
* prepended to the arguments it receives. |
| 10132 |
* |
| 10133 |
* This method differs from `_.bind` by allowing bound functions to reference |
| 10134 |
* methods that may be redefined or don't yet exist. See |
| 10135 |
* [Peter Michaux's article](http://peter.michaux.ca/articles/lazy-function-definition-pattern) |
| 10136 |
* for more details. |
| 10137 |
* |
| 10138 |
* The `_.bindKey.placeholder` value, which defaults to `_` in monolithic |
| 10139 |
* builds, may be used as a placeholder for partially applied arguments. |
| 10140 |
* |
| 10141 |
* @static |
| 10142 |
* @memberOf _ |
| 10143 |
* @since 0.10.0 |
| 10144 |
* @category Function |
| 10145 |
* @param {Object} object The object to invoke the method on. |
| 10146 |
* @param {string} key The key of the method. |
| 10147 |
* @param {...*} [partials] The arguments to be partially applied. |
| 10148 |
* @returns {Function} Returns the new bound function. |
| 10149 |
* @example |
| 10150 |
* |
| 10151 |
* var object = { |
| 10152 |
* 'user': 'fred', |
| 10153 |
* 'greet': function(greeting, punctuation) { |
| 10154 |
* return greeting + ' ' + this.user + punctuation; |
| 10155 |
* } |
| 10156 |
* }; |
| 10157 |
* |
| 10158 |
* var bound = _.bindKey(object, 'greet', 'hi'); |
| 10159 |
* bound('!'); |
| 10160 |
* // => 'hi fred!' |
| 10161 |
* |
| 10162 |
* object.greet = function(greeting, punctuation) { |
| 10163 |
* return greeting + 'ya ' + this.user + punctuation; |
| 10164 |
* }; |
| 10165 |
* |
| 10166 |
* bound('!'); |
| 10167 |
* // => 'hiya fred!' |
| 10168 |
* |
| 10169 |
* // Bound with placeholders. |
| 10170 |
* var bound = _.bindKey(object, 'greet', _, '!'); |
| 10171 |
* bound('hi'); |
| 10172 |
* // => 'hiya fred!' |
| 10173 |
*/ |
| 10174 |
var bindKey = baseRest(function(object, key, partials) { |
| 10175 |
var bitmask = WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG; |
| 10176 |
if (partials.length) { |
| 10177 |
var holders = replaceHolders(partials, getHolder(bindKey)); |
| 10178 |
bitmask |= WRAP_PARTIAL_FLAG; |
| 10179 |
} |
| 10180 |
return createWrap(key, bitmask, object, partials, holders); |
| 10181 |
}); |
| 10182 |
|
| 10183 |
/** |
| 10184 |
* Creates a function that accepts arguments of `func` and either invokes |
| 10185 |
* `func` returning its result, if at least `arity` number of arguments have |
| 10186 |
* been provided, or returns a function that accepts the remaining `func` |
| 10187 |
* arguments, and so on. The arity of `func` may be specified if `func.length` |
| 10188 |
* is not sufficient. |
| 10189 |
* |
| 10190 |
* The `_.curry.placeholder` value, which defaults to `_` in monolithic builds, |
| 10191 |
* may be used as a placeholder for provided arguments. |
| 10192 |
* |
| 10193 |
* **Note:** This method doesn't set the "length" property of curried functions. |
| 10194 |
* |
| 10195 |
* @static |
| 10196 |
* @memberOf _ |
| 10197 |
* @since 2.0.0 |
| 10198 |
* @category Function |
| 10199 |
* @param {Function} func The function to curry. |
| 10200 |
* @param {number} [arity=func.length] The arity of `func`. |
| 10201 |
* @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. |
| 10202 |
* @returns {Function} Returns the new curried function. |
| 10203 |
* @example |
| 10204 |
* |
| 10205 |
* var abc = function(a, b, c) { |
| 10206 |
* return [a, b, c]; |
| 10207 |
* }; |
| 10208 |
* |
| 10209 |
* var curried = _.curry(abc); |
| 10210 |
* |
| 10211 |
* curried(1)(2)(3); |
| 10212 |
* // => [1, 2, 3] |
| 10213 |
* |
| 10214 |
* curried(1, 2)(3); |
| 10215 |
* // => [1, 2, 3] |
| 10216 |
* |
| 10217 |
* curried(1, 2, 3); |
| 10218 |
* // => [1, 2, 3] |
| 10219 |
* |
| 10220 |
* // Curried with placeholders. |
| 10221 |
* curried(1)(_, 3)(2); |
| 10222 |
* // => [1, 2, 3] |
| 10223 |
*/ |
| 10224 |
function curry(func, arity, guard) { |
| 10225 |
arity = guard ? undefined : arity; |
| 10226 |
var result = createWrap(func, WRAP_CURRY_FLAG, undefined, undefined, undefined, undefined, undefined, arity); |
| 10227 |
result.placeholder = curry.placeholder; |
| 10228 |
return result; |
| 10229 |
} |
| 10230 |
|
| 10231 |
/** |
| 10232 |
* This method is like `_.curry` except that arguments are applied to `func` |
| 10233 |
* in the manner of `_.partialRight` instead of `_.partial`. |
| 10234 |
* |
| 10235 |
* The `_.curryRight.placeholder` value, which defaults to `_` in monolithic |
| 10236 |
* builds, may be used as a placeholder for provided arguments. |
| 10237 |
* |
| 10238 |
* **Note:** This method doesn't set the "length" property of curried functions. |
| 10239 |
* |
| 10240 |
* @static |
| 10241 |
* @memberOf _ |
| 10242 |
* @since 3.0.0 |
| 10243 |
* @category Function |
| 10244 |
* @param {Function} func The function to curry. |
| 10245 |
* @param {number} [arity=func.length] The arity of `func`. |
| 10246 |
* @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. |
| 10247 |
* @returns {Function} Returns the new curried function. |
| 10248 |
* @example |
| 10249 |
* |
| 10250 |
* var abc = function(a, b, c) { |
| 10251 |
* return [a, b, c]; |
| 10252 |
* }; |
| 10253 |
* |
| 10254 |
* var curried = _.curryRight(abc); |
| 10255 |
* |
| 10256 |
* curried(3)(2)(1); |
| 10257 |
* // => [1, 2, 3] |
| 10258 |
* |
| 10259 |
* curried(2, 3)(1); |
| 10260 |
* // => [1, 2, 3] |
| 10261 |
* |
| 10262 |
* curried(1, 2, 3); |
| 10263 |
* // => [1, 2, 3] |
| 10264 |
* |
| 10265 |
* // Curried with placeholders. |
| 10266 |
* curried(3)(1, _)(2); |
| 10267 |
* // => [1, 2, 3] |
| 10268 |
*/ |
| 10269 |
function curryRight(func, arity, guard) { |
| 10270 |
arity = guard ? undefined : arity; |
| 10271 |
var result = createWrap(func, WRAP_CURRY_RIGHT_FLAG, undefined, undefined, undefined, undefined, undefined, arity); |
| 10272 |
result.placeholder = curryRight.placeholder; |
| 10273 |
return result; |
| 10274 |
} |
| 10275 |
|
| 10276 |
/** |
| 10277 |
* Creates a debounced function that delays invoking `func` until after `wait` |
| 10278 |
* milliseconds have elapsed since the last time the debounced function was |
| 10279 |
* invoked. The debounced function comes with a `cancel` method to cancel |
| 10280 |
* delayed `func` invocations and a `flush` method to immediately invoke them. |
| 10281 |
* Provide `options` to indicate whether `func` should be invoked on the |
| 10282 |
* leading and/or trailing edge of the `wait` timeout. The `func` is invoked |
| 10283 |
* with the last arguments provided to the debounced function. Subsequent |
| 10284 |
* calls to the debounced function return the result of the last `func` |
| 10285 |
* invocation. |
| 10286 |
* |
| 10287 |
* **Note:** If `leading` and `trailing` options are `true`, `func` is |
| 10288 |
* invoked on the trailing edge of the timeout only if the debounced function |
| 10289 |
* is invoked more than once during the `wait` timeout. |
| 10290 |
* |
| 10291 |
* If `wait` is `0` and `leading` is `false`, `func` invocation is deferred |
| 10292 |
* until to the next tick, similar to `setTimeout` with a timeout of `0`. |
| 10293 |
* |
| 10294 |
* See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/) |
| 10295 |
* for details over the differences between `_.debounce` and `_.throttle`. |
| 10296 |
* |
| 10297 |
* @static |
| 10298 |
* @memberOf _ |
| 10299 |
* @since 0.1.0 |
| 10300 |
* @category Function |
| 10301 |
* @param {Function} func The function to debounce. |
| 10302 |
* @param {number} [wait=0] The number of milliseconds to delay. |
| 10303 |
* @param {Object} [options={}] The options object. |
| 10304 |
* @param {boolean} [options.leading=false] |
| 10305 |
* Specify invoking on the leading edge of the timeout. |
| 10306 |
* @param {number} [options.maxWait] |
| 10307 |
* The maximum time `func` is allowed to be delayed before it's invoked. |
| 10308 |
* @param {boolean} [options.trailing=true] |
| 10309 |
* Specify invoking on the trailing edge of the timeout. |
| 10310 |
* @returns {Function} Returns the new debounced function. |
| 10311 |
* @example |
| 10312 |
* |
| 10313 |
* // Avoid costly calculations while the window size is in flux. |
| 10314 |
* jQuery(window).on('resize', _.debounce(calculateLayout, 150)); |
| 10315 |
* |
| 10316 |
* // Invoke `sendMail` when clicked, debouncing subsequent calls. |
| 10317 |
* jQuery(element).on('click', _.debounce(sendMail, 300, { |
| 10318 |
* 'leading': true, |
| 10319 |
* 'trailing': false |
| 10320 |
* })); |
| 10321 |
* |
| 10322 |
* // Ensure `batchLog` is invoked once after 1 second of debounced calls. |
| 10323 |
* var debounced = _.debounce(batchLog, 250, { 'maxWait': 1000 }); |
| 10324 |
* var source = new EventSource('/stream'); |
| 10325 |
* jQuery(source).on('message', debounced); |
| 10326 |
* |
| 10327 |
* // Cancel the trailing debounced invocation. |
| 10328 |
* jQuery(window).on('popstate', debounced.cancel); |
| 10329 |
*/ |
| 10330 |
function debounce(func, wait, options) { |
| 10331 |
var lastArgs, |
| 10332 |
lastThis, |
| 10333 |
maxWait, |
| 10334 |
result, |
| 10335 |
timerId, |
| 10336 |
lastCallTime, |
| 10337 |
lastInvokeTime = 0, |
| 10338 |
leading = false, |
| 10339 |
maxing = false, |
| 10340 |
trailing = true; |
| 10341 |
|
| 10342 |
if (typeof func != 'function') { |
| 10343 |
throw new TypeError(FUNC_ERROR_TEXT); |
| 10344 |
} |
| 10345 |
wait = toNumber(wait) || 0; |
| 10346 |
if (isObject(options)) { |
| 10347 |
leading = !!options.leading; |
| 10348 |
maxing = 'maxWait' in options; |
| 10349 |
maxWait = maxing ? nativeMax(toNumber(options.maxWait) || 0, wait) : maxWait; |
| 10350 |
trailing = 'trailing' in options ? !!options.trailing : trailing; |
| 10351 |
} |
| 10352 |
|
| 10353 |
function invokeFunc(time) { |
| 10354 |
var args = lastArgs, |
| 10355 |
thisArg = lastThis; |
| 10356 |
|
| 10357 |
lastArgs = lastThis = undefined; |
| 10358 |
lastInvokeTime = time; |
| 10359 |
result = func.apply(thisArg, args); |
| 10360 |
return result; |
| 10361 |
} |
| 10362 |
|
| 10363 |
function leadingEdge(time) { |
| 10364 |
// Reset any `maxWait` timer. |
| 10365 |
lastInvokeTime = time; |
| 10366 |
// Start the timer for the trailing edge. |
| 10367 |
timerId = setTimeout(timerExpired, wait); |
| 10368 |
// Invoke the leading edge. |
| 10369 |
return leading ? invokeFunc(time) : result; |
| 10370 |
} |
| 10371 |
|
| 10372 |
function remainingWait(time) { |
| 10373 |
var timeSinceLastCall = time - lastCallTime, |
| 10374 |
timeSinceLastInvoke = time - lastInvokeTime, |
| 10375 |
timeWaiting = wait - timeSinceLastCall; |
| 10376 |
|
| 10377 |
return maxing |
| 10378 |
? nativeMin(timeWaiting, maxWait - timeSinceLastInvoke) |
| 10379 |
: timeWaiting; |
| 10380 |
} |
| 10381 |
|
| 10382 |
function shouldInvoke(time) { |
| 10383 |
var timeSinceLastCall = time - lastCallTime, |
| 10384 |
timeSinceLastInvoke = time - lastInvokeTime; |
| 10385 |
|
| 10386 |
// Either this is the first call, activity has stopped and we're at the |
| 10387 |
// trailing edge, the system time has gone backwards and we're treating |
| 10388 |
// it as the trailing edge, or we've hit the `maxWait` limit. |
| 10389 |
return (lastCallTime === undefined || (timeSinceLastCall >= wait) || |
| 10390 |
(timeSinceLastCall < 0) || (maxing && timeSinceLastInvoke >= maxWait)); |
| 10391 |
} |
| 10392 |
|
| 10393 |
function timerExpired() { |
| 10394 |
var time = now(); |
| 10395 |
if (shouldInvoke(time)) { |
| 10396 |
return trailingEdge(time); |
| 10397 |
} |
| 10398 |
// Restart the timer. |
| 10399 |
timerId = setTimeout(timerExpired, remainingWait(time)); |
| 10400 |
} |
| 10401 |
|
| 10402 |
function trailingEdge(time) { |
| 10403 |
timerId = undefined; |
| 10404 |
|
| 10405 |
// Only invoke if we have `lastArgs` which means `func` has been |
| 10406 |
// debounced at least once. |
| 10407 |
if (trailing && lastArgs) { |
| 10408 |
return invokeFunc(time); |
| 10409 |
} |
| 10410 |
lastArgs = lastThis = undefined; |
| 10411 |
return result; |
| 10412 |
} |
| 10413 |
|
| 10414 |
function cancel() { |
| 10415 |
if (timerId !== undefined) { |
| 10416 |
clearTimeout(timerId); |
| 10417 |
} |
| 10418 |
lastInvokeTime = 0; |
| 10419 |
lastArgs = lastCallTime = lastThis = timerId = undefined; |
| 10420 |
} |
| 10421 |
|
| 10422 |
function flush() { |
| 10423 |
return timerId === undefined ? result : trailingEdge(now()); |
| 10424 |
} |
| 10425 |
|
| 10426 |
function debounced() { |
| 10427 |
var time = now(), |
| 10428 |
isInvoking = shouldInvoke(time); |
| 10429 |
|
| 10430 |
lastArgs = arguments; |
| 10431 |
lastThis = this; |
| 10432 |
lastCallTime = time; |
| 10433 |
|
| 10434 |
if (isInvoking) { |
| 10435 |
if (timerId === undefined) { |
| 10436 |
return leadingEdge(lastCallTime); |
| 10437 |
} |
| 10438 |
if (maxing) { |
| 10439 |
// Handle invocations in a tight loop. |
| 10440 |
clearTimeout(timerId); |
| 10441 |
timerId = setTimeout(timerExpired, wait); |
| 10442 |
return invokeFunc(lastCallTime); |
| 10443 |
} |
| 10444 |
} |
| 10445 |
if (timerId === undefined) { |
| 10446 |
timerId = setTimeout(timerExpired, wait); |
| 10447 |
} |
| 10448 |
return result; |
| 10449 |
} |
| 10450 |
debounced.cancel = cancel; |
| 10451 |
debounced.flush = flush; |
| 10452 |
return debounced; |
| 10453 |
} |
| 10454 |
|
| 10455 |
/** |
| 10456 |
* Defers invoking the `func` until the current call stack has cleared. Any |
| 10457 |
* additional arguments are provided to `func` when it's invoked. |
| 10458 |
* |
| 10459 |
* @static |
| 10460 |
* @memberOf _ |
| 10461 |
* @since 0.1.0 |
| 10462 |
* @category Function |
| 10463 |
* @param {Function} func The function to defer. |
| 10464 |
* @param {...*} [args] The arguments to invoke `func` with. |
| 10465 |
* @returns {number} Returns the timer id. |
| 10466 |
* @example |
| 10467 |
* |
| 10468 |
* _.defer(function(text) { |
| 10469 |
* console.log(text); |
| 10470 |
* }, 'deferred'); |
| 10471 |
* // => Logs 'deferred' after one millisecond. |
| 10472 |
*/ |
| 10473 |
var defer = baseRest(function(func, args) { |
| 10474 |
return baseDelay(func, 1, args); |
| 10475 |
}); |
| 10476 |
|
| 10477 |
/** |
| 10478 |
* Invokes `func` after `wait` milliseconds. Any additional arguments are |
| 10479 |
* provided to `func` when it's invoked. |
| 10480 |
* |
| 10481 |
* @static |
| 10482 |
* @memberOf _ |
| 10483 |
* @since 0.1.0 |
| 10484 |
* @category Function |
| 10485 |
* @param {Function} func The function to delay. |
| 10486 |
* @param {number} wait The number of milliseconds to delay invocation. |
| 10487 |
* @param {...*} [args] The arguments to invoke `func` with. |
| 10488 |
* @returns {number} Returns the timer id. |
| 10489 |
* @example |
| 10490 |
* |
| 10491 |
* _.delay(function(text) { |
| 10492 |
* console.log(text); |
| 10493 |
* }, 1000, 'later'); |
| 10494 |
* // => Logs 'later' after one second. |
| 10495 |
*/ |
| 10496 |
var delay = baseRest(function(func, wait, args) { |
| 10497 |
return baseDelay(func, toNumber(wait) || 0, args); |
| 10498 |
}); |
| 10499 |
|
| 10500 |
/** |
| 10501 |
* Creates a function that invokes `func` with arguments reversed. |
| 10502 |
* |
| 10503 |
* @static |
| 10504 |
* @memberOf _ |
| 10505 |
* @since 4.0.0 |
| 10506 |
* @category Function |
| 10507 |
* @param {Function} func The function to flip arguments for. |
| 10508 |
* @returns {Function} Returns the new flipped function. |
| 10509 |
* @example |
| 10510 |
* |
| 10511 |
* var flipped = _.flip(function() { |
| 10512 |
* return _.toArray(arguments); |
| 10513 |
* }); |
| 10514 |
* |
| 10515 |
* flipped('a', 'b', 'c', 'd'); |
| 10516 |
* // => ['d', 'c', 'b', 'a'] |
| 10517 |
*/ |
| 10518 |
function flip(func) { |
| 10519 |
return createWrap(func, WRAP_FLIP_FLAG); |
| 10520 |
} |
| 10521 |
|
| 10522 |
/** |
| 10523 |
* Creates a function that memoizes the result of `func`. If `resolver` is |
| 10524 |
* provided, it determines the cache key for storing the result based on the |
| 10525 |
* arguments provided to the memoized function. By default, the first argument |
| 10526 |
* provided to the memoized function is used as the map cache key. The `func` |
| 10527 |
* is invoked with the `this` binding of the memoized function. |
| 10528 |
* |
| 10529 |
* **Note:** The cache is exposed as the `cache` property on the memoized |
| 10530 |
* function. Its creation may be customized by replacing the `_.memoize.Cache` |
| 10531 |
* constructor with one whose instances implement the |
| 10532 |
* [`Map`](http://ecma-international.org/ecma-262/7.0/#sec-properties-of-the-map-prototype-object) |
| 10533 |
* method interface of `clear`, `delete`, `get`, `has`, and `set`. |
| 10534 |
* |
| 10535 |
* @static |
| 10536 |
* @memberOf _ |
| 10537 |
* @since 0.1.0 |
| 10538 |
* @category Function |
| 10539 |
* @param {Function} func The function to have its output memoized. |
| 10540 |
* @param {Function} [resolver] The function to resolve the cache key. |
| 10541 |
* @returns {Function} Returns the new memoized function. |
| 10542 |
* @example |
| 10543 |
* |
| 10544 |
* var object = { 'a': 1, 'b': 2 }; |
| 10545 |
* var other = { 'c': 3, 'd': 4 }; |
| 10546 |
* |
| 10547 |
* var values = _.memoize(_.values); |
| 10548 |
* values(object); |
| 10549 |
* // => [1, 2] |
| 10550 |
* |
| 10551 |
* values(other); |
| 10552 |
* // => [3, 4] |
| 10553 |
* |
| 10554 |
* object.a = 2; |
| 10555 |
* values(object); |
| 10556 |
* // => [1, 2] |
| 10557 |
* |
| 10558 |
* // Modify the result cache. |
| 10559 |
* values.cache.set(object, ['a', 'b']); |
| 10560 |
* values(object); |
| 10561 |
* // => ['a', 'b'] |
| 10562 |
* |
| 10563 |
* // Replace `_.memoize.Cache`. |
| 10564 |
* _.memoize.Cache = WeakMap; |
| 10565 |
*/ |
| 10566 |
function memoize(func, resolver) { |
| 10567 |
if (typeof func != 'function' || (resolver != null && typeof resolver != 'function')) { |
| 10568 |
throw new TypeError(FUNC_ERROR_TEXT); |
| 10569 |
} |
| 10570 |
var memoized = function() { |
| 10571 |
var args = arguments, |
| 10572 |
key = resolver ? resolver.apply(this, args) : args[0], |
| 10573 |
cache = memoized.cache; |
| 10574 |
|
| 10575 |
if (cache.has(key)) { |
| 10576 |
return cache.get(key); |
| 10577 |
} |
| 10578 |
var result = func.apply(this, args); |
| 10579 |
memoized.cache = cache.set(key, result) || cache; |
| 10580 |
return result; |
| 10581 |
}; |
| 10582 |
memoized.cache = new (memoize.Cache || MapCache); |
| 10583 |
return memoized; |
| 10584 |
} |
| 10585 |
|
| 10586 |
// Expose `MapCache`. |
| 10587 |
memoize.Cache = MapCache; |
| 10588 |
|
| 10589 |
/** |
| 10590 |
* Creates a function that negates the result of the predicate `func`. The |
| 10591 |
* `func` predicate is invoked with the `this` binding and arguments of the |
| 10592 |
* created function. |
| 10593 |
* |
| 10594 |
* @static |
| 10595 |
* @memberOf _ |
| 10596 |
* @since 3.0.0 |
| 10597 |
* @category Function |
| 10598 |
* @param {Function} predicate The predicate to negate. |
| 10599 |
* @returns {Function} Returns the new negated function. |
| 10600 |
* @example |
| 10601 |
* |
| 10602 |
* function isEven(n) { |
| 10603 |
* return n % 2 == 0; |
| 10604 |
* } |
| 10605 |
* |
| 10606 |
* _.filter([1, 2, 3, 4, 5, 6], _.negate(isEven)); |
| 10607 |
* // => [1, 3, 5] |
| 10608 |
*/ |
| 10609 |
function negate(predicate) { |
| 10610 |
if (typeof predicate != 'function') { |
| 10611 |
throw new TypeError(FUNC_ERROR_TEXT); |
| 10612 |
} |
| 10613 |
return function() { |
| 10614 |
var args = arguments; |
| 10615 |
switch (args.length) { |
| 10616 |
case 0: return !predicate.call(this); |
| 10617 |
case 1: return !predicate.call(this, args[0]); |
| 10618 |
case 2: return !predicate.call(this, args[0], args[1]); |
| 10619 |
case 3: return !predicate.call(this, args[0], args[1], args[2]); |
| 10620 |
} |
| 10621 |
return !predicate.apply(this, args); |
| 10622 |
}; |
| 10623 |
} |
| 10624 |
|
| 10625 |
/** |
| 10626 |
* Creates a function that is restricted to invoking `func` once. Repeat calls |
| 10627 |
* to the function return the value of the first invocation. The `func` is |
| 10628 |
* invoked with the `this` binding and arguments of the created function. |
| 10629 |
* |
| 10630 |
* @static |
| 10631 |
* @memberOf _ |
| 10632 |
* @since 0.1.0 |
| 10633 |
* @category Function |
| 10634 |
* @param {Function} func The function to restrict. |
| 10635 |
* @returns {Function} Returns the new restricted function. |
| 10636 |
* @example |
| 10637 |
* |
| 10638 |
* var initialize = _.once(createApplication); |
| 10639 |
* initialize(); |
| 10640 |
* initialize(); |
| 10641 |
* // => `createApplication` is invoked once |
| 10642 |
*/ |
| 10643 |
function once(func) { |
| 10644 |
return before(2, func); |
| 10645 |
} |
| 10646 |
|
| 10647 |
/** |
| 10648 |
* Creates a function that invokes `func` with its arguments transformed. |
| 10649 |
* |
| 10650 |
* @static |
| 10651 |
* @since 4.0.0 |
| 10652 |
* @memberOf _ |
| 10653 |
* @category Function |
| 10654 |
* @param {Function} func The function to wrap. |
| 10655 |
* @param {...(Function|Function[])} [transforms=[_.identity]] |
| 10656 |
* The argument transforms. |
| 10657 |
* @returns {Function} Returns the new function. |
| 10658 |
* @example |
| 10659 |
* |
| 10660 |
* function doubled(n) { |
| 10661 |
* return n * 2; |
| 10662 |
* } |
| 10663 |
* |
| 10664 |
* function square(n) { |
| 10665 |
* return n * n; |
| 10666 |
* } |
| 10667 |
* |
| 10668 |
* var func = _.overArgs(function(x, y) { |
| 10669 |
* return [x, y]; |
| 10670 |
* }, [square, doubled]); |
| 10671 |
* |
| 10672 |
* func(9, 3); |
| 10673 |
* // => [81, 6] |
| 10674 |
* |
| 10675 |
* func(10, 5); |
| 10676 |
* // => [100, 10] |
| 10677 |
*/ |
| 10678 |
var overArgs = castRest(function(func, transforms) { |
| 10679 |
transforms = (transforms.length == 1 && isArray(transforms[0])) |
| 10680 |
? arrayMap(transforms[0], baseUnary(getIteratee())) |
| 10681 |
: arrayMap(baseFlatten(transforms, 1), baseUnary(getIteratee())); |
| 10682 |
|
| 10683 |
var funcsLength = transforms.length; |
| 10684 |
return baseRest(function(args) { |
| 10685 |
var index = -1, |
| 10686 |
length = nativeMin(args.length, funcsLength); |
| 10687 |
|
| 10688 |
while (++index < length) { |
| 10689 |
args[index] = transforms[index].call(this, args[index]); |
| 10690 |
} |
| 10691 |
return apply(func, this, args); |
| 10692 |
}); |
| 10693 |
}); |
| 10694 |
|
| 10695 |
/** |
| 10696 |
* Creates a function that invokes `func` with `partials` prepended to the |
| 10697 |
* arguments it receives. This method is like `_.bind` except it does **not** |
| 10698 |
* alter the `this` binding. |
| 10699 |
* |
| 10700 |
* The `_.partial.placeholder` value, which defaults to `_` in monolithic |
| 10701 |
* builds, may be used as a placeholder for partially applied arguments. |
| 10702 |
* |
| 10703 |
* **Note:** This method doesn't set the "length" property of partially |
| 10704 |
* applied functions. |
| 10705 |
* |
| 10706 |
* @static |
| 10707 |
* @memberOf _ |
| 10708 |
* @since 0.2.0 |
| 10709 |
* @category Function |
| 10710 |
* @param {Function} func The function to partially apply arguments to. |
| 10711 |
* @param {...*} [partials] The arguments to be partially applied. |
| 10712 |
* @returns {Function} Returns the new partially applied function. |
| 10713 |
* @example |
| 10714 |
* |
| 10715 |
* function greet(greeting, name) { |
| 10716 |
* return greeting + ' ' + name; |
| 10717 |
* } |
| 10718 |
* |
| 10719 |
* var sayHelloTo = _.partial(greet, 'hello'); |
| 10720 |
* sayHelloTo('fred'); |
| 10721 |
* // => 'hello fred' |
| 10722 |
* |
| 10723 |
* // Partially applied with placeholders. |
| 10724 |
* var greetFred = _.partial(greet, _, 'fred'); |
| 10725 |
* greetFred('hi'); |
| 10726 |
* // => 'hi fred' |
| 10727 |
*/ |
| 10728 |
var partial = baseRest(function(func, partials) { |
| 10729 |
var holders = replaceHolders(partials, getHolder(partial)); |
| 10730 |
return createWrap(func, WRAP_PARTIAL_FLAG, undefined, partials, holders); |
| 10731 |
}); |
| 10732 |
|
| 10733 |
/** |
| 10734 |
* This method is like `_.partial` except that partially applied arguments |
| 10735 |
* are appended to the arguments it receives. |
| 10736 |
* |
| 10737 |
* The `_.partialRight.placeholder` value, which defaults to `_` in monolithic |
| 10738 |
* builds, may be used as a placeholder for partially applied arguments. |
| 10739 |
* |
| 10740 |
* **Note:** This method doesn't set the "length" property of partially |
| 10741 |
* applied functions. |
| 10742 |
* |
| 10743 |
* @static |
| 10744 |
* @memberOf _ |
| 10745 |
* @since 1.0.0 |
| 10746 |
* @category Function |
| 10747 |
* @param {Function} func The function to partially apply arguments to. |
| 10748 |
* @param {...*} [partials] The arguments to be partially applied. |
| 10749 |
* @returns {Function} Returns the new partially applied function. |
| 10750 |
* @example |
| 10751 |
* |
| 10752 |
* function greet(greeting, name) { |
| 10753 |
* return greeting + ' ' + name; |
| 10754 |
* } |
| 10755 |
* |
| 10756 |
* var greetFred = _.partialRight(greet, 'fred'); |
| 10757 |
* greetFred('hi'); |
| 10758 |
* // => 'hi fred' |
| 10759 |
* |
| 10760 |
* // Partially applied with placeholders. |
| 10761 |
* var sayHelloTo = _.partialRight(greet, 'hello', _); |
| 10762 |
* sayHelloTo('fred'); |
| 10763 |
* // => 'hello fred' |
| 10764 |
*/ |
| 10765 |
var partialRight = baseRest(function(func, partials) { |
| 10766 |
var holders = replaceHolders(partials, getHolder(partialRight)); |
| 10767 |
return createWrap(func, WRAP_PARTIAL_RIGHT_FLAG, undefined, partials, holders); |
| 10768 |
}); |
| 10769 |
|
| 10770 |
/** |
| 10771 |
* Creates a function that invokes `func` with arguments arranged according |
| 10772 |
* to the specified `indexes` where the argument value at the first index is |
| 10773 |
* provided as the first argument, the argument value at the second index is |
| 10774 |
* provided as the second argument, and so on. |
| 10775 |
* |
| 10776 |
* @static |
| 10777 |
* @memberOf _ |
| 10778 |
* @since 3.0.0 |
| 10779 |
* @category Function |
| 10780 |
* @param {Function} func The function to rearrange arguments for. |
| 10781 |
* @param {...(number|number[])} indexes The arranged argument indexes. |
| 10782 |
* @returns {Function} Returns the new function. |
| 10783 |
* @example |
| 10784 |
* |
| 10785 |
* var rearged = _.rearg(function(a, b, c) { |
| 10786 |
* return [a, b, c]; |
| 10787 |
* }, [2, 0, 1]); |
| 10788 |
* |
| 10789 |
* rearged('b', 'c', 'a') |
| 10790 |
* // => ['a', 'b', 'c'] |
| 10791 |
*/ |
| 10792 |
var rearg = flatRest(function(func, indexes) { |
| 10793 |
return createWrap(func, WRAP_REARG_FLAG, undefined, undefined, undefined, indexes); |
| 10794 |
}); |
| 10795 |
|
| 10796 |
/** |
| 10797 |
* Creates a function that invokes `func` with the `this` binding of the |
| 10798 |
* created function and arguments from `start` and beyond provided as |
| 10799 |
* an array. |
| 10800 |
* |
| 10801 |
* **Note:** This method is based on the |
| 10802 |
* [rest parameter](https://mdn.io/rest_parameters). |
| 10803 |
* |
| 10804 |
* @static |
| 10805 |
* @memberOf _ |
| 10806 |
* @since 4.0.0 |
| 10807 |
* @category Function |
| 10808 |
* @param {Function} func The function to apply a rest parameter to. |
| 10809 |
* @param {number} [start=func.length-1] The start position of the rest parameter. |
| 10810 |
* @returns {Function} Returns the new function. |
| 10811 |
* @example |
| 10812 |
* |
| 10813 |
* var say = _.rest(function(what, names) { |
| 10814 |
* return what + ' ' + _.initial(names).join(', ') + |
| 10815 |
* (_.size(names) > 1 ? ', & ' : '') + _.last(names); |
| 10816 |
* }); |
| 10817 |
* |
| 10818 |
* say('hello', 'fred', 'barney', 'pebbles'); |
| 10819 |
* // => 'hello fred, barney, & pebbles' |
| 10820 |
*/ |
| 10821 |
function rest(func, start) { |
| 10822 |
if (typeof func != 'function') { |
| 10823 |
throw new TypeError(FUNC_ERROR_TEXT); |
| 10824 |
} |
| 10825 |
start = start === undefined ? start : toInteger(start); |
| 10826 |
return baseRest(func, start); |
| 10827 |
} |
| 10828 |
|
| 10829 |
/** |
| 10830 |
* Creates a function that invokes `func` with the `this` binding of the |
| 10831 |
* create function and an array of arguments much like |
| 10832 |
* [`Function#apply`](http://www.ecma-international.org/ecma-262/7.0/#sec-function.prototype.apply). |
| 10833 |
* |
| 10834 |
* **Note:** This method is based on the |
| 10835 |
* [spread operator](https://mdn.io/spread_operator). |
| 10836 |
* |
| 10837 |
* @static |
| 10838 |
* @memberOf _ |
| 10839 |
* @since 3.2.0 |
| 10840 |
* @category Function |
| 10841 |
* @param {Function} func The function to spread arguments over. |
| 10842 |
* @param {number} [start=0] The start position of the spread. |
| 10843 |
* @returns {Function} Returns the new function. |
| 10844 |
* @example |
| 10845 |
* |
| 10846 |
* var say = _.spread(function(who, what) { |
| 10847 |
* return who + ' says ' + what; |
| 10848 |
* }); |
| 10849 |
* |
| 10850 |
* say(['fred', 'hello']); |
| 10851 |
* // => 'fred says hello' |
| 10852 |
* |
| 10853 |
* var numbers = Promise.all([ |
| 10854 |
* Promise.resolve(40), |
| 10855 |
* Promise.resolve(36) |
| 10856 |
* ]); |
| 10857 |
* |
| 10858 |
* numbers.then(_.spread(function(x, y) { |
| 10859 |
* return x + y; |
| 10860 |
* })); |
| 10861 |
* // => a Promise of 76 |
| 10862 |
*/ |
| 10863 |
function spread(func, start) { |
| 10864 |
if (typeof func != 'function') { |
| 10865 |
throw new TypeError(FUNC_ERROR_TEXT); |
| 10866 |
} |
| 10867 |
start = start == null ? 0 : nativeMax(toInteger(start), 0); |
| 10868 |
return baseRest(function(args) { |
| 10869 |
var array = args[start], |
| 10870 |
otherArgs = castSlice(args, 0, start); |
| 10871 |
|
| 10872 |
if (array) { |
| 10873 |
arrayPush(otherArgs, array); |
| 10874 |
} |
| 10875 |
return apply(func, this, otherArgs); |
| 10876 |
}); |
| 10877 |
} |
| 10878 |
|
| 10879 |
/** |
| 10880 |
* Creates a throttled function that only invokes `func` at most once per |
| 10881 |
* every `wait` milliseconds. The throttled function comes with a `cancel` |
| 10882 |
* method to cancel delayed `func` invocations and a `flush` method to |
| 10883 |
* immediately invoke them. Provide `options` to indicate whether `func` |
| 10884 |
* should be invoked on the leading and/or trailing edge of the `wait` |
| 10885 |
* timeout. The `func` is invoked with the last arguments provided to the |
| 10886 |
* throttled function. Subsequent calls to the throttled function return the |
| 10887 |
* result of the last `func` invocation. |
| 10888 |
* |
| 10889 |
* **Note:** If `leading` and `trailing` options are `true`, `func` is |
| 10890 |
* invoked on the trailing edge of the timeout only if the throttled function |
| 10891 |
* is invoked more than once during the `wait` timeout. |
| 10892 |
* |
| 10893 |
* If `wait` is `0` and `leading` is `false`, `func` invocation is deferred |
| 10894 |
* until to the next tick, similar to `setTimeout` with a timeout of `0`. |
| 10895 |
* |
| 10896 |
* See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/) |
| 10897 |
* for details over the differences between `_.throttle` and `_.debounce`. |
| 10898 |
* |
| 10899 |
* @static |
| 10900 |
* @memberOf _ |
| 10901 |
* @since 0.1.0 |
| 10902 |
* @category Function |
| 10903 |
* @param {Function} func The function to throttle. |
| 10904 |
* @param {number} [wait=0] The number of milliseconds to throttle invocations to. |
| 10905 |
* @param {Object} [options={}] The options object. |
| 10906 |
* @param {boolean} [options.leading=true] |
| 10907 |
* Specify invoking on the leading edge of the timeout. |
| 10908 |
* @param {boolean} [options.trailing=true] |
| 10909 |
* Specify invoking on the trailing edge of the timeout. |
| 10910 |
* @returns {Function} Returns the new throttled function. |
| 10911 |
* @example |
| 10912 |
* |
| 10913 |
* // Avoid excessively updating the position while scrolling. |
| 10914 |
* jQuery(window).on('scroll', _.throttle(updatePosition, 100)); |
| 10915 |
* |
| 10916 |
* // Invoke `renewToken` when the click event is fired, but not more than once every 5 minutes. |
| 10917 |
* var throttled = _.throttle(renewToken, 300000, { 'trailing': false }); |
| 10918 |
* jQuery(element).on('click', throttled); |
| 10919 |
* |
| 10920 |
* // Cancel the trailing throttled invocation. |
| 10921 |
* jQuery(window).on('popstate', throttled.cancel); |
| 10922 |
*/ |
| 10923 |
function throttle(func, wait, options) { |
| 10924 |
var leading = true, |
| 10925 |
trailing = true; |
| 10926 |
|
| 10927 |
if (typeof func != 'function') { |
| 10928 |
throw new TypeError(FUNC_ERROR_TEXT); |
| 10929 |
} |
| 10930 |
if (isObject(options)) { |
| 10931 |
leading = 'leading' in options ? !!options.leading : leading; |
| 10932 |
trailing = 'trailing' in options ? !!options.trailing : trailing; |
| 10933 |
} |
| 10934 |
return debounce(func, wait, { |
| 10935 |
'leading': leading, |
| 10936 |
'maxWait': wait, |
| 10937 |
'trailing': trailing |
| 10938 |
}); |
| 10939 |
} |
| 10940 |
|
| 10941 |
/** |
| 10942 |
* Creates a function that accepts up to one argument, ignoring any |
| 10943 |
* additional arguments. |
| 10944 |
* |
| 10945 |
* @static |
| 10946 |
* @memberOf _ |
| 10947 |
* @since 4.0.0 |
| 10948 |
* @category Function |
| 10949 |
* @param {Function} func The function to cap arguments for. |
| 10950 |
* @returns {Function} Returns the new capped function. |
| 10951 |
* @example |
| 10952 |
* |
| 10953 |
* _.map(['6', '8', '10'], _.unary(parseInt)); |
| 10954 |
* // => [6, 8, 10] |
| 10955 |
*/ |
| 10956 |
function unary(func) { |
| 10957 |
return ary(func, 1); |
| 10958 |
} |
| 10959 |
|
| 10960 |
/** |
| 10961 |
* Creates a function that provides `value` to `wrapper` as its first |
| 10962 |
* argument. Any additional arguments provided to the function are appended |
| 10963 |
* to those provided to the `wrapper`. The wrapper is invoked with the `this` |
| 10964 |
* binding of the created function. |
| 10965 |
* |
| 10966 |
* @static |
| 10967 |
* @memberOf _ |
| 10968 |
* @since 0.1.0 |
| 10969 |
* @category Function |
| 10970 |
* @param {*} value The value to wrap. |
| 10971 |
* @param {Function} [wrapper=identity] The wrapper function. |
| 10972 |
* @returns {Function} Returns the new function. |
| 10973 |
* @example |
| 10974 |
* |
| 10975 |
* var p = _.wrap(_.escape, function(func, text) { |
| 10976 |
* return '<p>' + func(text) + '</p>'; |
| 10977 |
* }); |
| 10978 |
* |
| 10979 |
* p('fred, barney, & pebbles'); |
| 10980 |
* // => '<p>fred, barney, & pebbles</p>' |
| 10981 |
*/ |
| 10982 |
function wrap(value, wrapper) { |
| 10983 |
return partial(castFunction(wrapper), value); |
| 10984 |
} |
| 10985 |
|
| 10986 |
/*------------------------------------------------------------------------*/ |
| 10987 |
|
| 10988 |
/** |
| 10989 |
* Casts `value` as an array if it's not one. |
| 10990 |
* |
| 10991 |
* @static |
| 10992 |
* @memberOf _ |
| 10993 |
* @since 4.4.0 |
| 10994 |
* @category Lang |
| 10995 |
* @param {*} value The value to inspect. |
| 10996 |
* @returns {Array} Returns the cast array. |
| 10997 |
* @example |
| 10998 |
* |
| 10999 |
* _.castArray(1); |
| 11000 |
* // => [1] |
| 11001 |
* |
| 11002 |
* _.castArray({ 'a': 1 }); |
| 11003 |
* // => [{ 'a': 1 }] |
| 11004 |
* |
| 11005 |
* _.castArray('abc'); |
| 11006 |
* // => ['abc'] |
| 11007 |
* |
| 11008 |
* _.castArray(null); |
| 11009 |
* // => [null] |
| 11010 |
* |
| 11011 |
* _.castArray(undefined); |
| 11012 |
* // => [undefined] |
| 11013 |
* |
| 11014 |
* _.castArray(); |
| 11015 |
* // => [] |
| 11016 |
* |
| 11017 |
* var array = [1, 2, 3]; |
| 11018 |
* console.log(_.castArray(array) === array); |
| 11019 |
* // => true |
| 11020 |
*/ |
| 11021 |
function castArray() { |
| 11022 |
if (!arguments.length) { |
| 11023 |
return []; |
| 11024 |
} |
| 11025 |
var value = arguments[0]; |
| 11026 |
return isArray(value) ? value : [value]; |
| 11027 |
} |
| 11028 |
|
| 11029 |
/** |
| 11030 |
* Creates a shallow clone of `value`. |
| 11031 |
* |
| 11032 |
* **Note:** This method is loosely based on the |
| 11033 |
* [structured clone algorithm](https://mdn.io/Structured_clone_algorithm) |
| 11034 |
* and supports cloning arrays, array buffers, booleans, date objects, maps, |
| 11035 |
* numbers, `Object` objects, regexes, sets, strings, symbols, and typed |
| 11036 |
* arrays. The own enumerable properties of `arguments` objects are cloned |
| 11037 |
* as plain objects. An empty object is returned for uncloneable values such |
| 11038 |
* as error objects, functions, DOM nodes, and WeakMaps. |
| 11039 |
* |
| 11040 |
* @static |
| 11041 |
* @memberOf _ |
| 11042 |
* @since 0.1.0 |
| 11043 |
* @category Lang |
| 11044 |
* @param {*} value The value to clone. |
| 11045 |
* @returns {*} Returns the cloned value. |
| 11046 |
* @see _.cloneDeep |
| 11047 |
* @example |
| 11048 |
* |
| 11049 |
* var objects = [{ 'a': 1 }, { 'b': 2 }]; |
| 11050 |
* |
| 11051 |
* var shallow = _.clone(objects); |
| 11052 |
* console.log(shallow[0] === objects[0]); |
| 11053 |
* // => true |
| 11054 |
*/ |
| 11055 |
function clone(value) { |
| 11056 |
return baseClone(value, CLONE_SYMBOLS_FLAG); |
| 11057 |
} |
| 11058 |
|
| 11059 |
/** |
| 11060 |
* This method is like `_.clone` except that it accepts `customizer` which |
| 11061 |
* is invoked to produce the cloned value. If `customizer` returns `undefined`, |
| 11062 |
* cloning is handled by the method instead. The `customizer` is invoked with |
| 11063 |
* up to four arguments; (value [, index|key, object, stack]). |
| 11064 |
* |
| 11065 |
* @static |
| 11066 |
* @memberOf _ |
| 11067 |
* @since 4.0.0 |
| 11068 |
* @category Lang |
| 11069 |
* @param {*} value The value to clone. |
| 11070 |
* @param {Function} [customizer] The function to customize cloning. |
| 11071 |
* @returns {*} Returns the cloned value. |
| 11072 |
* @see _.cloneDeepWith |
| 11073 |
* @example |
| 11074 |
* |
| 11075 |
* function customizer(value) { |
| 11076 |
* if (_.isElement(value)) { |
| 11077 |
* return value.cloneNode(false); |
| 11078 |
* } |
| 11079 |
* } |
| 11080 |
* |
| 11081 |
* var el = _.cloneWith(document.body, customizer); |
| 11082 |
* |
| 11083 |
* console.log(el === document.body); |
| 11084 |
* // => false |
| 11085 |
* console.log(el.nodeName); |
| 11086 |
* // => 'BODY' |
| 11087 |
* console.log(el.childNodes.length); |
| 11088 |
* // => 0 |
| 11089 |
*/ |
| 11090 |
function cloneWith(value, customizer) { |
| 11091 |
customizer = typeof customizer == 'function' ? customizer : undefined; |
| 11092 |
return baseClone(value, CLONE_SYMBOLS_FLAG, customizer); |
| 11093 |
} |
| 11094 |
|
| 11095 |
/** |
| 11096 |
* This method is like `_.clone` except that it recursively clones `value`. |
| 11097 |
* |
| 11098 |
* @static |
| 11099 |
* @memberOf _ |
| 11100 |
* @since 1.0.0 |
| 11101 |
* @category Lang |
| 11102 |
* @param {*} value The value to recursively clone. |
| 11103 |
* @returns {*} Returns the deep cloned value. |
| 11104 |
* @see _.clone |
| 11105 |
* @example |
| 11106 |
* |
| 11107 |
* var objects = [{ 'a': 1 }, { 'b': 2 }]; |
| 11108 |
* |
| 11109 |
* var deep = _.cloneDeep(objects); |
| 11110 |
* console.log(deep[0] === objects[0]); |
| 11111 |
* // => false |
| 11112 |
*/ |
| 11113 |
function cloneDeep(value) { |
| 11114 |
return baseClone(value, CLONE_DEEP_FLAG | CLONE_SYMBOLS_FLAG); |
| 11115 |
} |
| 11116 |
|
| 11117 |
/** |
| 11118 |
* This method is like `_.cloneWith` except that it recursively clones `value`. |
| 11119 |
* |
| 11120 |
* @static |
| 11121 |
* @memberOf _ |
| 11122 |
* @since 4.0.0 |
| 11123 |
* @category Lang |
| 11124 |
* @param {*} value The value to recursively clone. |
| 11125 |
* @param {Function} [customizer] The function to customize cloning. |
| 11126 |
* @returns {*} Returns the deep cloned value. |
| 11127 |
* @see _.cloneWith |
| 11128 |
* @example |
| 11129 |
* |
| 11130 |
* function customizer(value) { |
| 11131 |
* if (_.isElement(value)) { |
| 11132 |
* return value.cloneNode(true); |
| 11133 |
* } |
| 11134 |
* } |
| 11135 |
* |
| 11136 |
* var el = _.cloneDeepWith(document.body, customizer); |
| 11137 |
* |
| 11138 |
* console.log(el === document.body); |
| 11139 |
* // => false |
| 11140 |
* console.log(el.nodeName); |
| 11141 |
* // => 'BODY' |
| 11142 |
* console.log(el.childNodes.length); |
| 11143 |
* // => 20 |
| 11144 |
*/ |
| 11145 |
function cloneDeepWith(value, customizer) { |
| 11146 |
customizer = typeof customizer == 'function' ? customizer : undefined; |
| 11147 |
return baseClone(value, CLONE_DEEP_FLAG | CLONE_SYMBOLS_FLAG, customizer); |
| 11148 |
} |
| 11149 |
|
| 11150 |
/** |
| 11151 |
* Checks if `object` conforms to `source` by invoking the predicate |
| 11152 |
* properties of `source` with the corresponding property values of `object`. |
| 11153 |
* |
| 11154 |
* **Note:** This method is equivalent to `_.conforms` when `source` is |
| 11155 |
* partially applied. |
| 11156 |
* |
| 11157 |
* @static |
| 11158 |
* @memberOf _ |
| 11159 |
* @since 4.14.0 |
| 11160 |
* @category Lang |
| 11161 |
* @param {Object} object The object to inspect. |
| 11162 |
* @param {Object} source The object of property predicates to conform to. |
| 11163 |
* @returns {boolean} Returns `true` if `object` conforms, else `false`. |
| 11164 |
* @example |
| 11165 |
* |
| 11166 |
* var object = { 'a': 1, 'b': 2 }; |
| 11167 |
* |
| 11168 |
* _.conformsTo(object, { 'b': function(n) { return n > 1; } }); |
| 11169 |
* // => true |
| 11170 |
* |
| 11171 |
* _.conformsTo(object, { 'b': function(n) { return n > 2; } }); |
| 11172 |
* // => false |
| 11173 |
*/ |
| 11174 |
function conformsTo(object, source) { |
| 11175 |
return source == null || baseConformsTo(object, source, keys(source)); |
| 11176 |
} |
| 11177 |
|
| 11178 |
/** |
| 11179 |
* Performs a |
| 11180 |
* [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) |
| 11181 |
* comparison between two values to determine if they are equivalent. |
| 11182 |
* |
| 11183 |
* @static |
| 11184 |
* @memberOf _ |
| 11185 |
* @since 4.0.0 |
| 11186 |
* @category Lang |
| 11187 |
* @param {*} value The value to compare. |
| 11188 |
* @param {*} other The other value to compare. |
| 11189 |
* @returns {boolean} Returns `true` if the values are equivalent, else `false`. |
| 11190 |
* @example |
| 11191 |
* |
| 11192 |
* var object = { 'a': 1 }; |
| 11193 |
* var other = { 'a': 1 }; |
| 11194 |
* |
| 11195 |
* _.eq(object, object); |
| 11196 |
* // => true |
| 11197 |
* |
| 11198 |
* _.eq(object, other); |
| 11199 |
* // => false |
| 11200 |
* |
| 11201 |
* _.eq('a', 'a'); |
| 11202 |
* // => true |
| 11203 |
* |
| 11204 |
* _.eq('a', Object('a')); |
| 11205 |
* // => false |
| 11206 |
* |
| 11207 |
* _.eq(NaN, NaN); |
| 11208 |
* // => true |
| 11209 |
*/ |
| 11210 |
function eq(value, other) { |
| 11211 |
return value === other || (value !== value && other !== other); |
| 11212 |
} |
| 11213 |
|
| 11214 |
/** |
| 11215 |
* Checks if `value` is greater than `other`. |
| 11216 |
* |
| 11217 |
* @static |
| 11218 |
* @memberOf _ |
| 11219 |
* @since 3.9.0 |
| 11220 |
* @category Lang |
| 11221 |
* @param {*} value The value to compare. |
| 11222 |
* @param {*} other The other value to compare. |
| 11223 |
* @returns {boolean} Returns `true` if `value` is greater than `other`, |
| 11224 |
* else `false`. |
| 11225 |
* @see _.lt |
| 11226 |
* @example |
| 11227 |
* |
| 11228 |
* _.gt(3, 1); |
| 11229 |
* // => true |
| 11230 |
* |
| 11231 |
* _.gt(3, 3); |
| 11232 |
* // => false |
| 11233 |
* |
| 11234 |
* _.gt(1, 3); |
| 11235 |
* // => false |
| 11236 |
*/ |
| 11237 |
var gt = createRelationalOperation(baseGt); |
| 11238 |
|
| 11239 |
/** |
| 11240 |
* Checks if `value` is greater than or equal to `other`. |
| 11241 |
* |
| 11242 |
* @static |
| 11243 |
* @memberOf _ |
| 11244 |
* @since 3.9.0 |
| 11245 |
* @category Lang |
| 11246 |
* @param {*} value The value to compare. |
| 11247 |
* @param {*} other The other value to compare. |
| 11248 |
* @returns {boolean} Returns `true` if `value` is greater than or equal to |
| 11249 |
* `other`, else `false`. |
| 11250 |
* @see _.lte |
| 11251 |
* @example |
| 11252 |
* |
| 11253 |
* _.gte(3, 1); |
| 11254 |
* // => true |
| 11255 |
* |
| 11256 |
* _.gte(3, 3); |
| 11257 |
* // => true |
| 11258 |
* |
| 11259 |
* _.gte(1, 3); |
| 11260 |
* // => false |
| 11261 |
*/ |
| 11262 |
var gte = createRelationalOperation(function(value, other) { |
| 11263 |
return value >= other; |
| 11264 |
}); |
| 11265 |
|
| 11266 |
/** |
| 11267 |
* Checks if `value` is likely an `arguments` object. |
| 11268 |
* |
| 11269 |
* @static |
| 11270 |
* @memberOf _ |
| 11271 |
* @since 0.1.0 |
| 11272 |
* @category Lang |
| 11273 |
* @param {*} value The value to check. |
| 11274 |
* @returns {boolean} Returns `true` if `value` is an `arguments` object, |
| 11275 |
* else `false`. |
| 11276 |
* @example |
| 11277 |
* |
| 11278 |
* _.isArguments(function() { return arguments; }()); |
| 11279 |
* // => true |
| 11280 |
* |
| 11281 |
* _.isArguments([1, 2, 3]); |
| 11282 |
* // => false |
| 11283 |
*/ |
| 11284 |
var isArguments = baseIsArguments(function() { return arguments; }()) ? baseIsArguments : function(value) { |
| 11285 |
return isObjectLike(value) && hasOwnProperty.call(value, 'callee') && |
| 11286 |
!propertyIsEnumerable.call(value, 'callee'); |
| 11287 |
}; |
| 11288 |
|
| 11289 |
/** |
| 11290 |
* Checks if `value` is classified as an `Array` object. |
| 11291 |
* |
| 11292 |
* @static |
| 11293 |
* @memberOf _ |
| 11294 |
* @since 0.1.0 |
| 11295 |
* @category Lang |
| 11296 |
* @param {*} value The value to check. |
| 11297 |
* @returns {boolean} Returns `true` if `value` is an array, else `false`. |
| 11298 |
* @example |
| 11299 |
* |
| 11300 |
* _.isArray([1, 2, 3]); |
| 11301 |
* // => true |
| 11302 |
* |
| 11303 |
* _.isArray(document.body.children); |
| 11304 |
* // => false |
| 11305 |
* |
| 11306 |
* _.isArray('abc'); |
| 11307 |
* // => false |
| 11308 |
* |
| 11309 |
* _.isArray(_.noop); |
| 11310 |
* // => false |
| 11311 |
*/ |
| 11312 |
var isArray = Array.isArray; |
| 11313 |
|
| 11314 |
/** |
| 11315 |
* Checks if `value` is classified as an `ArrayBuffer` object. |
| 11316 |
* |
| 11317 |
* @static |
| 11318 |
* @memberOf _ |
| 11319 |
* @since 4.3.0 |
| 11320 |
* @category Lang |
| 11321 |
* @param {*} value The value to check. |
| 11322 |
* @returns {boolean} Returns `true` if `value` is an array buffer, else `false`. |
| 11323 |
* @example |
| 11324 |
* |
| 11325 |
* _.isArrayBuffer(new ArrayBuffer(2)); |
| 11326 |
* // => true |
| 11327 |
* |
| 11328 |
* _.isArrayBuffer(new Array(2)); |
| 11329 |
* // => false |
| 11330 |
*/ |
| 11331 |
var isArrayBuffer = nodeIsArrayBuffer ? baseUnary(nodeIsArrayBuffer) : baseIsArrayBuffer; |
| 11332 |
|
| 11333 |
/** |
| 11334 |
* Checks if `value` is array-like. A value is considered array-like if it's |
| 11335 |
* not a function and has a `value.length` that's an integer greater than or |
| 11336 |
* equal to `0` and less than or equal to `Number.MAX_SAFE_INTEGER`. |
| 11337 |
* |
| 11338 |
* @static |
| 11339 |
* @memberOf _ |
| 11340 |
* @since 4.0.0 |
| 11341 |
* @category Lang |
| 11342 |
* @param {*} value The value to check. |
| 11343 |
* @returns {boolean} Returns `true` if `value` is array-like, else `false`. |
| 11344 |
* @example |
| 11345 |
* |
| 11346 |
* _.isArrayLike([1, 2, 3]); |
| 11347 |
* // => true |
| 11348 |
* |
| 11349 |
* _.isArrayLike(document.body.children); |
| 11350 |
* // => true |
| 11351 |
* |
| 11352 |
* _.isArrayLike('abc'); |
| 11353 |
* // => true |
| 11354 |
* |
| 11355 |
* _.isArrayLike(_.noop); |
| 11356 |
* // => false |
| 11357 |
*/ |
| 11358 |
function isArrayLike(value) { |
| 11359 |
return value != null && isLength(value.length) && !isFunction(value); |
| 11360 |
} |
| 11361 |
|
| 11362 |
/** |
| 11363 |
* This method is like `_.isArrayLike` except that it also checks if `value` |
| 11364 |
* is an object. |
| 11365 |
* |
| 11366 |
* @static |
| 11367 |
* @memberOf _ |
| 11368 |
* @since 4.0.0 |
| 11369 |
* @category Lang |
| 11370 |
* @param {*} value The value to check. |
| 11371 |
* @returns {boolean} Returns `true` if `value` is an array-like object, |
| 11372 |
* else `false`. |
| 11373 |
* @example |
| 11374 |
* |
| 11375 |
* _.isArrayLikeObject([1, 2, 3]); |
| 11376 |
* // => true |
| 11377 |
* |
| 11378 |
* _.isArrayLikeObject(document.body.children); |
| 11379 |
* // => true |
| 11380 |
* |
| 11381 |
* _.isArrayLikeObject('abc'); |
| 11382 |
* // => false |
| 11383 |
* |
| 11384 |
* _.isArrayLikeObject(_.noop); |
| 11385 |
* // => false |
| 11386 |
*/ |
| 11387 |
function isArrayLikeObject(value) { |
| 11388 |
return isObjectLike(value) && isArrayLike(value); |
| 11389 |
} |
| 11390 |
|
| 11391 |
/** |
| 11392 |
* Checks if `value` is classified as a boolean primitive or object. |
| 11393 |
* |
| 11394 |
* @static |
| 11395 |
* @memberOf _ |
| 11396 |
* @since 0.1.0 |
| 11397 |
* @category Lang |
| 11398 |
* @param {*} value The value to check. |
| 11399 |
* @returns {boolean} Returns `true` if `value` is a boolean, else `false`. |
| 11400 |
* @example |
| 11401 |
* |
| 11402 |
* _.isBoolean(false); |
| 11403 |
* // => true |
| 11404 |
* |
| 11405 |
* _.isBoolean(null); |
| 11406 |
* // => false |
| 11407 |
*/ |
| 11408 |
function isBoolean(value) { |
| 11409 |
return value === true || value === false || |
| 11410 |
(isObjectLike(value) && baseGetTag(value) == boolTag); |
| 11411 |
} |
| 11412 |
|
| 11413 |
/** |
| 11414 |
* Checks if `value` is a buffer. |
| 11415 |
* |
| 11416 |
* @static |
| 11417 |
* @memberOf _ |
| 11418 |
* @since 4.3.0 |
| 11419 |
* @category Lang |
| 11420 |
* @param {*} value The value to check. |
| 11421 |
* @returns {boolean} Returns `true` if `value` is a buffer, else `false`. |
| 11422 |
* @example |
| 11423 |
* |
| 11424 |
* _.isBuffer(new Buffer(2)); |
| 11425 |
* // => true |
| 11426 |
* |
| 11427 |
* _.isBuffer(new Uint8Array(2)); |
| 11428 |
* // => false |
| 11429 |
*/ |
| 11430 |
var isBuffer = nativeIsBuffer || stubFalse; |
| 11431 |
|
| 11432 |
/** |
| 11433 |
* Checks if `value` is classified as a `Date` object. |
| 11434 |
* |
| 11435 |
* @static |
| 11436 |
* @memberOf _ |
| 11437 |
* @since 0.1.0 |
| 11438 |
* @category Lang |
| 11439 |
* @param {*} value The value to check. |
| 11440 |
* @returns {boolean} Returns `true` if `value` is a date object, else `false`. |
| 11441 |
* @example |
| 11442 |
* |
| 11443 |
* _.isDate(new Date); |
| 11444 |
* // => true |
| 11445 |
* |
| 11446 |
* _.isDate('Mon April 23 2012'); |
| 11447 |
* // => false |
| 11448 |
*/ |
| 11449 |
var isDate = nodeIsDate ? baseUnary(nodeIsDate) : baseIsDate; |
| 11450 |
|
| 11451 |
/** |
| 11452 |
* Checks if `value` is likely a DOM element. |
| 11453 |
* |
| 11454 |
* @static |
| 11455 |
* @memberOf _ |
| 11456 |
* @since 0.1.0 |
| 11457 |
* @category Lang |
| 11458 |
* @param {*} value The value to check. |
| 11459 |
* @returns {boolean} Returns `true` if `value` is a DOM element, else `false`. |
| 11460 |
* @example |
| 11461 |
* |
| 11462 |
* _.isElement(document.body); |
| 11463 |
* // => true |
| 11464 |
* |
| 11465 |
* _.isElement('<body>'); |
| 11466 |
* // => false |
| 11467 |
*/ |
| 11468 |
function isElement(value) { |
| 11469 |
return isObjectLike(value) && value.nodeType === 1 && !isPlainObject(value); |
| 11470 |
} |
| 11471 |
|
| 11472 |
/** |
| 11473 |
* Checks if `value` is an empty object, collection, map, or set. |
| 11474 |
* |
| 11475 |
* Objects are considered empty if they have no own enumerable string keyed |
| 11476 |
* properties. |
| 11477 |
* |
| 11478 |
* Array-like values such as `arguments` objects, arrays, buffers, strings, or |
| 11479 |
* jQuery-like collections are considered empty if they have a `length` of `0`. |
| 11480 |
* Similarly, maps and sets are considered empty if they have a `size` of `0`. |
| 11481 |
* |
| 11482 |
* @static |
| 11483 |
* @memberOf _ |
| 11484 |
* @since 0.1.0 |
| 11485 |
* @category Lang |
| 11486 |
* @param {*} value The value to check. |
| 11487 |
* @returns {boolean} Returns `true` if `value` is empty, else `false`. |
| 11488 |
* @example |
| 11489 |
* |
| 11490 |
* _.isEmpty(null); |
| 11491 |
* // => true |
| 11492 |
* |
| 11493 |
* _.isEmpty(true); |
| 11494 |
* // => true |
| 11495 |
* |
| 11496 |
* _.isEmpty(1); |
| 11497 |
* // => true |
| 11498 |
* |
| 11499 |
* _.isEmpty([1, 2, 3]); |
| 11500 |
* // => false |
| 11501 |
* |
| 11502 |
* _.isEmpty({ 'a': 1 }); |
| 11503 |
* // => false |
| 11504 |
*/ |
| 11505 |
function isEmpty(value) { |
| 11506 |
if (value == null) { |
| 11507 |
return true; |
| 11508 |
} |
| 11509 |
if (isArrayLike(value) && |
| 11510 |
(isArray(value) || typeof value == 'string' || typeof value.splice == 'function' || |
| 11511 |
isBuffer(value) || isTypedArray(value) || isArguments(value))) { |
| 11512 |
return !value.length; |
| 11513 |
} |
| 11514 |
var tag = getTag(value); |
| 11515 |
if (tag == mapTag || tag == setTag) { |
| 11516 |
return !value.size; |
| 11517 |
} |
| 11518 |
if (isPrototype(value)) { |
| 11519 |
return !baseKeys(value).length; |
| 11520 |
} |
| 11521 |
for (var key in value) { |
| 11522 |
if (hasOwnProperty.call(value, key)) { |
| 11523 |
return false; |
| 11524 |
} |
| 11525 |
} |
| 11526 |
return true; |
| 11527 |
} |
| 11528 |
|
| 11529 |
/** |
| 11530 |
* Performs a deep comparison between two values to determine if they are |
| 11531 |
* equivalent. |
| 11532 |
* |
| 11533 |
* **Note:** This method supports comparing arrays, array buffers, booleans, |
| 11534 |
* date objects, error objects, maps, numbers, `Object` objects, regexes, |
| 11535 |
* sets, strings, symbols, and typed arrays. `Object` objects are compared |
| 11536 |
* by their own, not inherited, enumerable properties. Functions and DOM |
| 11537 |
* nodes are compared by strict equality, i.e. `===`. |
| 11538 |
* |
| 11539 |
* @static |
| 11540 |
* @memberOf _ |
| 11541 |
* @since 0.1.0 |
| 11542 |
* @category Lang |
| 11543 |
* @param {*} value The value to compare. |
| 11544 |
* @param {*} other The other value to compare. |
| 11545 |
* @returns {boolean} Returns `true` if the values are equivalent, else `false`. |
| 11546 |
* @example |
| 11547 |
* |
| 11548 |
* var object = { 'a': 1 }; |
| 11549 |
* var other = { 'a': 1 }; |
| 11550 |
* |
| 11551 |
* _.isEqual(object, other); |
| 11552 |
* // => true |
| 11553 |
* |
| 11554 |
* object === other; |
| 11555 |
* // => false |
| 11556 |
*/ |
| 11557 |
function isEqual(value, other) { |
| 11558 |
return baseIsEqual(value, other); |
| 11559 |
} |
| 11560 |
|
| 11561 |
/** |
| 11562 |
* This method is like `_.isEqual` except that it accepts `customizer` which |
| 11563 |
* is invoked to compare values. If `customizer` returns `undefined`, comparisons |
| 11564 |
* are handled by the method instead. The `customizer` is invoked with up to |
| 11565 |
* six arguments: (objValue, othValue [, index|key, object, other, stack]). |
| 11566 |
* |
| 11567 |
* @static |
| 11568 |
* @memberOf _ |
| 11569 |
* @since 4.0.0 |
| 11570 |
* @category Lang |
| 11571 |
* @param {*} value The value to compare. |
| 11572 |
* @param {*} other The other value to compare. |
| 11573 |
* @param {Function} [customizer] The function to customize comparisons. |
| 11574 |
* @returns {boolean} Returns `true` if the values are equivalent, else `false`. |
| 11575 |
* @example |
| 11576 |
* |
| 11577 |
* function isGreeting(value) { |
| 11578 |
* return /^h(?:i|ello)$/.test(value); |
| 11579 |
* } |
| 11580 |
* |
| 11581 |
* function customizer(objValue, othValue) { |
| 11582 |
* if (isGreeting(objValue) && isGreeting(othValue)) { |
| 11583 |
* return true; |
| 11584 |
* } |
| 11585 |
* } |
| 11586 |
* |
| 11587 |
* var array = ['hello', 'goodbye']; |
| 11588 |
* var other = ['hi', 'goodbye']; |
| 11589 |
* |
| 11590 |
* _.isEqualWith(array, other, customizer); |
| 11591 |
* // => true |
| 11592 |
*/ |
| 11593 |
function isEqualWith(value, other, customizer) { |
| 11594 |
customizer = typeof customizer == 'function' ? customizer : undefined; |
| 11595 |
var result = customizer ? customizer(value, other) : undefined; |
| 11596 |
return result === undefined ? baseIsEqual(value, other, undefined, customizer) : !!result; |
| 11597 |
} |
| 11598 |
|
| 11599 |
/** |
| 11600 |
* Checks if `value` is an `Error`, `EvalError`, `RangeError`, `ReferenceError`, |
| 11601 |
* `SyntaxError`, `TypeError`, or `URIError` object. |
| 11602 |
* |
| 11603 |
* @static |
| 11604 |
* @memberOf _ |
| 11605 |
* @since 3.0.0 |
| 11606 |
* @category Lang |
| 11607 |
* @param {*} value The value to check. |
| 11608 |
* @returns {boolean} Returns `true` if `value` is an error object, else `false`. |
| 11609 |
* @example |
| 11610 |
* |
| 11611 |
* _.isError(new Error); |
| 11612 |
* // => true |
| 11613 |
* |
| 11614 |
* _.isError(Error); |
| 11615 |
* // => false |
| 11616 |
*/ |
| 11617 |
function isError(value) { |
| 11618 |
if (!isObjectLike(value)) { |
| 11619 |
return false; |
| 11620 |
} |
| 11621 |
var tag = baseGetTag(value); |
| 11622 |
return tag == errorTag || tag == domExcTag || |
| 11623 |
(typeof value.message == 'string' && typeof value.name == 'string' && !isPlainObject(value)); |
| 11624 |
} |
| 11625 |
|
| 11626 |
/** |
| 11627 |
* Checks if `value` is a finite primitive number. |
| 11628 |
* |
| 11629 |
* **Note:** This method is based on |
| 11630 |
* [`Number.isFinite`](https://mdn.io/Number/isFinite). |
| 11631 |
* |
| 11632 |
* @static |
| 11633 |
* @memberOf _ |
| 11634 |
* @since 0.1.0 |
| 11635 |
* @category Lang |
| 11636 |
* @param {*} value The value to check. |
| 11637 |
* @returns {boolean} Returns `true` if `value` is a finite number, else `false`. |
| 11638 |
* @example |
| 11639 |
* |
| 11640 |
* _.isFinite(3); |
| 11641 |
* // => true |
| 11642 |
* |
| 11643 |
* _.isFinite(Number.MIN_VALUE); |
| 11644 |
* // => true |
| 11645 |
* |
| 11646 |
* _.isFinite(Infinity); |
| 11647 |
* // => false |
| 11648 |
* |
| 11649 |
* _.isFinite('3'); |
| 11650 |
* // => false |
| 11651 |
*/ |
| 11652 |
function isFinite(value) { |
| 11653 |
return typeof value == 'number' && nativeIsFinite(value); |
| 11654 |
} |
| 11655 |
|
| 11656 |
/** |
| 11657 |
* Checks if `value` is classified as a `Function` object. |
| 11658 |
* |
| 11659 |
* @static |
| 11660 |
* @memberOf _ |
| 11661 |
* @since 0.1.0 |
| 11662 |
* @category Lang |
| 11663 |
* @param {*} value The value to check. |
| 11664 |
* @returns {boolean} Returns `true` if `value` is a function, else `false`. |
| 11665 |
* @example |
| 11666 |
* |
| 11667 |
* _.isFunction(_); |
| 11668 |
* // => true |
| 11669 |
* |
| 11670 |
* _.isFunction(/abc/); |
| 11671 |
* // => false |
| 11672 |
*/ |
| 11673 |
function isFunction(value) { |
| 11674 |
if (!isObject(value)) { |
| 11675 |
return false; |
| 11676 |
} |
| 11677 |
// The use of `Object#toString` avoids issues with the `typeof` operator |
| 11678 |
// in Safari 9 which returns 'object' for typed arrays and other constructors. |
| 11679 |
var tag = baseGetTag(value); |
| 11680 |
return tag == funcTag || tag == genTag || tag == asyncTag || tag == proxyTag; |
| 11681 |
} |
| 11682 |
|
| 11683 |
/** |
| 11684 |
* Checks if `value` is an integer. |
| 11685 |
* |
| 11686 |
* **Note:** This method is based on |
| 11687 |
* [`Number.isInteger`](https://mdn.io/Number/isInteger). |
| 11688 |
* |
| 11689 |
* @static |
| 11690 |
* @memberOf _ |
| 11691 |
* @since 4.0.0 |
| 11692 |
* @category Lang |
| 11693 |
* @param {*} value The value to check. |
| 11694 |
* @returns {boolean} Returns `true` if `value` is an integer, else `false`. |
| 11695 |
* @example |
| 11696 |
* |
| 11697 |
* _.isInteger(3); |
| 11698 |
* // => true |
| 11699 |
* |
| 11700 |
* _.isInteger(Number.MIN_VALUE); |
| 11701 |
* // => false |
| 11702 |
* |
| 11703 |
* _.isInteger(Infinity); |
| 11704 |
* // => false |
| 11705 |
* |
| 11706 |
* _.isInteger('3'); |
| 11707 |
* // => false |
| 11708 |
*/ |
| 11709 |
function isInteger(value) { |
| 11710 |
return typeof value == 'number' && value == toInteger(value); |
| 11711 |
} |
| 11712 |
|
| 11713 |
/** |
| 11714 |
* Checks if `value` is a valid array-like length. |
| 11715 |
* |
| 11716 |
* **Note:** This method is loosely based on |
| 11717 |
* [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength). |
| 11718 |
* |
| 11719 |
* @static |
| 11720 |
* @memberOf _ |
| 11721 |
* @since 4.0.0 |
| 11722 |
* @category Lang |
| 11723 |
* @param {*} value The value to check. |
| 11724 |
* @returns {boolean} Returns `true` if `value` is a valid length, else `false`. |
| 11725 |
* @example |
| 11726 |
* |
| 11727 |
* _.isLength(3); |
| 11728 |
* // => true |
| 11729 |
* |
| 11730 |
* _.isLength(Number.MIN_VALUE); |
| 11731 |
* // => false |
| 11732 |
* |
| 11733 |
* _.isLength(Infinity); |
| 11734 |
* // => false |
| 11735 |
* |
| 11736 |
* _.isLength('3'); |
| 11737 |
* // => false |
| 11738 |
*/ |
| 11739 |
function isLength(value) { |
| 11740 |
return typeof value == 'number' && |
| 11741 |
value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER; |
| 11742 |
} |
| 11743 |
|
| 11744 |
/** |
| 11745 |
* Checks if `value` is the |
| 11746 |
* [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types) |
| 11747 |
* of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`) |
| 11748 |
* |
| 11749 |
* @static |
| 11750 |
* @memberOf _ |
| 11751 |
* @since 0.1.0 |
| 11752 |
* @category Lang |
| 11753 |
* @param {*} value The value to check. |
| 11754 |
* @returns {boolean} Returns `true` if `value` is an object, else `false`. |
| 11755 |
* @example |
| 11756 |
* |
| 11757 |
* _.isObject({}); |
| 11758 |
* // => true |
| 11759 |
* |
| 11760 |
* _.isObject([1, 2, 3]); |
| 11761 |
* // => true |
| 11762 |
* |
| 11763 |
* _.isObject(_.noop); |
| 11764 |
* // => true |
| 11765 |
* |
| 11766 |
* _.isObject(null); |
| 11767 |
* // => false |
| 11768 |
*/ |
| 11769 |
function isObject(value) { |
| 11770 |
var type = typeof value; |
| 11771 |
return value != null && (type == 'object' || type == 'function'); |
| 11772 |
} |
| 11773 |
|
| 11774 |
/** |
| 11775 |
* Checks if `value` is object-like. A value is object-like if it's not `null` |
| 11776 |
* and has a `typeof` result of "object". |
| 11777 |
* |
| 11778 |
* @static |
| 11779 |
* @memberOf _ |
| 11780 |
* @since 4.0.0 |
| 11781 |
* @category Lang |
| 11782 |
* @param {*} value The value to check. |
| 11783 |
* @returns {boolean} Returns `true` if `value` is object-like, else `false`. |
| 11784 |
* @example |
| 11785 |
* |
| 11786 |
* _.isObjectLike({}); |
| 11787 |
* // => true |
| 11788 |
* |
| 11789 |
* _.isObjectLike([1, 2, 3]); |
| 11790 |
* // => true |
| 11791 |
* |
| 11792 |
* _.isObjectLike(_.noop); |
| 11793 |
* // => false |
| 11794 |
* |
| 11795 |
* _.isObjectLike(null); |
| 11796 |
* // => false |
| 11797 |
*/ |
| 11798 |
function isObjectLike(value) { |
| 11799 |
return value != null && typeof value == 'object'; |
| 11800 |
} |
| 11801 |
|
| 11802 |
/** |
| 11803 |
* Checks if `value` is classified as a `Map` object. |
| 11804 |
* |
| 11805 |
* @static |
| 11806 |
* @memberOf _ |
| 11807 |
* @since 4.3.0 |
| 11808 |
* @category Lang |
| 11809 |
* @param {*} value The value to check. |
| 11810 |
* @returns {boolean} Returns `true` if `value` is a map, else `false`. |
| 11811 |
* @example |
| 11812 |
* |
| 11813 |
* _.isMap(new Map); |
| 11814 |
* // => true |
| 11815 |
* |
| 11816 |
* _.isMap(new WeakMap); |
| 11817 |
* // => false |
| 11818 |
*/ |
| 11819 |
var isMap = nodeIsMap ? baseUnary(nodeIsMap) : baseIsMap; |
| 11820 |
|
| 11821 |
/** |
| 11822 |
* Performs a partial deep comparison between `object` and `source` to |
| 11823 |
* determine if `object` contains equivalent property values. |
| 11824 |
* |
| 11825 |
* **Note:** This method is equivalent to `_.matches` when `source` is |
| 11826 |
* partially applied. |
| 11827 |
* |
| 11828 |
* Partial comparisons will match empty array and empty object `source` |
| 11829 |
* values against any array or object value, respectively. See `_.isEqual` |
| 11830 |
* for a list of supported value comparisons. |
| 11831 |
* |
| 11832 |
* @static |
| 11833 |
* @memberOf _ |
| 11834 |
* @since 3.0.0 |
| 11835 |
* @category Lang |
| 11836 |
* @param {Object} object The object to inspect. |
| 11837 |
* @param {Object} source The object of property values to match. |
| 11838 |
* @returns {boolean} Returns `true` if `object` is a match, else `false`. |
| 11839 |
* @example |
| 11840 |
* |
| 11841 |
* var object = { 'a': 1, 'b': 2 }; |
| 11842 |
* |
| 11843 |
* _.isMatch(object, { 'b': 2 }); |
| 11844 |
* // => true |
| 11845 |
* |
| 11846 |
* _.isMatch(object, { 'b': 1 }); |
| 11847 |
* // => false |
| 11848 |
*/ |
| 11849 |
function isMatch(object, source) { |
| 11850 |
return object === source || baseIsMatch(object, source, getMatchData(source)); |
| 11851 |
} |
| 11852 |
|
| 11853 |
/** |
| 11854 |
* This method is like `_.isMatch` except that it accepts `customizer` which |
| 11855 |
* is invoked to compare values. If `customizer` returns `undefined`, comparisons |
| 11856 |
* are handled by the method instead. The `customizer` is invoked with five |
| 11857 |
* arguments: (objValue, srcValue, index|key, object, source). |
| 11858 |
* |
| 11859 |
* @static |
| 11860 |
* @memberOf _ |
| 11861 |
* @since 4.0.0 |
| 11862 |
* @category Lang |
| 11863 |
* @param {Object} object The object to inspect. |
| 11864 |
* @param {Object} source The object of property values to match. |
| 11865 |
* @param {Function} [customizer] The function to customize comparisons. |
| 11866 |
* @returns {boolean} Returns `true` if `object` is a match, else `false`. |
| 11867 |
* @example |
| 11868 |
* |
| 11869 |
* function isGreeting(value) { |
| 11870 |
* return /^h(?:i|ello)$/.test(value); |
| 11871 |
* } |
| 11872 |
* |
| 11873 |
* function customizer(objValue, srcValue) { |
| 11874 |
* if (isGreeting(objValue) && isGreeting(srcValue)) { |
| 11875 |
* return true; |
| 11876 |
* } |
| 11877 |
* } |
| 11878 |
* |
| 11879 |
* var object = { 'greeting': 'hello' }; |
| 11880 |
* var source = { 'greeting': 'hi' }; |
| 11881 |
* |
| 11882 |
* _.isMatchWith(object, source, customizer); |
| 11883 |
* // => true |
| 11884 |
*/ |
| 11885 |
function isMatchWith(object, source, customizer) { |
| 11886 |
customizer = typeof customizer == 'function' ? customizer : undefined; |
| 11887 |
return baseIsMatch(object, source, getMatchData(source), customizer); |
| 11888 |
} |
| 11889 |
|
| 11890 |
/** |
| 11891 |
* Checks if `value` is `NaN`. |
| 11892 |
* |
| 11893 |
* **Note:** This method is based on |
| 11894 |
* [`Number.isNaN`](https://mdn.io/Number/isNaN) and is not the same as |
| 11895 |
* global [`isNaN`](https://mdn.io/isNaN) which returns `true` for |
| 11896 |
* `undefined` and other non-number values. |
| 11897 |
* |
| 11898 |
* @static |
| 11899 |
* @memberOf _ |
| 11900 |
* @since 0.1.0 |
| 11901 |
* @category Lang |
| 11902 |
* @param {*} value The value to check. |
| 11903 |
* @returns {boolean} Returns `true` if `value` is `NaN`, else `false`. |
| 11904 |
* @example |
| 11905 |
* |
| 11906 |
* _.isNaN(NaN); |
| 11907 |
* // => true |
| 11908 |
* |
| 11909 |
* _.isNaN(new Number(NaN)); |
| 11910 |
* // => true |
| 11911 |
* |
| 11912 |
* isNaN(undefined); |
| 11913 |
* // => true |
| 11914 |
* |
| 11915 |
* _.isNaN(undefined); |
| 11916 |
* // => false |
| 11917 |
*/ |
| 11918 |
function isNaN(value) { |
| 11919 |
// An `NaN` primitive is the only value that is not equal to itself. |
| 11920 |
// Perform the `toStringTag` check first to avoid errors with some |
| 11921 |
// ActiveX objects in IE. |
| 11922 |
return isNumber(value) && value != +value; |
| 11923 |
} |
| 11924 |
|
| 11925 |
/** |
| 11926 |
* Checks if `value` is a pristine native function. |
| 11927 |
* |
| 11928 |
* **Note:** This method can't reliably detect native functions in the presence |
| 11929 |
* of the core-js package because core-js circumvents this kind of detection. |
| 11930 |
* Despite multiple requests, the core-js maintainer has made it clear: any |
| 11931 |
* attempt to fix the detection will be obstructed. As a result, we're left |
| 11932 |
* with little choice but to throw an error. Unfortunately, this also affects |
| 11933 |
* packages, like [babel-polyfill](https://www.npmjs.com/package/babel-polyfill), |
| 11934 |
* which rely on core-js. |
| 11935 |
* |
| 11936 |
* @static |
| 11937 |
* @memberOf _ |
| 11938 |
* @since 3.0.0 |
| 11939 |
* @category Lang |
| 11940 |
* @param {*} value The value to check. |
| 11941 |
* @returns {boolean} Returns `true` if `value` is a native function, |
| 11942 |
* else `false`. |
| 11943 |
* @example |
| 11944 |
* |
| 11945 |
* _.isNative(Array.prototype.push); |
| 11946 |
* // => true |
| 11947 |
* |
| 11948 |
* _.isNative(_); |
| 11949 |
* // => false |
| 11950 |
*/ |
| 11951 |
function isNative(value) { |
| 11952 |
if (isMaskable(value)) { |
| 11953 |
throw new Error(CORE_ERROR_TEXT); |
| 11954 |
} |
| 11955 |
return baseIsNative(value); |
| 11956 |
} |
| 11957 |
|
| 11958 |
/** |
| 11959 |
* Checks if `value` is `null`. |
| 11960 |
* |
| 11961 |
* @static |
| 11962 |
* @memberOf _ |
| 11963 |
* @since 0.1.0 |
| 11964 |
* @category Lang |
| 11965 |
* @param {*} value The value to check. |
| 11966 |
* @returns {boolean} Returns `true` if `value` is `null`, else `false`. |
| 11967 |
* @example |
| 11968 |
* |
| 11969 |
* _.isNull(null); |
| 11970 |
* // => true |
| 11971 |
* |
| 11972 |
* _.isNull(void 0); |
| 11973 |
* // => false |
| 11974 |
*/ |
| 11975 |
function isNull(value) { |
| 11976 |
return value === null; |
| 11977 |
} |
| 11978 |
|
| 11979 |
/** |
| 11980 |
* Checks if `value` is `null` or `undefined`. |
| 11981 |
* |
| 11982 |
* @static |
| 11983 |
* @memberOf _ |
| 11984 |
* @since 4.0.0 |
| 11985 |
* @category Lang |
| 11986 |
* @param {*} value The value to check. |
| 11987 |
* @returns {boolean} Returns `true` if `value` is nullish, else `false`. |
| 11988 |
* @example |
| 11989 |
* |
| 11990 |
* _.isNil(null); |
| 11991 |
* // => true |
| 11992 |
* |
| 11993 |
* _.isNil(void 0); |
| 11994 |
* // => true |
| 11995 |
* |
| 11996 |
* _.isNil(NaN); |
| 11997 |
* // => false |
| 11998 |
*/ |
| 11999 |
function isNil(value) { |
| 12000 |
return value == null; |
| 12001 |
} |
| 12002 |
|
| 12003 |
/** |
| 12004 |
* Checks if `value` is classified as a `Number` primitive or object. |
| 12005 |
* |
| 12006 |
* **Note:** To exclude `Infinity`, `-Infinity`, and `NaN`, which are |
| 12007 |
* classified as numbers, use the `_.isFinite` method. |
| 12008 |
* |
| 12009 |
* @static |
| 12010 |
* @memberOf _ |
| 12011 |
* @since 0.1.0 |
| 12012 |
* @category Lang |
| 12013 |
* @param {*} value The value to check. |
| 12014 |
* @returns {boolean} Returns `true` if `value` is a number, else `false`. |
| 12015 |
* @example |
| 12016 |
* |
| 12017 |
* _.isNumber(3); |
| 12018 |
* // => true |
| 12019 |
* |
| 12020 |
* _.isNumber(Number.MIN_VALUE); |
| 12021 |
* // => true |
| 12022 |
* |
| 12023 |
* _.isNumber(Infinity); |
| 12024 |
* // => true |
| 12025 |
* |
| 12026 |
* _.isNumber('3'); |
| 12027 |
* // => false |
| 12028 |
*/ |
| 12029 |
function isNumber(value) { |
| 12030 |
return typeof value == 'number' || |
| 12031 |
(isObjectLike(value) && baseGetTag(value) == numberTag); |
| 12032 |
} |
| 12033 |
|
| 12034 |
/** |
| 12035 |
* Checks if `value` is a plain object, that is, an object created by the |
| 12036 |
* `Object` constructor or one with a `[[Prototype]]` of `null`. |
| 12037 |
* |
| 12038 |
* @static |
| 12039 |
* @memberOf _ |
| 12040 |
* @since 0.8.0 |
| 12041 |
* @category Lang |
| 12042 |
* @param {*} value The value to check. |
| 12043 |
* @returns {boolean} Returns `true` if `value` is a plain object, else `false`. |
| 12044 |
* @example |
| 12045 |
* |
| 12046 |
* function Foo() { |
| 12047 |
* this.a = 1; |
| 12048 |
* } |
| 12049 |
* |
| 12050 |
* _.isPlainObject(new Foo); |
| 12051 |
* // => false |
| 12052 |
* |
| 12053 |
* _.isPlainObject([1, 2, 3]); |
| 12054 |
* // => false |
| 12055 |
* |
| 12056 |
* _.isPlainObject({ 'x': 0, 'y': 0 }); |
| 12057 |
* // => true |
| 12058 |
* |
| 12059 |
* _.isPlainObject(Object.create(null)); |
| 12060 |
* // => true |
| 12061 |
*/ |
| 12062 |
function isPlainObject(value) { |
| 12063 |
if (!isObjectLike(value) || baseGetTag(value) != objectTag) { |
| 12064 |
return false; |
| 12065 |
} |
| 12066 |
var proto = getPrototype(value); |
| 12067 |
if (proto === null) { |
| 12068 |
return true; |
| 12069 |
} |
| 12070 |
var Ctor = hasOwnProperty.call(proto, 'constructor') && proto.constructor; |
| 12071 |
return typeof Ctor == 'function' && Ctor instanceof Ctor && |
| 12072 |
funcToString.call(Ctor) == objectCtorString; |
| 12073 |
} |
| 12074 |
|
| 12075 |
/** |
| 12076 |
* Checks if `value` is classified as a `RegExp` object. |
| 12077 |
* |
| 12078 |
* @static |
| 12079 |
* @memberOf _ |
| 12080 |
* @since 0.1.0 |
| 12081 |
* @category Lang |
| 12082 |
* @param {*} value The value to check. |
| 12083 |
* @returns {boolean} Returns `true` if `value` is a regexp, else `false`. |
| 12084 |
* @example |
| 12085 |
* |
| 12086 |
* _.isRegExp(/abc/); |
| 12087 |
* // => true |
| 12088 |
* |
| 12089 |
* _.isRegExp('/abc/'); |
| 12090 |
* // => false |
| 12091 |
*/ |
| 12092 |
var isRegExp = nodeIsRegExp ? baseUnary(nodeIsRegExp) : baseIsRegExp; |
| 12093 |
|
| 12094 |
/** |
| 12095 |
* Checks if `value` is a safe integer. An integer is safe if it's an IEEE-754 |
| 12096 |
* double precision number which isn't the result of a rounded unsafe integer. |
| 12097 |
* |
| 12098 |
* **Note:** This method is based on |
| 12099 |
* [`Number.isSafeInteger`](https://mdn.io/Number/isSafeInteger). |
| 12100 |
* |
| 12101 |
* @static |
| 12102 |
* @memberOf _ |
| 12103 |
* @since 4.0.0 |
| 12104 |
* @category Lang |
| 12105 |
* @param {*} value The value to check. |
| 12106 |
* @returns {boolean} Returns `true` if `value` is a safe integer, else `false`. |
| 12107 |
* @example |
| 12108 |
* |
| 12109 |
* _.isSafeInteger(3); |
| 12110 |
* // => true |
| 12111 |
* |
| 12112 |
* _.isSafeInteger(Number.MIN_VALUE); |
| 12113 |
* // => false |
| 12114 |
* |
| 12115 |
* _.isSafeInteger(Infinity); |
| 12116 |
* // => false |
| 12117 |
* |
| 12118 |
* _.isSafeInteger('3'); |
| 12119 |
* // => false |
| 12120 |
*/ |
| 12121 |
function isSafeInteger(value) { |
| 12122 |
return isInteger(value) && value >= -MAX_SAFE_INTEGER && value <= MAX_SAFE_INTEGER; |
| 12123 |
} |
| 12124 |
|
| 12125 |
/** |
| 12126 |
* Checks if `value` is classified as a `Set` object. |
| 12127 |
* |
| 12128 |
* @static |
| 12129 |
* @memberOf _ |
| 12130 |
* @since 4.3.0 |
| 12131 |
* @category Lang |
| 12132 |
* @param {*} value The value to check. |
| 12133 |
* @returns {boolean} Returns `true` if `value` is a set, else `false`. |
| 12134 |
* @example |
| 12135 |
* |
| 12136 |
* _.isSet(new Set); |
| 12137 |
* // => true |
| 12138 |
* |
| 12139 |
* _.isSet(new WeakSet); |
| 12140 |
* // => false |
| 12141 |
*/ |
| 12142 |
var isSet = nodeIsSet ? baseUnary(nodeIsSet) : baseIsSet; |
| 12143 |
|
| 12144 |
/** |
| 12145 |
* Checks if `value` is classified as a `String` primitive or object. |
| 12146 |
* |
| 12147 |
* @static |
| 12148 |
* @since 0.1.0 |
| 12149 |
* @memberOf _ |
| 12150 |
* @category Lang |
| 12151 |
* @param {*} value The value to check. |
| 12152 |
* @returns {boolean} Returns `true` if `value` is a string, else `false`. |
| 12153 |
* @example |
| 12154 |
* |
| 12155 |
* _.isString('abc'); |
| 12156 |
* // => true |
| 12157 |
* |
| 12158 |
* _.isString(1); |
| 12159 |
* // => false |
| 12160 |
*/ |
| 12161 |
function isString(value) { |
| 12162 |
return typeof value == 'string' || |
| 12163 |
(!isArray(value) && isObjectLike(value) && baseGetTag(value) == stringTag); |
| 12164 |
} |
| 12165 |
|
| 12166 |
/** |
| 12167 |
* Checks if `value` is classified as a `Symbol` primitive or object. |
| 12168 |
* |
| 12169 |
* @static |
| 12170 |
* @memberOf _ |
| 12171 |
* @since 4.0.0 |
| 12172 |
* @category Lang |
| 12173 |
* @param {*} value The value to check. |
| 12174 |
* @returns {boolean} Returns `true` if `value` is a symbol, else `false`. |
| 12175 |
* @example |
| 12176 |
* |
| 12177 |
* _.isSymbol(Symbol.iterator); |
| 12178 |
* // => true |
| 12179 |
* |
| 12180 |
* _.isSymbol('abc'); |
| 12181 |
* // => false |
| 12182 |
*/ |
| 12183 |
function isSymbol(value) { |
| 12184 |
return typeof value == 'symbol' || |
| 12185 |
(isObjectLike(value) && baseGetTag(value) == symbolTag); |
| 12186 |
} |
| 12187 |
|
| 12188 |
/** |
| 12189 |
* Checks if `value` is classified as a typed array. |
| 12190 |
* |
| 12191 |
* @static |
| 12192 |
* @memberOf _ |
| 12193 |
* @since 3.0.0 |
| 12194 |
* @category Lang |
| 12195 |
* @param {*} value The value to check. |
| 12196 |
* @returns {boolean} Returns `true` if `value` is a typed array, else `false`. |
| 12197 |
* @example |
| 12198 |
* |
| 12199 |
* _.isTypedArray(new Uint8Array); |
| 12200 |
* // => true |
| 12201 |
* |
| 12202 |
* _.isTypedArray([]); |
| 12203 |
* // => false |
| 12204 |
*/ |
| 12205 |
var isTypedArray = nodeIsTypedArray ? baseUnary(nodeIsTypedArray) : baseIsTypedArray; |
| 12206 |
|
| 12207 |
/** |
| 12208 |
* Checks if `value` is `undefined`. |
| 12209 |
* |
| 12210 |
* @static |
| 12211 |
* @since 0.1.0 |
| 12212 |
* @memberOf _ |
| 12213 |
* @category Lang |
| 12214 |
* @param {*} value The value to check. |
| 12215 |
* @returns {boolean} Returns `true` if `value` is `undefined`, else `false`. |
| 12216 |
* @example |
| 12217 |
* |
| 12218 |
* _.isUndefined(void 0); |
| 12219 |
* // => true |
| 12220 |
* |
| 12221 |
* _.isUndefined(null); |
| 12222 |
* // => false |
| 12223 |
*/ |
| 12224 |
function isUndefined(value) { |
| 12225 |
return value === undefined; |
| 12226 |
} |
| 12227 |
|
| 12228 |
/** |
| 12229 |
* Checks if `value` is classified as a `WeakMap` object. |
| 12230 |
* |
| 12231 |
* @static |
| 12232 |
* @memberOf _ |
| 12233 |
* @since 4.3.0 |
| 12234 |
* @category Lang |
| 12235 |
* @param {*} value The value to check. |
| 12236 |
* @returns {boolean} Returns `true` if `value` is a weak map, else `false`. |
| 12237 |
* @example |
| 12238 |
* |
| 12239 |
* _.isWeakMap(new WeakMap); |
| 12240 |
* // => true |
| 12241 |
* |
| 12242 |
* _.isWeakMap(new Map); |
| 12243 |
* // => false |
| 12244 |
*/ |
| 12245 |
function isWeakMap(value) { |
| 12246 |
return isObjectLike(value) && getTag(value) == weakMapTag; |
| 12247 |
} |
| 12248 |
|
| 12249 |
/** |
| 12250 |
* Checks if `value` is classified as a `WeakSet` object. |
| 12251 |
* |
| 12252 |
* @static |
| 12253 |
* @memberOf _ |
| 12254 |
* @since 4.3.0 |
| 12255 |
* @category Lang |
| 12256 |
* @param {*} value The value to check. |
| 12257 |
* @returns {boolean} Returns `true` if `value` is a weak set, else `false`. |
| 12258 |
* @example |
| 12259 |
* |
| 12260 |
* _.isWeakSet(new WeakSet); |
| 12261 |
* // => true |
| 12262 |
* |
| 12263 |
* _.isWeakSet(new Set); |
| 12264 |
* // => false |
| 12265 |
*/ |
| 12266 |
function isWeakSet(value) { |
| 12267 |
return isObjectLike(value) && baseGetTag(value) == weakSetTag; |
| 12268 |
} |
| 12269 |
|
| 12270 |
/** |
| 12271 |
* Checks if `value` is less than `other`. |
| 12272 |
* |
| 12273 |
* @static |
| 12274 |
* @memberOf _ |
| 12275 |
* @since 3.9.0 |
| 12276 |
* @category Lang |
| 12277 |
* @param {*} value The value to compare. |
| 12278 |
* @param {*} other The other value to compare. |
| 12279 |
* @returns {boolean} Returns `true` if `value` is less than `other`, |
| 12280 |
* else `false`. |
| 12281 |
* @see _.gt |
| 12282 |
* @example |
| 12283 |
* |
| 12284 |
* _.lt(1, 3); |
| 12285 |
* // => true |
| 12286 |
* |
| 12287 |
* _.lt(3, 3); |
| 12288 |
* // => false |
| 12289 |
* |
| 12290 |
* _.lt(3, 1); |
| 12291 |
* // => false |
| 12292 |
*/ |
| 12293 |
var lt = createRelationalOperation(baseLt); |
| 12294 |
|
| 12295 |
/** |
| 12296 |
* Checks if `value` is less than or equal to `other`. |
| 12297 |
* |
| 12298 |
* @static |
| 12299 |
* @memberOf _ |
| 12300 |
* @since 3.9.0 |
| 12301 |
* @category Lang |
| 12302 |
* @param {*} value The value to compare. |
| 12303 |
* @param {*} other The other value to compare. |
| 12304 |
* @returns {boolean} Returns `true` if `value` is less than or equal to |
| 12305 |
* `other`, else `false`. |
| 12306 |
* @see _.gte |
| 12307 |
* @example |
| 12308 |
* |
| 12309 |
* _.lte(1, 3); |
| 12310 |
* // => true |
| 12311 |
* |
| 12312 |
* _.lte(3, 3); |
| 12313 |
* // => true |
| 12314 |
* |
| 12315 |
* _.lte(3, 1); |
| 12316 |
* // => false |
| 12317 |
*/ |
| 12318 |
var lte = createRelationalOperation(function(value, other) { |
| 12319 |
return value <= other; |
| 12320 |
}); |
| 12321 |
|
| 12322 |
/** |
| 12323 |
* Converts `value` to an array. |
| 12324 |
* |
| 12325 |
* @static |
| 12326 |
* @since 0.1.0 |
| 12327 |
* @memberOf _ |
| 12328 |
* @category Lang |
| 12329 |
* @param {*} value The value to convert. |
| 12330 |
* @returns {Array} Returns the converted array. |
| 12331 |
* @example |
| 12332 |
* |
| 12333 |
* _.toArray({ 'a': 1, 'b': 2 }); |
| 12334 |
* // => [1, 2] |
| 12335 |
* |
| 12336 |
* _.toArray('abc'); |
| 12337 |
* // => ['a', 'b', 'c'] |
| 12338 |
* |
| 12339 |
* _.toArray(1); |
| 12340 |
* // => [] |
| 12341 |
* |
| 12342 |
* _.toArray(null); |
| 12343 |
* // => [] |
| 12344 |
*/ |
| 12345 |
function toArray(value) { |
| 12346 |
if (!value) { |
| 12347 |
return []; |
| 12348 |
} |
| 12349 |
if (isArrayLike(value)) { |
| 12350 |
return isString(value) ? stringToArray(value) : copyArray(value); |
| 12351 |
} |
| 12352 |
if (symIterator && value[symIterator]) { |
| 12353 |
return iteratorToArray(value[symIterator]()); |
| 12354 |
} |
| 12355 |
var tag = getTag(value), |
| 12356 |
func = tag == mapTag ? mapToArray : (tag == setTag ? setToArray : values); |
| 12357 |
|
| 12358 |
return func(value); |
| 12359 |
} |
| 12360 |
|
| 12361 |
/** |
| 12362 |
* Converts `value` to a finite number. |
| 12363 |
* |
| 12364 |
* @static |
| 12365 |
* @memberOf _ |
| 12366 |
* @since 4.12.0 |
| 12367 |
* @category Lang |
| 12368 |
* @param {*} value The value to convert. |
| 12369 |
* @returns {number} Returns the converted number. |
| 12370 |
* @example |
| 12371 |
* |
| 12372 |
* _.toFinite(3.2); |
| 12373 |
* // => 3.2 |
| 12374 |
* |
| 12375 |
* _.toFinite(Number.MIN_VALUE); |
| 12376 |
* // => 5e-324 |
| 12377 |
* |
| 12378 |
* _.toFinite(Infinity); |
| 12379 |
* // => 1.7976931348623157e+308 |
| 12380 |
* |
| 12381 |
* _.toFinite('3.2'); |
| 12382 |
* // => 3.2 |
| 12383 |
*/ |
| 12384 |
function toFinite(value) { |
| 12385 |
if (!value) { |
| 12386 |
return value === 0 ? value : 0; |
| 12387 |
} |
| 12388 |
value = toNumber(value); |
| 12389 |
if (value === INFINITY || value === -INFINITY) { |
| 12390 |
var sign = (value < 0 ? -1 : 1); |
| 12391 |
return sign * MAX_INTEGER; |
| 12392 |
} |
| 12393 |
return value === value ? value : 0; |
| 12394 |
} |
| 12395 |
|
| 12396 |
/** |
| 12397 |
* Converts `value` to an integer. |
| 12398 |
* |
| 12399 |
* **Note:** This method is loosely based on |
| 12400 |
* [`ToInteger`](http://www.ecma-international.org/ecma-262/7.0/#sec-tointeger). |
| 12401 |
* |
| 12402 |
* @static |
| 12403 |
* @memberOf _ |
| 12404 |
* @since 4.0.0 |
| 12405 |
* @category Lang |
| 12406 |
* @param {*} value The value to convert. |
| 12407 |
* @returns {number} Returns the converted integer. |
| 12408 |
* @example |
| 12409 |
* |
| 12410 |
* _.toInteger(3.2); |
| 12411 |
* // => 3 |
| 12412 |
* |
| 12413 |
* _.toInteger(Number.MIN_VALUE); |
| 12414 |
* // => 0 |
| 12415 |
* |
| 12416 |
* _.toInteger(Infinity); |
| 12417 |
* // => 1.7976931348623157e+308 |
| 12418 |
* |
| 12419 |
* _.toInteger('3.2'); |
| 12420 |
* // => 3 |
| 12421 |
*/ |
| 12422 |
function toInteger(value) { |
| 12423 |
var result = toFinite(value), |
| 12424 |
remainder = result % 1; |
| 12425 |
|
| 12426 |
return result === result ? (remainder ? result - remainder : result) : 0; |
| 12427 |
} |
| 12428 |
|
| 12429 |
/** |
| 12430 |
* Converts `value` to an integer suitable for use as the length of an |
| 12431 |
* array-like object. |
| 12432 |
* |
| 12433 |
* **Note:** This method is based on |
| 12434 |
* [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength). |
| 12435 |
* |
| 12436 |
* @static |
| 12437 |
* @memberOf _ |
| 12438 |
* @since 4.0.0 |
| 12439 |
* @category Lang |
| 12440 |
* @param {*} value The value to convert. |
| 12441 |
* @returns {number} Returns the converted integer. |
| 12442 |
* @example |
| 12443 |
* |
| 12444 |
* _.toLength(3.2); |
| 12445 |
* // => 3 |
| 12446 |
* |
| 12447 |
* _.toLength(Number.MIN_VALUE); |
| 12448 |
* // => 0 |
| 12449 |
* |
| 12450 |
* _.toLength(Infinity); |
| 12451 |
* // => 4294967295 |
| 12452 |
* |
| 12453 |
* _.toLength('3.2'); |
| 12454 |
* // => 3 |
| 12455 |
*/ |
| 12456 |
function toLength(value) { |
| 12457 |
return value ? baseClamp(toInteger(value), 0, MAX_ARRAY_LENGTH) : 0; |
| 12458 |
} |
| 12459 |
|
| 12460 |
/** |
| 12461 |
* Converts `value` to a number. |
| 12462 |
* |
| 12463 |
* @static |
| 12464 |
* @memberOf _ |
| 12465 |
* @since 4.0.0 |
| 12466 |
* @category Lang |
| 12467 |
* @param {*} value The value to process. |
| 12468 |
* @returns {number} Returns the number. |
| 12469 |
* @example |
| 12470 |
* |
| 12471 |
* _.toNumber(3.2); |
| 12472 |
* // => 3.2 |
| 12473 |
* |
| 12474 |
* _.toNumber(Number.MIN_VALUE); |
| 12475 |
* // => 5e-324 |
| 12476 |
* |
| 12477 |
* _.toNumber(Infinity); |
| 12478 |
* // => Infinity |
| 12479 |
* |
| 12480 |
* _.toNumber('3.2'); |
| 12481 |
* // => 3.2 |
| 12482 |
*/ |
| 12483 |
function toNumber(value) { |
| 12484 |
if (typeof value == 'number') { |
| 12485 |
return value; |
| 12486 |
} |
| 12487 |
if (isSymbol(value)) { |
| 12488 |
return NAN; |
| 12489 |
} |
| 12490 |
if (isObject(value)) { |
| 12491 |
var other = typeof value.valueOf == 'function' ? value.valueOf() : value; |
| 12492 |
value = isObject(other) ? (other + '') : other; |
| 12493 |
} |
| 12494 |
if (typeof value != 'string') { |
| 12495 |
return value === 0 ? value : +value; |
| 12496 |
} |
| 12497 |
value = value.replace(reTrim, ''); |
| 12498 |
var isBinary = reIsBinary.test(value); |
| 12499 |
return (isBinary || reIsOctal.test(value)) |
| 12500 |
? freeParseInt(value.slice(2), isBinary ? 2 : 8) |
| 12501 |
: (reIsBadHex.test(value) ? NAN : +value); |
| 12502 |
} |
| 12503 |
|
| 12504 |
/** |
| 12505 |
* Converts `value` to a plain object flattening inherited enumerable string |
| 12506 |
* keyed properties of `value` to own properties of the plain object. |
| 12507 |
* |
| 12508 |
* @static |
| 12509 |
* @memberOf _ |
| 12510 |
* @since 3.0.0 |
| 12511 |
* @category Lang |
| 12512 |
* @param {*} value The value to convert. |
| 12513 |
* @returns {Object} Returns the converted plain object. |
| 12514 |
* @example |
| 12515 |
* |
| 12516 |
* function Foo() { |
| 12517 |
* this.b = 2; |
| 12518 |
* } |
| 12519 |
* |
| 12520 |
* Foo.prototype.c = 3; |
| 12521 |
* |
| 12522 |
* _.assign({ 'a': 1 }, new Foo); |
| 12523 |
* // => { 'a': 1, 'b': 2 } |
| 12524 |
* |
| 12525 |
* _.assign({ 'a': 1 }, _.toPlainObject(new Foo)); |
| 12526 |
* // => { 'a': 1, 'b': 2, 'c': 3 } |
| 12527 |
*/ |
| 12528 |
function toPlainObject(value) { |
| 12529 |
return copyObject(value, keysIn(value)); |
| 12530 |
} |
| 12531 |
|
| 12532 |
/** |
| 12533 |
* Converts `value` to a safe integer. A safe integer can be compared and |
| 12534 |
* represented correctly. |
| 12535 |
* |
| 12536 |
* @static |
| 12537 |
* @memberOf _ |
| 12538 |
* @since 4.0.0 |
| 12539 |
* @category Lang |
| 12540 |
* @param {*} value The value to convert. |
| 12541 |
* @returns {number} Returns the converted integer. |
| 12542 |
* @example |
| 12543 |
* |
| 12544 |
* _.toSafeInteger(3.2); |
| 12545 |
* // => 3 |
| 12546 |
* |
| 12547 |
* _.toSafeInteger(Number.MIN_VALUE); |
| 12548 |
* // => 0 |
| 12549 |
* |
| 12550 |
* _.toSafeInteger(Infinity); |
| 12551 |
* // => 9007199254740991 |
| 12552 |
* |
| 12553 |
* _.toSafeInteger('3.2'); |
| 12554 |
* // => 3 |
| 12555 |
*/ |
| 12556 |
function toSafeInteger(value) { |
| 12557 |
return value |
| 12558 |
? baseClamp(toInteger(value), -MAX_SAFE_INTEGER, MAX_SAFE_INTEGER) |
| 12559 |
: (value === 0 ? value : 0); |
| 12560 |
} |
| 12561 |
|
| 12562 |
/** |
| 12563 |
* Converts `value` to a string. An empty string is returned for `null` |
| 12564 |
* and `undefined` values. The sign of `-0` is preserved. |
| 12565 |
* |
| 12566 |
* @static |
| 12567 |
* @memberOf _ |
| 12568 |
* @since 4.0.0 |
| 12569 |
* @category Lang |
| 12570 |
* @param {*} value The value to convert. |
| 12571 |
* @returns {string} Returns the converted string. |
| 12572 |
* @example |
| 12573 |
* |
| 12574 |
* _.toString(null); |
| 12575 |
* // => '' |
| 12576 |
* |
| 12577 |
* _.toString(-0); |
| 12578 |
* // => '-0' |
| 12579 |
* |
| 12580 |
* _.toString([1, 2, 3]); |
| 12581 |
* // => '1,2,3' |
| 12582 |
*/ |
| 12583 |
function toString(value) { |
| 12584 |
return value == null ? '' : baseToString(value); |
| 12585 |
} |
| 12586 |
|
| 12587 |
/*------------------------------------------------------------------------*/ |
| 12588 |
|
| 12589 |
/** |
| 12590 |
* Assigns own enumerable string keyed properties of source objects to the |
| 12591 |
* destination object. Source objects are applied from left to right. |
| 12592 |
* Subsequent sources overwrite property assignments of previous sources. |
| 12593 |
* |
| 12594 |
* **Note:** This method mutates `object` and is loosely based on |
| 12595 |
* [`Object.assign`](https://mdn.io/Object/assign). |
| 12596 |
* |
| 12597 |
* @static |
| 12598 |
* @memberOf _ |
| 12599 |
* @since 0.10.0 |
| 12600 |
* @category Object |
| 12601 |
* @param {Object} object The destination object. |
| 12602 |
* @param {...Object} [sources] The source objects. |
| 12603 |
* @returns {Object} Returns `object`. |
| 12604 |
* @see _.assignIn |
| 12605 |
* @example |
| 12606 |
* |
| 12607 |
* function Foo() { |
| 12608 |
* this.a = 1; |
| 12609 |
* } |
| 12610 |
* |
| 12611 |
* function Bar() { |
| 12612 |
* this.c = 3; |
| 12613 |
* } |
| 12614 |
* |
| 12615 |
* Foo.prototype.b = 2; |
| 12616 |
* Bar.prototype.d = 4; |
| 12617 |
* |
| 12618 |
* _.assign({ 'a': 0 }, new Foo, new Bar); |
| 12619 |
* // => { 'a': 1, 'c': 3 } |
| 12620 |
*/ |
| 12621 |
var assign = createAssigner(function(object, source) { |
| 12622 |
if (isPrototype(source) || isArrayLike(source)) { |
| 12623 |
copyObject(source, keys(source), object); |
| 12624 |
return; |
| 12625 |
} |
| 12626 |
for (var key in source) { |
| 12627 |
if (hasOwnProperty.call(source, key)) { |
| 12628 |
assignValue(object, key, source[key]); |
| 12629 |
} |
| 12630 |
} |
| 12631 |
}); |
| 12632 |
|
| 12633 |
/** |
| 12634 |
* This method is like `_.assign` except that it iterates over own and |
| 12635 |
* inherited source properties. |
| 12636 |
* |
| 12637 |
* **Note:** This method mutates `object`. |
| 12638 |
* |
| 12639 |
* @static |
| 12640 |
* @memberOf _ |
| 12641 |
* @since 4.0.0 |
| 12642 |
* @alias extend |
| 12643 |
* @category Object |
| 12644 |
* @param {Object} object The destination object. |
| 12645 |
* @param {...Object} [sources] The source objects. |
| 12646 |
* @returns {Object} Returns `object`. |
| 12647 |
* @see _.assign |
| 12648 |
* @example |
| 12649 |
* |
| 12650 |
* function Foo() { |
| 12651 |
* this.a = 1; |
| 12652 |
* } |
| 12653 |
* |
| 12654 |
* function Bar() { |
| 12655 |
* this.c = 3; |
| 12656 |
* } |
| 12657 |
* |
| 12658 |
* Foo.prototype.b = 2; |
| 12659 |
* Bar.prototype.d = 4; |
| 12660 |
* |
| 12661 |
* _.assignIn({ 'a': 0 }, new Foo, new Bar); |
| 12662 |
* // => { 'a': 1, 'b': 2, 'c': 3, 'd': 4 } |
| 12663 |
*/ |
| 12664 |
var assignIn = createAssigner(function(object, source) { |
| 12665 |
copyObject(source, keysIn(source), object); |
| 12666 |
}); |
| 12667 |
|
| 12668 |
/** |
| 12669 |
* This method is like `_.assignIn` except that it accepts `customizer` |
| 12670 |
* which is invoked to produce the assigned values. If `customizer` returns |
| 12671 |
* `undefined`, assignment is handled by the method instead. The `customizer` |
| 12672 |
* is invoked with five arguments: (objValue, srcValue, key, object, source). |
| 12673 |
* |
| 12674 |
* **Note:** This method mutates `object`. |
| 12675 |
* |
| 12676 |
* @static |
| 12677 |
* @memberOf _ |
| 12678 |
* @since 4.0.0 |
| 12679 |
* @alias extendWith |
| 12680 |
* @category Object |
| 12681 |
* @param {Object} object The destination object. |
| 12682 |
* @param {...Object} sources The source objects. |
| 12683 |
* @param {Function} [customizer] The function to customize assigned values. |
| 12684 |
* @returns {Object} Returns `object`. |
| 12685 |
* @see _.assignWith |
| 12686 |
* @example |
| 12687 |
* |
| 12688 |
* function customizer(objValue, srcValue) { |
| 12689 |
* return _.isUndefined(objValue) ? srcValue : objValue; |
| 12690 |
* } |
| 12691 |
* |
| 12692 |
* var defaults = _.partialRight(_.assignInWith, customizer); |
| 12693 |
* |
| 12694 |
* defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 }); |
| 12695 |
* // => { 'a': 1, 'b': 2 } |
| 12696 |
*/ |
| 12697 |
var assignInWith = createAssigner(function(object, source, srcIndex, customizer) { |
| 12698 |
copyObject(source, keysIn(source), object, customizer); |
| 12699 |
}); |
| 12700 |
|
| 12701 |
/** |
| 12702 |
* This method is like `_.assign` except that it accepts `customizer` |
| 12703 |
* which is invoked to produce the assigned values. If `customizer` returns |
| 12704 |
* `undefined`, assignment is handled by the method instead. The `customizer` |
| 12705 |
* is invoked with five arguments: (objValue, srcValue, key, object, source). |
| 12706 |
* |
| 12707 |
* **Note:** This method mutates `object`. |
| 12708 |
* |
| 12709 |
* @static |
| 12710 |
* @memberOf _ |
| 12711 |
* @since 4.0.0 |
| 12712 |
* @category Object |
| 12713 |
* @param {Object} object The destination object. |
| 12714 |
* @param {...Object} sources The source objects. |
| 12715 |
* @param {Function} [customizer] The function to customize assigned values. |
| 12716 |
* @returns {Object} Returns `object`. |
| 12717 |
* @see _.assignInWith |
| 12718 |
* @example |
| 12719 |
* |
| 12720 |
* function customizer(objValue, srcValue) { |
| 12721 |
* return _.isUndefined(objValue) ? srcValue : objValue; |
| 12722 |
* } |
| 12723 |
* |
| 12724 |
* var defaults = _.partialRight(_.assignWith, customizer); |
| 12725 |
* |
| 12726 |
* defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 }); |
| 12727 |
* // => { 'a': 1, 'b': 2 } |
| 12728 |
*/ |
| 12729 |
var assignWith = createAssigner(function(object, source, srcIndex, customizer) { |
| 12730 |
copyObject(source, keys(source), object, customizer); |
| 12731 |
}); |
| 12732 |
|
| 12733 |
/** |
| 12734 |
* Creates an array of values corresponding to `paths` of `object`. |
| 12735 |
* |
| 12736 |
* @static |
| 12737 |
* @memberOf _ |
| 12738 |
* @since 1.0.0 |
| 12739 |
* @category Object |
| 12740 |
* @param {Object} object The object to iterate over. |
| 12741 |
* @param {...(string|string[])} [paths] The property paths to pick. |
| 12742 |
* @returns {Array} Returns the picked values. |
| 12743 |
* @example |
| 12744 |
* |
| 12745 |
* var object = { 'a': [{ 'b': { 'c': 3 } }, 4] }; |
| 12746 |
* |
| 12747 |
* _.at(object, ['a[0].b.c', 'a[1]']); |
| 12748 |
* // => [3, 4] |
| 12749 |
*/ |
| 12750 |
var at = flatRest(baseAt); |
| 12751 |
|
| 12752 |
/** |
| 12753 |
* Creates an object that inherits from the `prototype` object. If a |
| 12754 |
* `properties` object is given, its own enumerable string keyed properties |
| 12755 |
* are assigned to the created object. |
| 12756 |
* |
| 12757 |
* @static |
| 12758 |
* @memberOf _ |
| 12759 |
* @since 2.3.0 |
| 12760 |
* @category Object |
| 12761 |
* @param {Object} prototype The object to inherit from. |
| 12762 |
* @param {Object} [properties] The properties to assign to the object. |
| 12763 |
* @returns {Object} Returns the new object. |
| 12764 |
* @example |
| 12765 |
* |
| 12766 |
* function Shape() { |
| 12767 |
* this.x = 0; |
| 12768 |
* this.y = 0; |
| 12769 |
* } |
| 12770 |
* |
| 12771 |
* function Circle() { |
| 12772 |
* Shape.call(this); |
| 12773 |
* } |
| 12774 |
* |
| 12775 |
* Circle.prototype = _.create(Shape.prototype, { |
| 12776 |
* 'constructor': Circle |
| 12777 |
* }); |
| 12778 |
* |
| 12779 |
* var circle = new Circle; |
| 12780 |
* circle instanceof Circle; |
| 12781 |
* // => true |
| 12782 |
* |
| 12783 |
* circle instanceof Shape; |
| 12784 |
* // => true |
| 12785 |
*/ |
| 12786 |
function create(prototype, properties) { |
| 12787 |
var result = baseCreate(prototype); |
| 12788 |
return properties == null ? result : baseAssign(result, properties); |
| 12789 |
} |
| 12790 |
|
| 12791 |
/** |
| 12792 |
* Assigns own and inherited enumerable string keyed properties of source |
| 12793 |
* objects to the destination object for all destination properties that |
| 12794 |
* resolve to `undefined`. Source objects are applied from left to right. |
| 12795 |
* Once a property is set, additional values of the same property are ignored. |
| 12796 |
* |
| 12797 |
* **Note:** This method mutates `object`. |
| 12798 |
* |
| 12799 |
* @static |
| 12800 |
* @since 0.1.0 |
| 12801 |
* @memberOf _ |
| 12802 |
* @category Object |
| 12803 |
* @param {Object} object The destination object. |
| 12804 |
* @param {...Object} [sources] The source objects. |
| 12805 |
* @returns {Object} Returns `object`. |
| 12806 |
* @see _.defaultsDeep |
| 12807 |
* @example |
| 12808 |
* |
| 12809 |
* _.defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 }); |
| 12810 |
* // => { 'a': 1, 'b': 2 } |
| 12811 |
*/ |
| 12812 |
var defaults = baseRest(function(object, sources) { |
| 12813 |
object = Object(object); |
| 12814 |
|
| 12815 |
var index = -1; |
| 12816 |
var length = sources.length; |
| 12817 |
var guard = length > 2 ? sources[2] : undefined; |
| 12818 |
|
| 12819 |
if (guard && isIterateeCall(sources[0], sources[1], guard)) { |
| 12820 |
length = 1; |
| 12821 |
} |
| 12822 |
|
| 12823 |
while (++index < length) { |
| 12824 |
var source = sources[index]; |
| 12825 |
var props = keysIn(source); |
| 12826 |
var propsIndex = -1; |
| 12827 |
var propsLength = props.length; |
| 12828 |
|
| 12829 |
while (++propsIndex < propsLength) { |
| 12830 |
var key = props[propsIndex]; |
| 12831 |
var value = object[key]; |
| 12832 |
|
| 12833 |
if (value === undefined || |
| 12834 |
(eq(value, objectProto[key]) && !hasOwnProperty.call(object, key))) { |
| 12835 |
object[key] = source[key]; |
| 12836 |
} |
| 12837 |
} |
| 12838 |
} |
| 12839 |
|
| 12840 |
return object; |
| 12841 |
}); |
| 12842 |
|
| 12843 |
/** |
| 12844 |
* This method is like `_.defaults` except that it recursively assigns |
| 12845 |
* default properties. |
| 12846 |
* |
| 12847 |
* **Note:** This method mutates `object`. |
| 12848 |
* |
| 12849 |
* @static |
| 12850 |
* @memberOf _ |
| 12851 |
* @since 3.10.0 |
| 12852 |
* @category Object |
| 12853 |
* @param {Object} object The destination object. |
| 12854 |
* @param {...Object} [sources] The source objects. |
| 12855 |
* @returns {Object} Returns `object`. |
| 12856 |
* @see _.defaults |
| 12857 |
* @example |
| 12858 |
* |
| 12859 |
* _.defaultsDeep({ 'a': { 'b': 2 } }, { 'a': { 'b': 1, 'c': 3 } }); |
| 12860 |
* // => { 'a': { 'b': 2, 'c': 3 } } |
| 12861 |
*/ |
| 12862 |
var defaultsDeep = baseRest(function(args) { |
| 12863 |
args.push(undefined, customDefaultsMerge); |
| 12864 |
return apply(mergeWith, undefined, args); |
| 12865 |
}); |
| 12866 |
|
| 12867 |
/** |
| 12868 |
* This method is like `_.find` except that it returns the key of the first |
| 12869 |
* element `predicate` returns truthy for instead of the element itself. |
| 12870 |
* |
| 12871 |
* @static |
| 12872 |
* @memberOf _ |
| 12873 |
* @since 1.1.0 |
| 12874 |
* @category Object |
| 12875 |
* @param {Object} object The object to inspect. |
| 12876 |
* @param {Function} [predicate=_.identity] The function invoked per iteration. |
| 12877 |
* @returns {string|undefined} Returns the key of the matched element, |
| 12878 |
* else `undefined`. |
| 12879 |
* @example |
| 12880 |
* |
| 12881 |
* var users = { |
| 12882 |
* 'barney': { 'age': 36, 'active': true }, |
| 12883 |
* 'fred': { 'age': 40, 'active': false }, |
| 12884 |
* 'pebbles': { 'age': 1, 'active': true } |
| 12885 |
* }; |
| 12886 |
* |
| 12887 |
* _.findKey(users, function(o) { return o.age < 40; }); |
| 12888 |
* // => 'barney' (iteration order is not guaranteed) |
| 12889 |
* |
| 12890 |
* // The `_.matches` iteratee shorthand. |
| 12891 |
* _.findKey(users, { 'age': 1, 'active': true }); |
| 12892 |
* // => 'pebbles' |
| 12893 |
* |
| 12894 |
* // The `_.matchesProperty` iteratee shorthand. |
| 12895 |
* _.findKey(users, ['active', false]); |
| 12896 |
* // => 'fred' |
| 12897 |
* |
| 12898 |
* // The `_.property` iteratee shorthand. |
| 12899 |
* _.findKey(users, 'active'); |
| 12900 |
* // => 'barney' |
| 12901 |
*/ |
| 12902 |
function findKey(object, predicate) { |
| 12903 |
return baseFindKey(object, getIteratee(predicate, 3), baseForOwn); |
| 12904 |
} |
| 12905 |
|
| 12906 |
/** |
| 12907 |
* This method is like `_.findKey` except that it iterates over elements of |
| 12908 |
* a collection in the opposite order. |
| 12909 |
* |
| 12910 |
* @static |
| 12911 |
* @memberOf _ |
| 12912 |
* @since 2.0.0 |
| 12913 |
* @category Object |
| 12914 |
* @param {Object} object The object to inspect. |
| 12915 |
* @param {Function} [predicate=_.identity] The function invoked per iteration. |
| 12916 |
* @returns {string|undefined} Returns the key of the matched element, |
| 12917 |
* else `undefined`. |
| 12918 |
* @example |
| 12919 |
* |
| 12920 |
* var users = { |
| 12921 |
* 'barney': { 'age': 36, 'active': true }, |
| 12922 |
* 'fred': { 'age': 40, 'active': false }, |
| 12923 |
* 'pebbles': { 'age': 1, 'active': true } |
| 12924 |
* }; |
| 12925 |
* |
| 12926 |
* _.findLastKey(users, function(o) { return o.age < 40; }); |
| 12927 |
* // => returns 'pebbles' assuming `_.findKey` returns 'barney' |
| 12928 |
* |
| 12929 |
* // The `_.matches` iteratee shorthand. |
| 12930 |
* _.findLastKey(users, { 'age': 36, 'active': true }); |
| 12931 |
* // => 'barney' |
| 12932 |
* |
| 12933 |
* // The `_.matchesProperty` iteratee shorthand. |
| 12934 |
* _.findLastKey(users, ['active', false]); |
| 12935 |
* // => 'fred' |
| 12936 |
* |
| 12937 |
* // The `_.property` iteratee shorthand. |
| 12938 |
* _.findLastKey(users, 'active'); |
| 12939 |
* // => 'pebbles' |
| 12940 |
*/ |
| 12941 |
function findLastKey(object, predicate) { |
| 12942 |
return baseFindKey(object, getIteratee(predicate, 3), baseForOwnRight); |
| 12943 |
} |
| 12944 |
|
| 12945 |
/** |
| 12946 |
* Iterates over own and inherited enumerable string keyed properties of an |
| 12947 |
* object and invokes `iteratee` for each property. The iteratee is invoked |
| 12948 |
* with three arguments: (value, key, object). Iteratee functions may exit |
| 12949 |
* iteration early by explicitly returning `false`. |
| 12950 |
* |
| 12951 |
* @static |
| 12952 |
* @memberOf _ |
| 12953 |
* @since 0.3.0 |
| 12954 |
* @category Object |
| 12955 |
* @param {Object} object The object to iterate over. |
| 12956 |
* @param {Function} [iteratee=_.identity] The function invoked per iteration. |
| 12957 |
* @returns {Object} Returns `object`. |
| 12958 |
* @see _.forInRight |
| 12959 |
* @example |
| 12960 |
* |
| 12961 |
* function Foo() { |
| 12962 |
* this.a = 1; |
| 12963 |
* this.b = 2; |
| 12964 |
* } |
| 12965 |
* |
| 12966 |
* Foo.prototype.c = 3; |
| 12967 |
* |
| 12968 |
* _.forIn(new Foo, function(value, key) { |
| 12969 |
* console.log(key); |
| 12970 |
* }); |
| 12971 |
* // => Logs 'a', 'b', then 'c' (iteration order is not guaranteed). |
| 12972 |
*/ |
| 12973 |
function forIn(object, iteratee) { |
| 12974 |
return object == null |
| 12975 |
? object |
| 12976 |
: baseFor(object, getIteratee(iteratee, 3), keysIn); |
| 12977 |
} |
| 12978 |
|
| 12979 |
/** |
| 12980 |
* This method is like `_.forIn` except that it iterates over properties of |
| 12981 |
* `object` in the opposite order. |
| 12982 |
* |
| 12983 |
* @static |
| 12984 |
* @memberOf _ |
| 12985 |
* @since 2.0.0 |
| 12986 |
* @category Object |
| 12987 |
* @param {Object} object The object to iterate over. |
| 12988 |
* @param {Function} [iteratee=_.identity] The function invoked per iteration. |
| 12989 |
* @returns {Object} Returns `object`. |
| 12990 |
* @see _.forIn |
| 12991 |
* @example |
| 12992 |
* |
| 12993 |
* function Foo() { |
| 12994 |
* this.a = 1; |
| 12995 |
* this.b = 2; |
| 12996 |
* } |
| 12997 |
* |
| 12998 |
* Foo.prototype.c = 3; |
| 12999 |
* |
| 13000 |
* _.forInRight(new Foo, function(value, key) { |
| 13001 |
* console.log(key); |
| 13002 |
* }); |
| 13003 |
* // => Logs 'c', 'b', then 'a' assuming `_.forIn` logs 'a', 'b', then 'c'. |
| 13004 |
*/ |
| 13005 |
function forInRight(object, iteratee) { |
| 13006 |
return object == null |
| 13007 |
? object |
| 13008 |
: baseForRight(object, getIteratee(iteratee, 3), keysIn); |
| 13009 |
} |
| 13010 |
|
| 13011 |
/** |
| 13012 |
* Iterates over own enumerable string keyed properties of an object and |
| 13013 |
* invokes `iteratee` for each property. The iteratee is invoked with three |
| 13014 |
* arguments: (value, key, object). Iteratee functions may exit iteration |
| 13015 |
* early by explicitly returning `false`. |
| 13016 |
* |
| 13017 |
* @static |
| 13018 |
* @memberOf _ |
| 13019 |
* @since 0.3.0 |
| 13020 |
* @category Object |
| 13021 |
* @param {Object} object The object to iterate over. |
| 13022 |
* @param {Function} [iteratee=_.identity] The function invoked per iteration. |
| 13023 |
* @returns {Object} Returns `object`. |
| 13024 |
* @see _.forOwnRight |
| 13025 |
* @example |
| 13026 |
* |
| 13027 |
* function Foo() { |
| 13028 |
* this.a = 1; |
| 13029 |
* this.b = 2; |
| 13030 |
* } |
| 13031 |
* |
| 13032 |
* Foo.prototype.c = 3; |
| 13033 |
* |
| 13034 |
* _.forOwn(new Foo, function(value, key) { |
| 13035 |
* console.log(key); |
| 13036 |
* }); |
| 13037 |
* // => Logs 'a' then 'b' (iteration order is not guaranteed). |
| 13038 |
*/ |
| 13039 |
function forOwn(object, iteratee) { |
| 13040 |
return object && baseForOwn(object, getIteratee(iteratee, 3)); |
| 13041 |
} |
| 13042 |
|
| 13043 |
/** |
| 13044 |
* This method is like `_.forOwn` except that it iterates over properties of |
| 13045 |
* `object` in the opposite order. |
| 13046 |
* |
| 13047 |
* @static |
| 13048 |
* @memberOf _ |
| 13049 |
* @since 2.0.0 |
| 13050 |
* @category Object |
| 13051 |
* @param {Object} object The object to iterate over. |
| 13052 |
* @param {Function} [iteratee=_.identity] The function invoked per iteration. |
| 13053 |
* @returns {Object} Returns `object`. |
| 13054 |
* @see _.forOwn |
| 13055 |
* @example |
| 13056 |
* |
| 13057 |
* function Foo() { |
| 13058 |
* this.a = 1; |
| 13059 |
* this.b = 2; |
| 13060 |
* } |
| 13061 |
* |
| 13062 |
* Foo.prototype.c = 3; |
| 13063 |
* |
| 13064 |
* _.forOwnRight(new Foo, function(value, key) { |
| 13065 |
* console.log(key); |
| 13066 |
* }); |
| 13067 |
* // => Logs 'b' then 'a' assuming `_.forOwn` logs 'a' then 'b'. |
| 13068 |
*/ |
| 13069 |
function forOwnRight(object, iteratee) { |
| 13070 |
return object && baseForOwnRight(object, getIteratee(iteratee, 3)); |
| 13071 |
} |
| 13072 |
|
| 13073 |
/** |
| 13074 |
* Creates an array of function property names from own enumerable properties |
| 13075 |
* of `object`. |
| 13076 |
* |
| 13077 |
* @static |
| 13078 |
* @since 0.1.0 |
| 13079 |
* @memberOf _ |
| 13080 |
* @category Object |
| 13081 |
* @param {Object} object The object to inspect. |
| 13082 |
* @returns {Array} Returns the function names. |
| 13083 |
* @see _.functionsIn |
| 13084 |
* @example |
| 13085 |
* |
| 13086 |
* function Foo() { |
| 13087 |
* this.a = _.constant('a'); |
| 13088 |
* this.b = _.constant('b'); |
| 13089 |
* } |
| 13090 |
* |
| 13091 |
* Foo.prototype.c = _.constant('c'); |
| 13092 |
* |
| 13093 |
* _.functions(new Foo); |
| 13094 |
* // => ['a', 'b'] |
| 13095 |
*/ |
| 13096 |
function functions(object) { |
| 13097 |
return object == null ? [] : baseFunctions(object, keys(object)); |
| 13098 |
} |
| 13099 |
|
| 13100 |
/** |
| 13101 |
* Creates an array of function property names from own and inherited |
| 13102 |
* enumerable properties of `object`. |
| 13103 |
* |
| 13104 |
* @static |
| 13105 |
* @memberOf _ |
| 13106 |
* @since 4.0.0 |
| 13107 |
* @category Object |
| 13108 |
* @param {Object} object The object to inspect. |
| 13109 |
* @returns {Array} Returns the function names. |
| 13110 |
* @see _.functions |
| 13111 |
* @example |
| 13112 |
* |
| 13113 |
* function Foo() { |
| 13114 |
* this.a = _.constant('a'); |
| 13115 |
* this.b = _.constant('b'); |
| 13116 |
* } |
| 13117 |
* |
| 13118 |
* Foo.prototype.c = _.constant('c'); |
| 13119 |
* |
| 13120 |
* _.functionsIn(new Foo); |
| 13121 |
* // => ['a', 'b', 'c'] |
| 13122 |
*/ |
| 13123 |
function functionsIn(object) { |
| 13124 |
return object == null ? [] : baseFunctions(object, keysIn(object)); |
| 13125 |
} |
| 13126 |
|
| 13127 |
/** |
| 13128 |
* Gets the value at `path` of `object`. If the resolved value is |
| 13129 |
* `undefined`, the `defaultValue` is returned in its place. |
| 13130 |
* |
| 13131 |
* @static |
| 13132 |
* @memberOf _ |
| 13133 |
* @since 3.7.0 |
| 13134 |
* @category Object |
| 13135 |
* @param {Object} object The object to query. |
| 13136 |
* @param {Array|string} path The path of the property to get. |
| 13137 |
* @param {*} [defaultValue] The value returned for `undefined` resolved values. |
| 13138 |
* @returns {*} Returns the resolved value. |
| 13139 |
* @example |
| 13140 |
* |
| 13141 |
* var object = { 'a': [{ 'b': { 'c': 3 } }] }; |
| 13142 |
* |
| 13143 |
* _.get(object, 'a[0].b.c'); |
| 13144 |
* // => 3 |
| 13145 |
* |
| 13146 |
* _.get(object, ['a', '0', 'b', 'c']); |
| 13147 |
* // => 3 |
| 13148 |
* |
| 13149 |
* _.get(object, 'a.b.c', 'default'); |
| 13150 |
* // => 'default' |
| 13151 |
*/ |
| 13152 |
function get(object, path, defaultValue) { |
| 13153 |
var result = object == null ? undefined : baseGet(object, path); |
| 13154 |
return result === undefined ? defaultValue : result; |
| 13155 |
} |
| 13156 |
|
| 13157 |
/** |
| 13158 |
* Checks if `path` is a direct property of `object`. |
| 13159 |
* |
| 13160 |
* @static |
| 13161 |
* @since 0.1.0 |
| 13162 |
* @memberOf _ |
| 13163 |
* @category Object |
| 13164 |
* @param {Object} object The object to query. |
| 13165 |
* @param {Array|string} path The path to check. |
| 13166 |
* @returns {boolean} Returns `true` if `path` exists, else `false`. |
| 13167 |
* @example |
| 13168 |
* |
| 13169 |
* var object = { 'a': { 'b': 2 } }; |
| 13170 |
* var other = _.create({ 'a': _.create({ 'b': 2 }) }); |
| 13171 |
* |
| 13172 |
* _.has(object, 'a'); |
| 13173 |
* // => true |
| 13174 |
* |
| 13175 |
* _.has(object, 'a.b'); |
| 13176 |
* // => true |
| 13177 |
* |
| 13178 |
* _.has(object, ['a', 'b']); |
| 13179 |
* // => true |
| 13180 |
* |
| 13181 |
* _.has(other, 'a'); |
| 13182 |
* // => false |
| 13183 |
*/ |
| 13184 |
function has(object, path) { |
| 13185 |
return object != null && hasPath(object, path, baseHas); |
| 13186 |
} |
| 13187 |
|
| 13188 |
/** |
| 13189 |
* Checks if `path` is a direct or inherited property of `object`. |
| 13190 |
* |
| 13191 |
* @static |
| 13192 |
* @memberOf _ |
| 13193 |
* @since 4.0.0 |
| 13194 |
* @category Object |
| 13195 |
* @param {Object} object The object to query. |
| 13196 |
* @param {Array|string} path The path to check. |
| 13197 |
* @returns {boolean} Returns `true` if `path` exists, else `false`. |
| 13198 |
* @example |
| 13199 |
* |
| 13200 |
* var object = _.create({ 'a': _.create({ 'b': 2 }) }); |
| 13201 |
* |
| 13202 |
* _.hasIn(object, 'a'); |
| 13203 |
* // => true |
| 13204 |
* |
| 13205 |
* _.hasIn(object, 'a.b'); |
| 13206 |
* // => true |
| 13207 |
* |
| 13208 |
* _.hasIn(object, ['a', 'b']); |
| 13209 |
* // => true |
| 13210 |
* |
| 13211 |
* _.hasIn(object, 'b'); |
| 13212 |
* // => false |
| 13213 |
*/ |
| 13214 |
function hasIn(object, path) { |
| 13215 |
return object != null && hasPath(object, path, baseHasIn); |
| 13216 |
} |
| 13217 |
|
| 13218 |
/** |
| 13219 |
* Creates an object composed of the inverted keys and values of `object`. |
| 13220 |
* If `object` contains duplicate values, subsequent values overwrite |
| 13221 |
* property assignments of previous values. |
| 13222 |
* |
| 13223 |
* @static |
| 13224 |
* @memberOf _ |
| 13225 |
* @since 0.7.0 |
| 13226 |
* @category Object |
| 13227 |
* @param {Object} object The object to invert. |
| 13228 |
* @returns {Object} Returns the new inverted object. |
| 13229 |
* @example |
| 13230 |
* |
| 13231 |
* var object = { 'a': 1, 'b': 2, 'c': 1 }; |
| 13232 |
* |
| 13233 |
* _.invert(object); |
| 13234 |
* // => { '1': 'c', '2': 'b' } |
| 13235 |
*/ |
| 13236 |
var invert = createInverter(function(result, value, key) { |
| 13237 |
if (value != null && |
| 13238 |
typeof value.toString != 'function') { |
| 13239 |
value = nativeObjectToString.call(value); |
| 13240 |
} |
| 13241 |
|
| 13242 |
result[value] = key; |
| 13243 |
}, constant(identity)); |
| 13244 |
|
| 13245 |
/** |
| 13246 |
* This method is like `_.invert` except that the inverted object is generated |
| 13247 |
* from the results of running each element of `object` thru `iteratee`. The |
| 13248 |
* corresponding inverted value of each inverted key is an array of keys |
| 13249 |
* responsible for generating the inverted value. The iteratee is invoked |
| 13250 |
* with one argument: (value). |
| 13251 |
* |
| 13252 |
* @static |
| 13253 |
* @memberOf _ |
| 13254 |
* @since 4.1.0 |
| 13255 |
* @category Object |
| 13256 |
* @param {Object} object The object to invert. |
| 13257 |
* @param {Function} [iteratee=_.identity] The iteratee invoked per element. |
| 13258 |
* @returns {Object} Returns the new inverted object. |
| 13259 |
* @example |
| 13260 |
* |
| 13261 |
* var object = { 'a': 1, 'b': 2, 'c': 1 }; |
| 13262 |
* |
| 13263 |
* _.invertBy(object); |
| 13264 |
* // => { '1': ['a', 'c'], '2': ['b'] } |
| 13265 |
* |
| 13266 |
* _.invertBy(object, function(value) { |
| 13267 |
* return 'group' + value; |
| 13268 |
* }); |
| 13269 |
* // => { 'group1': ['a', 'c'], 'group2': ['b'] } |
| 13270 |
*/ |
| 13271 |
var invertBy = createInverter(function(result, value, key) { |
| 13272 |
if (value != null && |
| 13273 |
typeof value.toString != 'function') { |
| 13274 |
value = nativeObjectToString.call(value); |
| 13275 |
} |
| 13276 |
|
| 13277 |
if (hasOwnProperty.call(result, value)) { |
| 13278 |
result[value].push(key); |
| 13279 |
} else { |
| 13280 |
result[value] = [key]; |
| 13281 |
} |
| 13282 |
}, getIteratee); |
| 13283 |
|
| 13284 |
/** |
| 13285 |
* Invokes the method at `path` of `object`. |
| 13286 |
* |
| 13287 |
* @static |
| 13288 |
* @memberOf _ |
| 13289 |
* @since 4.0.0 |
| 13290 |
* @category Object |
| 13291 |
* @param {Object} object The object to query. |
| 13292 |
* @param {Array|string} path The path of the method to invoke. |
| 13293 |
* @param {...*} [args] The arguments to invoke the method with. |
| 13294 |
* @returns {*} Returns the result of the invoked method. |
| 13295 |
* @example |
| 13296 |
* |
| 13297 |
* var object = { 'a': [{ 'b': { 'c': [1, 2, 3, 4] } }] }; |
| 13298 |
* |
| 13299 |
* _.invoke(object, 'a[0].b.c.slice', 1, 3); |
| 13300 |
* // => [2, 3] |
| 13301 |
*/ |
| 13302 |
var invoke = baseRest(baseInvoke); |
| 13303 |
|
| 13304 |
/** |
| 13305 |
* Creates an array of the own enumerable property names of `object`. |
| 13306 |
* |
| 13307 |
* **Note:** Non-object values are coerced to objects. See the |
| 13308 |
* [ES spec](http://ecma-international.org/ecma-262/7.0/#sec-object.keys) |
| 13309 |
* for more details. |
| 13310 |
* |
| 13311 |
* @static |
| 13312 |
* @since 0.1.0 |
| 13313 |
* @memberOf _ |
| 13314 |
* @category Object |
| 13315 |
* @param {Object} object The object to query. |
| 13316 |
* @returns {Array} Returns the array of property names. |
| 13317 |
* @example |
| 13318 |
* |
| 13319 |
* function Foo() { |
| 13320 |
* this.a = 1; |
| 13321 |
* this.b = 2; |
| 13322 |
* } |
| 13323 |
* |
| 13324 |
* Foo.prototype.c = 3; |
| 13325 |
* |
| 13326 |
* _.keys(new Foo); |
| 13327 |
* // => ['a', 'b'] (iteration order is not guaranteed) |
| 13328 |
* |
| 13329 |
* _.keys('hi'); |
| 13330 |
* // => ['0', '1'] |
| 13331 |
*/ |
| 13332 |
function keys(object) { |
| 13333 |
return isArrayLike(object) ? arrayLikeKeys(object) : baseKeys(object); |
| 13334 |
} |
| 13335 |
|
| 13336 |
/** |
| 13337 |
* Creates an array of the own and inherited enumerable property names of `object`. |
| 13338 |
* |
| 13339 |
* **Note:** Non-object values are coerced to objects. |
| 13340 |
* |
| 13341 |
* @static |
| 13342 |
* @memberOf _ |
| 13343 |
* @since 3.0.0 |
| 13344 |
* @category Object |
| 13345 |
* @param {Object} object The object to query. |
| 13346 |
* @returns {Array} Returns the array of property names. |
| 13347 |
* @example |
| 13348 |
* |
| 13349 |
* function Foo() { |
| 13350 |
* this.a = 1; |
| 13351 |
* this.b = 2; |
| 13352 |
* } |
| 13353 |
* |
| 13354 |
* Foo.prototype.c = 3; |
| 13355 |
* |
| 13356 |
* _.keysIn(new Foo); |
| 13357 |
* // => ['a', 'b', 'c'] (iteration order is not guaranteed) |
| 13358 |
*/ |
| 13359 |
function keysIn(object) { |
| 13360 |
return isArrayLike(object) ? arrayLikeKeys(object, true) : baseKeysIn(object); |
| 13361 |
} |
| 13362 |
|
| 13363 |
/** |
| 13364 |
* The opposite of `_.mapValues`; this method creates an object with the |
| 13365 |
* same values as `object` and keys generated by running each own enumerable |
| 13366 |
* string keyed property of `object` thru `iteratee`. The iteratee is invoked |
| 13367 |
* with three arguments: (value, key, object). |
| 13368 |
* |
| 13369 |
* @static |
| 13370 |
* @memberOf _ |
| 13371 |
* @since 3.8.0 |
| 13372 |
* @category Object |
| 13373 |
* @param {Object} object The object to iterate over. |
| 13374 |
* @param {Function} [iteratee=_.identity] The function invoked per iteration. |
| 13375 |
* @returns {Object} Returns the new mapped object. |
| 13376 |
* @see _.mapValues |
| 13377 |
* @example |
| 13378 |
* |
| 13379 |
* _.mapKeys({ 'a': 1, 'b': 2 }, function(value, key) { |
| 13380 |
* return key + value; |
| 13381 |
* }); |
| 13382 |
* // => { 'a1': 1, 'b2': 2 } |
| 13383 |
*/ |
| 13384 |
function mapKeys(object, iteratee) { |
| 13385 |
var result = {}; |
| 13386 |
iteratee = getIteratee(iteratee, 3); |
| 13387 |
|
| 13388 |
baseForOwn(object, function(value, key, object) { |
| 13389 |
baseAssignValue(result, iteratee(value, key, object), value); |
| 13390 |
}); |
| 13391 |
return result; |
| 13392 |
} |
| 13393 |
|
| 13394 |
/** |
| 13395 |
* Creates an object with the same keys as `object` and values generated |
| 13396 |
* by running each own enumerable string keyed property of `object` thru |
| 13397 |
* `iteratee`. The iteratee is invoked with three arguments: |
| 13398 |
* (value, key, object). |
| 13399 |
* |
| 13400 |
* @static |
| 13401 |
* @memberOf _ |
| 13402 |
* @since 2.4.0 |
| 13403 |
* @category Object |
| 13404 |
* @param {Object} object The object to iterate over. |
| 13405 |
* @param {Function} [iteratee=_.identity] The function invoked per iteration. |
| 13406 |
* @returns {Object} Returns the new mapped object. |
| 13407 |
* @see _.mapKeys |
| 13408 |
* @example |
| 13409 |
* |
| 13410 |
* var users = { |
| 13411 |
* 'fred': { 'user': 'fred', 'age': 40 }, |
| 13412 |
* 'pebbles': { 'user': 'pebbles', 'age': 1 } |
| 13413 |
* }; |
| 13414 |
* |
| 13415 |
* _.mapValues(users, function(o) { return o.age; }); |
| 13416 |
* // => { 'fred': 40, 'pebbles': 1 } (iteration order is not guaranteed) |
| 13417 |
* |
| 13418 |
* // The `_.property` iteratee shorthand. |
| 13419 |
* _.mapValues(users, 'age'); |
| 13420 |
* // => { 'fred': 40, 'pebbles': 1 } (iteration order is not guaranteed) |
| 13421 |
*/ |
| 13422 |
function mapValues(object, iteratee) { |
| 13423 |
var result = {}; |
| 13424 |
iteratee = getIteratee(iteratee, 3); |
| 13425 |
|
| 13426 |
baseForOwn(object, function(value, key, object) { |
| 13427 |
baseAssignValue(result, key, iteratee(value, key, object)); |
| 13428 |
}); |
| 13429 |
return result; |
| 13430 |
} |
| 13431 |
|
| 13432 |
/** |
| 13433 |
* This method is like `_.assign` except that it recursively merges own and |
| 13434 |
* inherited enumerable string keyed properties of source objects into the |
| 13435 |
* destination object. Source properties that resolve to `undefined` are |
| 13436 |
* skipped if a destination value exists. Array and plain object properties |
| 13437 |
* are merged recursively. Other objects and value types are overridden by |
| 13438 |
* assignment. Source objects are applied from left to right. Subsequent |
| 13439 |
* sources overwrite property assignments of previous sources. |
| 13440 |
* |
| 13441 |
* **Note:** This method mutates `object`. |
| 13442 |
* |
| 13443 |
* @static |
| 13444 |
* @memberOf _ |
| 13445 |
* @since 0.5.0 |
| 13446 |
* @category Object |
| 13447 |
* @param {Object} object The destination object. |
| 13448 |
* @param {...Object} [sources] The source objects. |
| 13449 |
* @returns {Object} Returns `object`. |
| 13450 |
* @example |
| 13451 |
* |
| 13452 |
* var object = { |
| 13453 |
* 'a': [{ 'b': 2 }, { 'd': 4 }] |
| 13454 |
* }; |
| 13455 |
* |
| 13456 |
* var other = { |
| 13457 |
* 'a': [{ 'c': 3 }, { 'e': 5 }] |
| 13458 |
* }; |
| 13459 |
* |
| 13460 |
* _.merge(object, other); |
| 13461 |
* // => { 'a': [{ 'b': 2, 'c': 3 }, { 'd': 4, 'e': 5 }] } |
| 13462 |
*/ |
| 13463 |
var merge = createAssigner(function(object, source, srcIndex) { |
| 13464 |
baseMerge(object, source, srcIndex); |
| 13465 |
}); |
| 13466 |
|
| 13467 |
/** |
| 13468 |
* This method is like `_.merge` except that it accepts `customizer` which |
| 13469 |
* is invoked to produce the merged values of the destination and source |
| 13470 |
* properties. If `customizer` returns `undefined`, merging is handled by the |
| 13471 |
* method instead. The `customizer` is invoked with six arguments: |
| 13472 |
* (objValue, srcValue, key, object, source, stack). |
| 13473 |
* |
| 13474 |
* **Note:** This method mutates `object`. |
| 13475 |
* |
| 13476 |
* @static |
| 13477 |
* @memberOf _ |
| 13478 |
* @since 4.0.0 |
| 13479 |
* @category Object |
| 13480 |
* @param {Object} object The destination object. |
| 13481 |
* @param {...Object} sources The source objects. |
| 13482 |
* @param {Function} customizer The function to customize assigned values. |
| 13483 |
* @returns {Object} Returns `object`. |
| 13484 |
* @example |
| 13485 |
* |
| 13486 |
* function customizer(objValue, srcValue) { |
| 13487 |
* if (_.isArray(objValue)) { |
| 13488 |
* return objValue.concat(srcValue); |
| 13489 |
* } |
| 13490 |
* } |
| 13491 |
* |
| 13492 |
* var object = { 'a': [1], 'b': [2] }; |
| 13493 |
* var other = { 'a': [3], 'b': [4] }; |
| 13494 |
* |
| 13495 |
* _.mergeWith(object, other, customizer); |
| 13496 |
* // => { 'a': [1, 3], 'b': [2, 4] } |
| 13497 |
*/ |
| 13498 |
var mergeWith = createAssigner(function(object, source, srcIndex, customizer) { |
| 13499 |
baseMerge(object, source, srcIndex, customizer); |
| 13500 |
}); |
| 13501 |
|
| 13502 |
/** |
| 13503 |
* The opposite of `_.pick`; this method creates an object composed of the |
| 13504 |
* own and inherited enumerable property paths of `object` that are not omitted. |
| 13505 |
* |
| 13506 |
* **Note:** This method is considerably slower than `_.pick`. |
| 13507 |
* |
| 13508 |
* @static |
| 13509 |
* @since 0.1.0 |
| 13510 |
* @memberOf _ |
| 13511 |
* @category Object |
| 13512 |
* @param {Object} object The source object. |
| 13513 |
* @param {...(string|string[])} [paths] The property paths to omit. |
| 13514 |
* @returns {Object} Returns the new object. |
| 13515 |
* @example |
| 13516 |
* |
| 13517 |
* var object = { 'a': 1, 'b': '2', 'c': 3 }; |
| 13518 |
* |
| 13519 |
* _.omit(object, ['a', 'c']); |
| 13520 |
* // => { 'b': '2' } |
| 13521 |
*/ |
| 13522 |
var omit = flatRest(function(object, paths) { |
| 13523 |
var result = {}; |
| 13524 |
if (object == null) { |
| 13525 |
return result; |
| 13526 |
} |
| 13527 |
var isDeep = false; |
| 13528 |
paths = arrayMap(paths, function(path) { |
| 13529 |
path = castPath(path, object); |
| 13530 |
isDeep || (isDeep = path.length > 1); |
| 13531 |
return path; |
| 13532 |
}); |
| 13533 |
copyObject(object, getAllKeysIn(object), result); |
| 13534 |
if (isDeep) { |
| 13535 |
result = baseClone(result, CLONE_DEEP_FLAG | CLONE_FLAT_FLAG | CLONE_SYMBOLS_FLAG, customOmitClone); |
| 13536 |
} |
| 13537 |
var length = paths.length; |
| 13538 |
while (length--) { |
| 13539 |
baseUnset(result, paths[length]); |
| 13540 |
} |
| 13541 |
return result; |
| 13542 |
}); |
| 13543 |
|
| 13544 |
/** |
| 13545 |
* The opposite of `_.pickBy`; this method creates an object composed of |
| 13546 |
* the own and inherited enumerable string keyed properties of `object` that |
| 13547 |
* `predicate` doesn't return truthy for. The predicate is invoked with two |
| 13548 |
* arguments: (value, key). |
| 13549 |
* |
| 13550 |
* @static |
| 13551 |
* @memberOf _ |
| 13552 |
* @since 4.0.0 |
| 13553 |
* @category Object |
| 13554 |
* @param {Object} object The source object. |
| 13555 |
* @param {Function} [predicate=_.identity] The function invoked per property. |
| 13556 |
* @returns {Object} Returns the new object. |
| 13557 |
* @example |
| 13558 |
* |
| 13559 |
* var object = { 'a': 1, 'b': '2', 'c': 3 }; |
| 13560 |
* |
| 13561 |
* _.omitBy(object, _.isNumber); |
| 13562 |
* // => { 'b': '2' } |
| 13563 |
*/ |
| 13564 |
function omitBy(object, predicate) { |
| 13565 |
return pickBy(object, negate(getIteratee(predicate))); |
| 13566 |
} |
| 13567 |
|
| 13568 |
/** |
| 13569 |
* Creates an object composed of the picked `object` properties. |
| 13570 |
* |
| 13571 |
* @static |
| 13572 |
* @since 0.1.0 |
| 13573 |
* @memberOf _ |
| 13574 |
* @category Object |
| 13575 |
* @param {Object} object The source object. |
| 13576 |
* @param {...(string|string[])} [paths] The property paths to pick. |
| 13577 |
* @returns {Object} Returns the new object. |
| 13578 |
* @example |
| 13579 |
* |
| 13580 |
* var object = { 'a': 1, 'b': '2', 'c': 3 }; |
| 13581 |
* |
| 13582 |
* _.pick(object, ['a', 'c']); |
| 13583 |
* // => { 'a': 1, 'c': 3 } |
| 13584 |
*/ |
| 13585 |
var pick = flatRest(function(object, paths) { |
| 13586 |
return object == null ? {} : basePick(object, paths); |
| 13587 |
}); |
| 13588 |
|
| 13589 |
/** |
| 13590 |
* Creates an object composed of the `object` properties `predicate` returns |
| 13591 |
* truthy for. The predicate is invoked with two arguments: (value, key). |
| 13592 |
* |
| 13593 |
* @static |
| 13594 |
* @memberOf _ |
| 13595 |
* @since 4.0.0 |
| 13596 |
* @category Object |
| 13597 |
* @param {Object} object The source object. |
| 13598 |
* @param {Function} [predicate=_.identity] The function invoked per property. |
| 13599 |
* @returns {Object} Returns the new object. |
| 13600 |
* @example |
| 13601 |
* |
| 13602 |
* var object = { 'a': 1, 'b': '2', 'c': 3 }; |
| 13603 |
* |
| 13604 |
* _.pickBy(object, _.isNumber); |
| 13605 |
* // => { 'a': 1, 'c': 3 } |
| 13606 |
*/ |
| 13607 |
function pickBy(object, predicate) { |
| 13608 |
if (object == null) { |
| 13609 |
return {}; |
| 13610 |
} |
| 13611 |
var props = arrayMap(getAllKeysIn(object), function(prop) { |
| 13612 |
return [prop]; |
| 13613 |
}); |
| 13614 |
predicate = getIteratee(predicate); |
| 13615 |
return basePickBy(object, props, function(value, path) { |
| 13616 |
return predicate(value, path[0]); |
| 13617 |
}); |
| 13618 |
} |
| 13619 |
|
| 13620 |
/** |
| 13621 |
* This method is like `_.get` except that if the resolved value is a |
| 13622 |
* function it's invoked with the `this` binding of its parent object and |
| 13623 |
* its result is returned. |
| 13624 |
* |
| 13625 |
* @static |
| 13626 |
* @since 0.1.0 |
| 13627 |
* @memberOf _ |
| 13628 |
* @category Object |
| 13629 |
* @param {Object} object The object to query. |
| 13630 |
* @param {Array|string} path The path of the property to resolve. |
| 13631 |
* @param {*} [defaultValue] The value returned for `undefined` resolved values. |
| 13632 |
* @returns {*} Returns the resolved value. |
| 13633 |
* @example |
| 13634 |
* |
| 13635 |
* var object = { 'a': [{ 'b': { 'c1': 3, 'c2': _.constant(4) } }] }; |
| 13636 |
* |
| 13637 |
* _.result(object, 'a[0].b.c1'); |
| 13638 |
* // => 3 |
| 13639 |
* |
| 13640 |
* _.result(object, 'a[0].b.c2'); |
| 13641 |
* // => 4 |
| 13642 |
* |
| 13643 |
* _.result(object, 'a[0].b.c3', 'default'); |
| 13644 |
* // => 'default' |
| 13645 |
* |
| 13646 |
* _.result(object, 'a[0].b.c3', _.constant('default')); |
| 13647 |
* // => 'default' |
| 13648 |
*/ |
| 13649 |
function result(object, path, defaultValue) { |
| 13650 |
path = castPath(path, object); |
| 13651 |
|
| 13652 |
var index = -1, |
| 13653 |
length = path.length; |
| 13654 |
|
| 13655 |
// Ensure the loop is entered when path is empty. |
| 13656 |
if (!length) { |
| 13657 |
length = 1; |
| 13658 |
object = undefined; |
| 13659 |
} |
| 13660 |
while (++index < length) { |
| 13661 |
var value = object == null ? undefined : object[toKey(path[index])]; |
| 13662 |
if (value === undefined) { |
| 13663 |
index = length; |
| 13664 |
value = defaultValue; |
| 13665 |
} |
| 13666 |
object = isFunction(value) ? value.call(object) : value; |
| 13667 |
} |
| 13668 |
return object; |
| 13669 |
} |
| 13670 |
|
| 13671 |
/** |
| 13672 |
* Sets the value at `path` of `object`. If a portion of `path` doesn't exist, |
| 13673 |
* it's created. Arrays are created for missing index properties while objects |
| 13674 |
* are created for all other missing properties. Use `_.setWith` to customize |
| 13675 |
* `path` creation. |
| 13676 |
* |
| 13677 |
* **Note:** This method mutates `object`. |
| 13678 |
* |
| 13679 |
* @static |
| 13680 |
* @memberOf _ |
| 13681 |
* @since 3.7.0 |
| 13682 |
* @category Object |
| 13683 |
* @param {Object} object The object to modify. |
| 13684 |
* @param {Array|string} path The path of the property to set. |
| 13685 |
* @param {*} value The value to set. |
| 13686 |
* @returns {Object} Returns `object`. |
| 13687 |
* @example |
| 13688 |
* |
| 13689 |
* var object = { 'a': [{ 'b': { 'c': 3 } }] }; |
| 13690 |
* |
| 13691 |
* _.set(object, 'a[0].b.c', 4); |
| 13692 |
* console.log(object.a[0].b.c); |
| 13693 |
* // => 4 |
| 13694 |
* |
| 13695 |
* _.set(object, ['x', '0', 'y', 'z'], 5); |
| 13696 |
* console.log(object.x[0].y.z); |
| 13697 |
* // => 5 |
| 13698 |
*/ |
| 13699 |
function set(object, path, value) { |
| 13700 |
return object == null ? object : baseSet(object, path, value); |
| 13701 |
} |
| 13702 |
|
| 13703 |
/** |
| 13704 |
* This method is like `_.set` except that it accepts `customizer` which is |
| 13705 |
* invoked to produce the objects of `path`. If `customizer` returns `undefined` |
| 13706 |
* path creation is handled by the method instead. The `customizer` is invoked |
| 13707 |
* with three arguments: (nsValue, key, nsObject). |
| 13708 |
* |
| 13709 |
* **Note:** This method mutates `object`. |
| 13710 |
* |
| 13711 |
* @static |
| 13712 |
* @memberOf _ |
| 13713 |
* @since 4.0.0 |
| 13714 |
* @category Object |
| 13715 |
* @param {Object} object The object to modify. |
| 13716 |
* @param {Array|string} path The path of the property to set. |
| 13717 |
* @param {*} value The value to set. |
| 13718 |
* @param {Function} [customizer] The function to customize assigned values. |
| 13719 |
* @returns {Object} Returns `object`. |
| 13720 |
* @example |
| 13721 |
* |
| 13722 |
* var object = {}; |
| 13723 |
* |
| 13724 |
* _.setWith(object, '[0][1]', 'a', Object); |
| 13725 |
* // => { '0': { '1': 'a' } } |
| 13726 |
*/ |
| 13727 |
function setWith(object, path, value, customizer) { |
| 13728 |
customizer = typeof customizer == 'function' ? customizer : undefined; |
| 13729 |
return object == null ? object : baseSet(object, path, value, customizer); |
| 13730 |
} |
| 13731 |
|
| 13732 |
/** |
| 13733 |
* Creates an array of own enumerable string keyed-value pairs for `object` |
| 13734 |
* which can be consumed by `_.fromPairs`. If `object` is a map or set, its |
| 13735 |
* entries are returned. |
| 13736 |
* |
| 13737 |
* @static |
| 13738 |
* @memberOf _ |
| 13739 |
* @since 4.0.0 |
| 13740 |
* @alias entries |
| 13741 |
* @category Object |
| 13742 |
* @param {Object} object The object to query. |
| 13743 |
* @returns {Array} Returns the key-value pairs. |
| 13744 |
* @example |
| 13745 |
* |
| 13746 |
* function Foo() { |
| 13747 |
* this.a = 1; |
| 13748 |
* this.b = 2; |
| 13749 |
* } |
| 13750 |
* |
| 13751 |
* Foo.prototype.c = 3; |
| 13752 |
* |
| 13753 |
* _.toPairs(new Foo); |
| 13754 |
* // => [['a', 1], ['b', 2]] (iteration order is not guaranteed) |
| 13755 |
*/ |
| 13756 |
var toPairs = createToPairs(keys); |
| 13757 |
|
| 13758 |
/** |
| 13759 |
* Creates an array of own and inherited enumerable string keyed-value pairs |
| 13760 |
* for `object` which can be consumed by `_.fromPairs`. If `object` is a map |
| 13761 |
* or set, its entries are returned. |
| 13762 |
* |
| 13763 |
* @static |
| 13764 |
* @memberOf _ |
| 13765 |
* @since 4.0.0 |
| 13766 |
* @alias entriesIn |
| 13767 |
* @category Object |
| 13768 |
* @param {Object} object The object to query. |
| 13769 |
* @returns {Array} Returns the key-value pairs. |
| 13770 |
* @example |
| 13771 |
* |
| 13772 |
* function Foo() { |
| 13773 |
* this.a = 1; |
| 13774 |
* this.b = 2; |
| 13775 |
* } |
| 13776 |
* |
| 13777 |
* Foo.prototype.c = 3; |
| 13778 |
* |
| 13779 |
* _.toPairsIn(new Foo); |
| 13780 |
* // => [['a', 1], ['b', 2], ['c', 3]] (iteration order is not guaranteed) |
| 13781 |
*/ |
| 13782 |
var toPairsIn = createToPairs(keysIn); |
| 13783 |
|
| 13784 |
/** |
| 13785 |
* An alternative to `_.reduce`; this method transforms `object` to a new |
| 13786 |
* `accumulator` object which is the result of running each of its own |
| 13787 |
* enumerable string keyed properties thru `iteratee`, with each invocation |
| 13788 |
* potentially mutating the `accumulator` object. If `accumulator` is not |
| 13789 |
* provided, a new object with the same `[[Prototype]]` will be used. The |
| 13790 |
* iteratee is invoked with four arguments: (accumulator, value, key, object). |
| 13791 |
* Iteratee functions may exit iteration early by explicitly returning `false`. |
| 13792 |
* |
| 13793 |
* @static |
| 13794 |
* @memberOf _ |
| 13795 |
* @since 1.3.0 |
| 13796 |
* @category Object |
| 13797 |
* @param {Object} object The object to iterate over. |
| 13798 |
* @param {Function} [iteratee=_.identity] The function invoked per iteration. |
| 13799 |
* @param {*} [accumulator] The custom accumulator value. |
| 13800 |
* @returns {*} Returns the accumulated value. |
| 13801 |
* @example |
| 13802 |
* |
| 13803 |
* _.transform([2, 3, 4], function(result, n) { |
| 13804 |
* result.push(n *= n); |
| 13805 |
* return n % 2 == 0; |
| 13806 |
* }, []); |
| 13807 |
* // => [4, 9] |
| 13808 |
* |
| 13809 |
* _.transform({ 'a': 1, 'b': 2, 'c': 1 }, function(result, value, key) { |
| 13810 |
* (result[value] || (result[value] = [])).push(key); |
| 13811 |
* }, {}); |
| 13812 |
* // => { '1': ['a', 'c'], '2': ['b'] } |
| 13813 |
*/ |
| 13814 |
function transform(object, iteratee, accumulator) { |
| 13815 |
var isArr = isArray(object), |
| 13816 |
isArrLike = isArr || isBuffer(object) || isTypedArray(object); |
| 13817 |
|
| 13818 |
iteratee = getIteratee(iteratee, 4); |
| 13819 |
if (accumulator == null) { |
| 13820 |
var Ctor = object && object.constructor; |
| 13821 |
if (isArrLike) { |
| 13822 |
accumulator = isArr ? new Ctor : []; |
| 13823 |
} |
| 13824 |
else if (isObject(object)) { |
| 13825 |
accumulator = isFunction(Ctor) ? baseCreate(getPrototype(object)) : {}; |
| 13826 |
} |
| 13827 |
else { |
| 13828 |
accumulator = {}; |
| 13829 |
} |
| 13830 |
} |
| 13831 |
(isArrLike ? arrayEach : baseForOwn)(object, function(value, index, object) { |
| 13832 |
return iteratee(accumulator, value, index, object); |
| 13833 |
}); |
| 13834 |
return accumulator; |
| 13835 |
} |
| 13836 |
|
| 13837 |
/** |
| 13838 |
* Removes the property at `path` of `object`. |
| 13839 |
* |
| 13840 |
* **Note:** This method mutates `object`. |
| 13841 |
* |
| 13842 |
* @static |
| 13843 |
* @memberOf _ |
| 13844 |
* @since 4.0.0 |
| 13845 |
* @category Object |
| 13846 |
* @param {Object} object The object to modify. |
| 13847 |
* @param {Array|string} path The path of the property to unset. |
| 13848 |
* @returns {boolean} Returns `true` if the property is deleted, else `false`. |
| 13849 |
* @example |
| 13850 |
* |
| 13851 |
* var object = { 'a': [{ 'b': { 'c': 7 } }] }; |
| 13852 |
* _.unset(object, 'a[0].b.c'); |
| 13853 |
* // => true |
| 13854 |
* |
| 13855 |
* console.log(object); |
| 13856 |
* // => { 'a': [{ 'b': {} }] }; |
| 13857 |
* |
| 13858 |
* _.unset(object, ['a', '0', 'b', 'c']); |
| 13859 |
* // => true |
| 13860 |
* |
| 13861 |
* console.log(object); |
| 13862 |
* // => { 'a': [{ 'b': {} }] }; |
| 13863 |
*/ |
| 13864 |
function unset(object, path) { |
| 13865 |
return object == null ? true : baseUnset(object, path); |
| 13866 |
} |
| 13867 |
|
| 13868 |
/** |
| 13869 |
* This method is like `_.set` except that accepts `updater` to produce the |
| 13870 |
* value to set. Use `_.updateWith` to customize `path` creation. The `updater` |
| 13871 |
* is invoked with one argument: (value). |
| 13872 |
* |
| 13873 |
* **Note:** This method mutates `object`. |
| 13874 |
* |
| 13875 |
* @static |
| 13876 |
* @memberOf _ |
| 13877 |
* @since 4.6.0 |
| 13878 |
* @category Object |
| 13879 |
* @param {Object} object The object to modify. |
| 13880 |
* @param {Array|string} path The path of the property to set. |
| 13881 |
* @param {Function} updater The function to produce the updated value. |
| 13882 |
* @returns {Object} Returns `object`. |
| 13883 |
* @example |
| 13884 |
* |
| 13885 |
* var object = { 'a': [{ 'b': { 'c': 3 } }] }; |
| 13886 |
* |
| 13887 |
* _.update(object, 'a[0].b.c', function(n) { return n * n; }); |
| 13888 |
* console.log(object.a[0].b.c); |
| 13889 |
* // => 9 |
| 13890 |
* |
| 13891 |
* _.update(object, 'x[0].y.z', function(n) { return n ? n + 1 : 0; }); |
| 13892 |
* console.log(object.x[0].y.z); |
| 13893 |
* // => 0 |
| 13894 |
*/ |
| 13895 |
function update(object, path, updater) { |
| 13896 |
return object == null ? object : baseUpdate(object, path, castFunction(updater)); |
| 13897 |
} |
| 13898 |
|
| 13899 |
/** |
| 13900 |
* This method is like `_.update` except that it accepts `customizer` which is |
| 13901 |
* invoked to produce the objects of `path`. If `customizer` returns `undefined` |
| 13902 |
* path creation is handled by the method instead. The `customizer` is invoked |
| 13903 |
* with three arguments: (nsValue, key, nsObject). |
| 13904 |
* |
| 13905 |
* **Note:** This method mutates `object`. |
| 13906 |
* |
| 13907 |
* @static |
| 13908 |
* @memberOf _ |
| 13909 |
* @since 4.6.0 |
| 13910 |
* @category Object |
| 13911 |
* @param {Object} object The object to modify. |
| 13912 |
* @param {Array|string} path The path of the property to set. |
| 13913 |
* @param {Function} updater The function to produce the updated value. |
| 13914 |
* @param {Function} [customizer] The function to customize assigned values. |
| 13915 |
* @returns {Object} Returns `object`. |
| 13916 |
* @example |
| 13917 |
* |
| 13918 |
* var object = {}; |
| 13919 |
* |
| 13920 |
* _.updateWith(object, '[0][1]', _.constant('a'), Object); |
| 13921 |
* // => { '0': { '1': 'a' } } |
| 13922 |
*/ |
| 13923 |
function updateWith(object, path, updater, customizer) { |
| 13924 |
customizer = typeof customizer == 'function' ? customizer : undefined; |
| 13925 |
return object == null ? object : baseUpdate(object, path, castFunction(updater), customizer); |
| 13926 |
} |
| 13927 |
|
| 13928 |
/** |
| 13929 |
* Creates an array of the own enumerable string keyed property values of `object`. |
| 13930 |
* |
| 13931 |
* **Note:** Non-object values are coerced to objects. |
| 13932 |
* |
| 13933 |
* @static |
| 13934 |
* @since 0.1.0 |
| 13935 |
* @memberOf _ |
| 13936 |
* @category Object |
| 13937 |
* @param {Object} object The object to query. |
| 13938 |
* @returns {Array} Returns the array of property values. |
| 13939 |
* @example |
| 13940 |
* |
| 13941 |
* function Foo() { |
| 13942 |
* this.a = 1; |
| 13943 |
* this.b = 2; |
| 13944 |
* } |
| 13945 |
* |
| 13946 |
* Foo.prototype.c = 3; |
| 13947 |
* |
| 13948 |
* _.values(new Foo); |
| 13949 |
* // => [1, 2] (iteration order is not guaranteed) |
| 13950 |
* |
| 13951 |
* _.values('hi'); |
| 13952 |
* // => ['h', 'i'] |
| 13953 |
*/ |
| 13954 |
function values(object) { |
| 13955 |
return object == null ? [] : baseValues(object, keys(object)); |
| 13956 |
} |
| 13957 |
|
| 13958 |
/** |
| 13959 |
* Creates an array of the own and inherited enumerable string keyed property |
| 13960 |
* values of `object`. |
| 13961 |
* |
| 13962 |
* **Note:** Non-object values are coerced to objects. |
| 13963 |
* |
| 13964 |
* @static |
| 13965 |
* @memberOf _ |
| 13966 |
* @since 3.0.0 |
| 13967 |
* @category Object |
| 13968 |
* @param {Object} object The object to query. |
| 13969 |
* @returns {Array} Returns the array of property values. |
| 13970 |
* @example |
| 13971 |
* |
| 13972 |
* function Foo() { |
| 13973 |
* this.a = 1; |
| 13974 |
* this.b = 2; |
| 13975 |
* } |
| 13976 |
* |
| 13977 |
* Foo.prototype.c = 3; |
| 13978 |
* |
| 13979 |
* _.valuesIn(new Foo); |
| 13980 |
* // => [1, 2, 3] (iteration order is not guaranteed) |
| 13981 |
*/ |
| 13982 |
function valuesIn(object) { |
| 13983 |
return object == null ? [] : baseValues(object, keysIn(object)); |
| 13984 |
} |
| 13985 |
|
| 13986 |
/*------------------------------------------------------------------------*/ |
| 13987 |
|
| 13988 |
/** |
| 13989 |
* Clamps `number` within the inclusive `lower` and `upper` bounds. |
| 13990 |
* |
| 13991 |
* @static |
| 13992 |
* @memberOf _ |
| 13993 |
* @since 4.0.0 |
| 13994 |
* @category Number |
| 13995 |
* @param {number} number The number to clamp. |
| 13996 |
* @param {number} [lower] The lower bound. |
| 13997 |
* @param {number} upper The upper bound. |
| 13998 |
* @returns {number} Returns the clamped number. |
| 13999 |
* @example |
| 14000 |
* |
| 14001 |
* _.clamp(-10, -5, 5); |
| 14002 |
* // => -5 |
| 14003 |
* |
| 14004 |
* _.clamp(10, -5, 5); |
| 14005 |
* // => 5 |
| 14006 |
*/ |
| 14007 |
function clamp(number, lower, upper) { |
| 14008 |
if (upper === undefined) { |
| 14009 |
upper = lower; |
| 14010 |
lower = undefined; |
| 14011 |
} |
| 14012 |
if (upper !== undefined) { |
| 14013 |
upper = toNumber(upper); |
| 14014 |
upper = upper === upper ? upper : 0; |
| 14015 |
} |
| 14016 |
if (lower !== undefined) { |
| 14017 |
lower = toNumber(lower); |
| 14018 |
lower = lower === lower ? lower : 0; |
| 14019 |
} |
| 14020 |
return baseClamp(toNumber(number), lower, upper); |
| 14021 |
} |
| 14022 |
|
| 14023 |
/** |
| 14024 |
* Checks if `n` is between `start` and up to, but not including, `end`. If |
| 14025 |
* `end` is not specified, it's set to `start` with `start` then set to `0`. |
| 14026 |
* If `start` is greater than `end` the params are swapped to support |
| 14027 |
* negative ranges. |
| 14028 |
* |
| 14029 |
* @static |
| 14030 |
* @memberOf _ |
| 14031 |
* @since 3.3.0 |
| 14032 |
* @category Number |
| 14033 |
* @param {number} number The number to check. |
| 14034 |
* @param {number} [start=0] The start of the range. |
| 14035 |
* @param {number} end The end of the range. |
| 14036 |
* @returns {boolean} Returns `true` if `number` is in the range, else `false`. |
| 14037 |
* @see _.range, _.rangeRight |
| 14038 |
* @example |
| 14039 |
* |
| 14040 |
* _.inRange(3, 2, 4); |
| 14041 |
* // => true |
| 14042 |
* |
| 14043 |
* _.inRange(4, 8); |
| 14044 |
* // => true |
| 14045 |
* |
| 14046 |
* _.inRange(4, 2); |
| 14047 |
* // => false |
| 14048 |
* |
| 14049 |
* _.inRange(2, 2); |
| 14050 |
* // => false |
| 14051 |
* |
| 14052 |
* _.inRange(1.2, 2); |
| 14053 |
* // => true |
| 14054 |
* |
| 14055 |
* _.inRange(5.2, 4); |
| 14056 |
* // => false |
| 14057 |
* |
| 14058 |
* _.inRange(-3, -2, -6); |
| 14059 |
* // => true |
| 14060 |
*/ |
| 14061 |
function inRange(number, start, end) { |
| 14062 |
start = toFinite(start); |
| 14063 |
if (end === undefined) { |
| 14064 |
end = start; |
| 14065 |
start = 0; |
| 14066 |
} else { |
| 14067 |
end = toFinite(end); |
| 14068 |
} |
| 14069 |
number = toNumber(number); |
| 14070 |
return baseInRange(number, start, end); |
| 14071 |
} |
| 14072 |
|
| 14073 |
/** |
| 14074 |
* Produces a random number between the inclusive `lower` and `upper` bounds. |
| 14075 |
* If only one argument is provided a number between `0` and the given number |
| 14076 |
* is returned. If `floating` is `true`, or either `lower` or `upper` are |
| 14077 |
* floats, a floating-point number is returned instead of an integer. |
| 14078 |
* |
| 14079 |
* **Note:** JavaScript follows the IEEE-754 standard for resolving |
| 14080 |
* floating-point values which can produce unexpected results. |
| 14081 |
* |
| 14082 |
* @static |
| 14083 |
* @memberOf _ |
| 14084 |
* @since 0.7.0 |
| 14085 |
* @category Number |
| 14086 |
* @param {number} [lower=0] The lower bound. |
| 14087 |
* @param {number} [upper=1] The upper bound. |
| 14088 |
* @param {boolean} [floating] Specify returning a floating-point number. |
| 14089 |
* @returns {number} Returns the random number. |
| 14090 |
* @example |
| 14091 |
* |
| 14092 |
* _.random(0, 5); |
| 14093 |
* // => an integer between 0 and 5 |
| 14094 |
* |
| 14095 |
* _.random(5); |
| 14096 |
* // => also an integer between 0 and 5 |
| 14097 |
* |
| 14098 |
* _.random(5, true); |
| 14099 |
* // => a floating-point number between 0 and 5 |
| 14100 |
* |
| 14101 |
* _.random(1.2, 5.2); |
| 14102 |
* // => a floating-point number between 1.2 and 5.2 |
| 14103 |
*/ |
| 14104 |
function random(lower, upper, floating) { |
| 14105 |
if (floating && typeof floating != 'boolean' && isIterateeCall(lower, upper, floating)) { |
| 14106 |
upper = floating = undefined; |
| 14107 |
} |
| 14108 |
if (floating === undefined) { |
| 14109 |
if (typeof upper == 'boolean') { |
| 14110 |
floating = upper; |
| 14111 |
upper = undefined; |
| 14112 |
} |
| 14113 |
else if (typeof lower == 'boolean') { |
| 14114 |
floating = lower; |
| 14115 |
lower = undefined; |
| 14116 |
} |
| 14117 |
} |
| 14118 |
if (lower === undefined && upper === undefined) { |
| 14119 |
lower = 0; |
| 14120 |
upper = 1; |
| 14121 |
} |
| 14122 |
else { |
| 14123 |
lower = toFinite(lower); |
| 14124 |
if (upper === undefined) { |
| 14125 |
upper = lower; |
| 14126 |
lower = 0; |
| 14127 |
} else { |
| 14128 |
upper = toFinite(upper); |
| 14129 |
} |
| 14130 |
} |
| 14131 |
if (lower > upper) { |
| 14132 |
var temp = lower; |
| 14133 |
lower = upper; |
| 14134 |
upper = temp; |
| 14135 |
} |
| 14136 |
if (floating || lower % 1 || upper % 1) { |
| 14137 |
var rand = nativeRandom(); |
| 14138 |
return nativeMin(lower + (rand * (upper - lower + freeParseFloat('1e-' + ((rand + '').length - 1)))), upper); |
| 14139 |
} |
| 14140 |
return baseRandom(lower, upper); |
| 14141 |
} |
| 14142 |
|
| 14143 |
/*------------------------------------------------------------------------*/ |
| 14144 |
|
| 14145 |
/** |
| 14146 |
* Converts `string` to [camel case](https://en.wikipedia.org/wiki/CamelCase). |
| 14147 |
* |
| 14148 |
* @static |
| 14149 |
* @memberOf _ |
| 14150 |
* @since 3.0.0 |
| 14151 |
* @category String |
| 14152 |
* @param {string} [string=''] The string to convert. |
| 14153 |
* @returns {string} Returns the camel cased string. |
| 14154 |
* @example |
| 14155 |
* |
| 14156 |
* _.camelCase('Foo Bar'); |
| 14157 |
* // => 'fooBar' |
| 14158 |
* |
| 14159 |
* _.camelCase('--foo-bar--'); |
| 14160 |
* // => 'fooBar' |
| 14161 |
* |
| 14162 |
* _.camelCase('__FOO_BAR__'); |
| 14163 |
* // => 'fooBar' |
| 14164 |
*/ |
| 14165 |
var camelCase = createCompounder(function(result, word, index) { |
| 14166 |
word = word.toLowerCase(); |
| 14167 |
return result + (index ? capitalize(word) : word); |
| 14168 |
}); |
| 14169 |
|
| 14170 |
/** |
| 14171 |
* Converts the first character of `string` to upper case and the remaining |
| 14172 |
* to lower case. |
| 14173 |
* |
| 14174 |
* @static |
| 14175 |
* @memberOf _ |
| 14176 |
* @since 3.0.0 |
| 14177 |
* @category String |
| 14178 |
* @param {string} [string=''] The string to capitalize. |
| 14179 |
* @returns {string} Returns the capitalized string. |
| 14180 |
* @example |
| 14181 |
* |
| 14182 |
* _.capitalize('FRED'); |
| 14183 |
* // => 'Fred' |
| 14184 |
*/ |
| 14185 |
function capitalize(string) { |
| 14186 |
return upperFirst(toString(string).toLowerCase()); |
| 14187 |
} |
| 14188 |
|
| 14189 |
/** |
| 14190 |
* Deburrs `string` by converting |
| 14191 |
* [Latin-1 Supplement](https://en.wikipedia.org/wiki/Latin-1_Supplement_(Unicode_block)#Character_table) |
| 14192 |
* and [Latin Extended-A](https://en.wikipedia.org/wiki/Latin_Extended-A) |
| 14193 |
* letters to basic Latin letters and removing |
| 14194 |
* [combining diacritical marks](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks). |
| 14195 |
* |
| 14196 |
* @static |
| 14197 |
* @memberOf _ |
| 14198 |
* @since 3.0.0 |
| 14199 |
* @category String |
| 14200 |
* @param {string} [string=''] The string to deburr. |
| 14201 |
* @returns {string} Returns the deburred string. |
| 14202 |
* @example |
| 14203 |
* |
| 14204 |
* _.deburr('déjà vu'); |
| 14205 |
* // => 'deja vu' |
| 14206 |
*/ |
| 14207 |
function deburr(string) { |
| 14208 |
string = toString(string); |
| 14209 |
return string && string.replace(reLatin, deburrLetter).replace(reComboMark, ''); |
| 14210 |
} |
| 14211 |
|
| 14212 |
/** |
| 14213 |
* Checks if `string` ends with the given target string. |
| 14214 |
* |
| 14215 |
* @static |
| 14216 |
* @memberOf _ |
| 14217 |
* @since 3.0.0 |
| 14218 |
* @category String |
| 14219 |
* @param {string} [string=''] The string to inspect. |
| 14220 |
* @param {string} [target] The string to search for. |
| 14221 |
* @param {number} [position=string.length] The position to search up to. |
| 14222 |
* @returns {boolean} Returns `true` if `string` ends with `target`, |
| 14223 |
* else `false`. |
| 14224 |
* @example |
| 14225 |
* |
| 14226 |
* _.endsWith('abc', 'c'); |
| 14227 |
* // => true |
| 14228 |
* |
| 14229 |
* _.endsWith('abc', 'b'); |
| 14230 |
* // => false |
| 14231 |
* |
| 14232 |
* _.endsWith('abc', 'b', 2); |
| 14233 |
* // => true |
| 14234 |
*/ |
| 14235 |
function endsWith(string, target, position) { |
| 14236 |
string = toString(string); |
| 14237 |
target = baseToString(target); |
| 14238 |
|
| 14239 |
var length = string.length; |
| 14240 |
position = position === undefined |
| 14241 |
? length |
| 14242 |
: baseClamp(toInteger(position), 0, length); |
| 14243 |
|
| 14244 |
var end = position; |
| 14245 |
position -= target.length; |
| 14246 |
return position >= 0 && string.slice(position, end) == target; |
| 14247 |
} |
| 14248 |
|
| 14249 |
/** |
| 14250 |
* Converts the characters "&", "<", ">", '"', and "'" in `string` to their |
| 14251 |
* corresponding HTML entities. |
| 14252 |
* |
| 14253 |
* **Note:** No other characters are escaped. To escape additional |
| 14254 |
* characters use a third-party library like [_he_](https://mths.be/he). |
| 14255 |
* |
| 14256 |
* Though the ">" character is escaped for symmetry, characters like |
| 14257 |
* ">" and "/" don't need escaping in HTML and have no special meaning |
| 14258 |
* unless they're part of a tag or unquoted attribute value. See |
| 14259 |
* [Mathias Bynens's article](https://mathiasbynens.be/notes/ambiguous-ampersands) |
| 14260 |
* (under "semi-related fun fact") for more details. |
| 14261 |
* |
| 14262 |
* When working with HTML you should always |
| 14263 |
* [quote attribute values](http://wonko.com/post/html-escaping) to reduce |
| 14264 |
* XSS vectors. |
| 14265 |
* |
| 14266 |
* @static |
| 14267 |
* @since 0.1.0 |
| 14268 |
* @memberOf _ |
| 14269 |
* @category String |
| 14270 |
* @param {string} [string=''] The string to escape. |
| 14271 |
* @returns {string} Returns the escaped string. |
| 14272 |
* @example |
| 14273 |
* |
| 14274 |
* _.escape('fred, barney, & pebbles'); |
| 14275 |
* // => 'fred, barney, & pebbles' |
| 14276 |
*/ |
| 14277 |
function escape(string) { |
| 14278 |
string = toString(string); |
| 14279 |
return (string && reHasUnescapedHtml.test(string)) |
| 14280 |
? string.replace(reUnescapedHtml, escapeHtmlChar) |
| 14281 |
: string; |
| 14282 |
} |
| 14283 |
|
| 14284 |
/** |
| 14285 |
* Escapes the `RegExp` special characters "^", "$", "\", ".", "*", "+", |
| 14286 |
* "?", "(", ")", "[", "]", "{", "}", and "|" in `string`. |
| 14287 |
* |
| 14288 |
* @static |
| 14289 |
* @memberOf _ |
| 14290 |
* @since 3.0.0 |
| 14291 |
* @category String |
| 14292 |
* @param {string} [string=''] The string to escape. |
| 14293 |
* @returns {string} Returns the escaped string. |
| 14294 |
* @example |
| 14295 |
* |
| 14296 |
* _.escapeRegExp('[lodash](https://lodash.com/)'); |
| 14297 |
* // => '\[lodash\]\(https://lodash\.com/\)' |
| 14298 |
*/ |
| 14299 |
function escapeRegExp(string) { |
| 14300 |
string = toString(string); |
| 14301 |
return (string && reHasRegExpChar.test(string)) |
| 14302 |
? string.replace(reRegExpChar, '\\$&') |
| 14303 |
: string; |
| 14304 |
} |
| 14305 |
|
| 14306 |
/** |
| 14307 |
* Converts `string` to |
| 14308 |
* [kebab case](https://en.wikipedia.org/wiki/Letter_case#Special_case_styles). |
| 14309 |
* |
| 14310 |
* @static |
| 14311 |
* @memberOf _ |
| 14312 |
* @since 3.0.0 |
| 14313 |
* @category String |
| 14314 |
* @param {string} [string=''] The string to convert. |
| 14315 |
* @returns {string} Returns the kebab cased string. |
| 14316 |
* @example |
| 14317 |
* |
| 14318 |
* _.kebabCase('Foo Bar'); |
| 14319 |
* // => 'foo-bar' |
| 14320 |
* |
| 14321 |
* _.kebabCase('fooBar'); |
| 14322 |
* // => 'foo-bar' |
| 14323 |
* |
| 14324 |
* _.kebabCase('__FOO_BAR__'); |
| 14325 |
* // => 'foo-bar' |
| 14326 |
*/ |
| 14327 |
var kebabCase = createCompounder(function(result, word, index) { |
| 14328 |
return result + (index ? '-' : '') + word.toLowerCase(); |
| 14329 |
}); |
| 14330 |
|
| 14331 |
/** |
| 14332 |
* Converts `string`, as space separated words, to lower case. |
| 14333 |
* |
| 14334 |
* @static |
| 14335 |
* @memberOf _ |
| 14336 |
* @since 4.0.0 |
| 14337 |
* @category String |
| 14338 |
* @param {string} [string=''] The string to convert. |
| 14339 |
* @returns {string} Returns the lower cased string. |
| 14340 |
* @example |
| 14341 |
* |
| 14342 |
* _.lowerCase('--Foo-Bar--'); |
| 14343 |
* // => 'foo bar' |
| 14344 |
* |
| 14345 |
* _.lowerCase('fooBar'); |
| 14346 |
* // => 'foo bar' |
| 14347 |
* |
| 14348 |
* _.lowerCase('__FOO_BAR__'); |
| 14349 |
* // => 'foo bar' |
| 14350 |
*/ |
| 14351 |
var lowerCase = createCompounder(function(result, word, index) { |
| 14352 |
return result + (index ? ' ' : '') + word.toLowerCase(); |
| 14353 |
}); |
| 14354 |
|
| 14355 |
/** |
| 14356 |
* Converts the first character of `string` to lower case. |
| 14357 |
* |
| 14358 |
* @static |
| 14359 |
* @memberOf _ |
| 14360 |
* @since 4.0.0 |
| 14361 |
* @category String |
| 14362 |
* @param {string} [string=''] The string to convert. |
| 14363 |
* @returns {string} Returns the converted string. |
| 14364 |
* @example |
| 14365 |
* |
| 14366 |
* _.lowerFirst('Fred'); |
| 14367 |
* // => 'fred' |
| 14368 |
* |
| 14369 |
* _.lowerFirst('FRED'); |
| 14370 |
* // => 'fRED' |
| 14371 |
*/ |
| 14372 |
var lowerFirst = createCaseFirst('toLowerCase'); |
| 14373 |
|
| 14374 |
/** |
| 14375 |
* Pads `string` on the left and right sides if it's shorter than `length`. |
| 14376 |
* Padding characters are truncated if they can't be evenly divided by `length`. |
| 14377 |
* |
| 14378 |
* @static |
| 14379 |
* @memberOf _ |
| 14380 |
* @since 3.0.0 |
| 14381 |
* @category String |
| 14382 |
* @param {string} [string=''] The string to pad. |
| 14383 |
* @param {number} [length=0] The padding length. |
| 14384 |
* @param {string} [chars=' '] The string used as padding. |
| 14385 |
* @returns {string} Returns the padded string. |
| 14386 |
* @example |
| 14387 |
* |
| 14388 |
* _.pad('abc', 8); |
| 14389 |
* // => ' abc ' |
| 14390 |
* |
| 14391 |
* _.pad('abc', 8, '_-'); |
| 14392 |
* // => '_-abc_-_' |
| 14393 |
* |
| 14394 |
* _.pad('abc', 3); |
| 14395 |
* // => 'abc' |
| 14396 |
*/ |
| 14397 |
function pad(string, length, chars) { |
| 14398 |
string = toString(string); |
| 14399 |
length = toInteger(length); |
| 14400 |
|
| 14401 |
var strLength = length ? stringSize(string) : 0; |
| 14402 |
if (!length || strLength >= length) { |
| 14403 |
return string; |
| 14404 |
} |
| 14405 |
var mid = (length - strLength) / 2; |
| 14406 |
return ( |
| 14407 |
createPadding(nativeFloor(mid), chars) + |
| 14408 |
string + |
| 14409 |
createPadding(nativeCeil(mid), chars) |
| 14410 |
); |
| 14411 |
} |
| 14412 |
|
| 14413 |
/** |
| 14414 |
* Pads `string` on the right side if it's shorter than `length`. Padding |
| 14415 |
* characters are truncated if they exceed `length`. |
| 14416 |
* |
| 14417 |
* @static |
| 14418 |
* @memberOf _ |
| 14419 |
* @since 4.0.0 |
| 14420 |
* @category String |
| 14421 |
* @param {string} [string=''] The string to pad. |
| 14422 |
* @param {number} [length=0] The padding length. |
| 14423 |
* @param {string} [chars=' '] The string used as padding. |
| 14424 |
* @returns {string} Returns the padded string. |
| 14425 |
* @example |
| 14426 |
* |
| 14427 |
* _.padEnd('abc', 6); |
| 14428 |
* // => 'abc ' |
| 14429 |
* |
| 14430 |
* _.padEnd('abc', 6, '_-'); |
| 14431 |
* // => 'abc_-_' |
| 14432 |
* |
| 14433 |
* _.padEnd('abc', 3); |
| 14434 |
* // => 'abc' |
| 14435 |
*/ |
| 14436 |
function padEnd(string, length, chars) { |
| 14437 |
string = toString(string); |
| 14438 |
length = toInteger(length); |
| 14439 |
|
| 14440 |
var strLength = length ? stringSize(string) : 0; |
| 14441 |
return (length && strLength < length) |
| 14442 |
? (string + createPadding(length - strLength, chars)) |
| 14443 |
: string; |
| 14444 |
} |
| 14445 |
|
| 14446 |
/** |
| 14447 |
* Pads `string` on the left side if it's shorter than `length`. Padding |
| 14448 |
* characters are truncated if they exceed `length`. |
| 14449 |
* |
| 14450 |
* @static |
| 14451 |
* @memberOf _ |
| 14452 |
* @since 4.0.0 |
| 14453 |
* @category String |
| 14454 |
* @param {string} [string=''] The string to pad. |
| 14455 |
* @param {number} [length=0] The padding length. |
| 14456 |
* @param {string} [chars=' '] The string used as padding. |
| 14457 |
* @returns {string} Returns the padded string. |
| 14458 |
* @example |
| 14459 |
* |
| 14460 |
* _.padStart('abc', 6); |
| 14461 |
* // => ' abc' |
| 14462 |
* |
| 14463 |
* _.padStart('abc', 6, '_-'); |
| 14464 |
* // => '_-_abc' |
| 14465 |
* |
| 14466 |
* _.padStart('abc', 3); |
| 14467 |
* // => 'abc' |
| 14468 |
*/ |
| 14469 |
function padStart(string, length, chars) { |
| 14470 |
string = toString(string); |
| 14471 |
length = toInteger(length); |
| 14472 |
|
| 14473 |
var strLength = length ? stringSize(string) : 0; |
| 14474 |
return (length && strLength < length) |
| 14475 |
? (createPadding(length - strLength, chars) + string) |
| 14476 |
: string; |
| 14477 |
} |
| 14478 |
|
| 14479 |
/** |
| 14480 |
* Converts `string` to an integer of the specified radix. If `radix` is |
| 14481 |
* `undefined` or `0`, a `radix` of `10` is used unless `value` is a |
| 14482 |
* hexadecimal, in which case a `radix` of `16` is used. |
| 14483 |
* |
| 14484 |
* **Note:** This method aligns with the |
| 14485 |
* [ES5 implementation](https://es5.github.io/#x15.1.2.2) of `parseInt`. |
| 14486 |
* |
| 14487 |
* @static |
| 14488 |
* @memberOf _ |
| 14489 |
* @since 1.1.0 |
| 14490 |
* @category String |
| 14491 |
* @param {string} string The string to convert. |
| 14492 |
* @param {number} [radix=10] The radix to interpret `value` by. |
| 14493 |
* @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. |
| 14494 |
* @returns {number} Returns the converted integer. |
| 14495 |
* @example |
| 14496 |
* |
| 14497 |
* _.parseInt('08'); |
| 14498 |
* // => 8 |
| 14499 |
* |
| 14500 |
* _.map(['6', '08', '10'], _.parseInt); |
| 14501 |
* // => [6, 8, 10] |
| 14502 |
*/ |
| 14503 |
function parseInt(string, radix, guard) { |
| 14504 |
if (guard || radix == null) { |
| 14505 |
radix = 0; |
| 14506 |
} else if (radix) { |
| 14507 |
radix = +radix; |
| 14508 |
} |
| 14509 |
return nativeParseInt(toString(string).replace(reTrimStart, ''), radix || 0); |
| 14510 |
} |
| 14511 |
|
| 14512 |
/** |
| 14513 |
* Repeats the given string `n` times. |
| 14514 |
* |
| 14515 |
* @static |
| 14516 |
* @memberOf _ |
| 14517 |
* @since 3.0.0 |
| 14518 |
* @category String |
| 14519 |
* @param {string} [string=''] The string to repeat. |
| 14520 |
* @param {number} [n=1] The number of times to repeat the string. |
| 14521 |
* @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. |
| 14522 |
* @returns {string} Returns the repeated string. |
| 14523 |
* @example |
| 14524 |
* |
| 14525 |
* _.repeat('*', 3); |
| 14526 |
* // => '***' |
| 14527 |
* |
| 14528 |
* _.repeat('abc', 2); |
| 14529 |
* // => 'abcabc' |
| 14530 |
* |
| 14531 |
* _.repeat('abc', 0); |
| 14532 |
* // => '' |
| 14533 |
*/ |
| 14534 |
function repeat(string, n, guard) { |
| 14535 |
if ((guard ? isIterateeCall(string, n, guard) : n === undefined)) { |
| 14536 |
n = 1; |
| 14537 |
} else { |
| 14538 |
n = toInteger(n); |
| 14539 |
} |
| 14540 |
return baseRepeat(toString(string), n); |
| 14541 |
} |
| 14542 |
|
| 14543 |
/** |
| 14544 |
* Replaces matches for `pattern` in `string` with `replacement`. |
| 14545 |
* |
| 14546 |
* **Note:** This method is based on |
| 14547 |
* [`String#replace`](https://mdn.io/String/replace). |
| 14548 |
* |
| 14549 |
* @static |
| 14550 |
* @memberOf _ |
| 14551 |
* @since 4.0.0 |
| 14552 |
* @category String |
| 14553 |
* @param {string} [string=''] The string to modify. |
| 14554 |
* @param {RegExp|string} pattern The pattern to replace. |
| 14555 |
* @param {Function|string} replacement The match replacement. |
| 14556 |
* @returns {string} Returns the modified string. |
| 14557 |
* @example |
| 14558 |
* |
| 14559 |
* _.replace('Hi Fred', 'Fred', 'Barney'); |
| 14560 |
* // => 'Hi Barney' |
| 14561 |
*/ |
| 14562 |
function replace() { |
| 14563 |
var args = arguments, |
| 14564 |
string = toString(args[0]); |
| 14565 |
|
| 14566 |
return args.length < 3 ? string : string.replace(args[1], args[2]); |
| 14567 |
} |
| 14568 |
|
| 14569 |
/** |
| 14570 |
* Converts `string` to |
| 14571 |
* [snake case](https://en.wikipedia.org/wiki/Snake_case). |
| 14572 |
* |
| 14573 |
* @static |
| 14574 |
* @memberOf _ |
| 14575 |
* @since 3.0.0 |
| 14576 |
* @category String |
| 14577 |
* @param {string} [string=''] The string to convert. |
| 14578 |
* @returns {string} Returns the snake cased string. |
| 14579 |
* @example |
| 14580 |
* |
| 14581 |
* _.snakeCase('Foo Bar'); |
| 14582 |
* // => 'foo_bar' |
| 14583 |
* |
| 14584 |
* _.snakeCase('fooBar'); |
| 14585 |
* // => 'foo_bar' |
| 14586 |
* |
| 14587 |
* _.snakeCase('--FOO-BAR--'); |
| 14588 |
* // => 'foo_bar' |
| 14589 |
*/ |
| 14590 |
var snakeCase = createCompounder(function(result, word, index) { |
| 14591 |
return result + (index ? '_' : '') + word.toLowerCase(); |
| 14592 |
}); |
| 14593 |
|
| 14594 |
/** |
| 14595 |
* Splits `string` by `separator`. |
| 14596 |
* |
| 14597 |
* **Note:** This method is based on |
| 14598 |
* [`String#split`](https://mdn.io/String/split). |
| 14599 |
* |
| 14600 |
* @static |
| 14601 |
* @memberOf _ |
| 14602 |
* @since 4.0.0 |
| 14603 |
* @category String |
| 14604 |
* @param {string} [string=''] The string to split. |
| 14605 |
* @param {RegExp|string} separator The separator pattern to split by. |
| 14606 |
* @param {number} [limit] The length to truncate results to. |
| 14607 |
* @returns {Array} Returns the string segments. |
| 14608 |
* @example |
| 14609 |
* |
| 14610 |
* _.split('a-b-c', '-', 2); |
| 14611 |
* // => ['a', 'b'] |
| 14612 |
*/ |
| 14613 |
function split(string, separator, limit) { |
| 14614 |
if (limit && typeof limit != 'number' && isIterateeCall(string, separator, limit)) { |
| 14615 |
separator = limit = undefined; |
| 14616 |
} |
| 14617 |
limit = limit === undefined ? MAX_ARRAY_LENGTH : limit >>> 0; |
| 14618 |
if (!limit) { |
| 14619 |
return []; |
| 14620 |
} |
| 14621 |
string = toString(string); |
| 14622 |
if (string && ( |
| 14623 |
typeof separator == 'string' || |
| 14624 |
(separator != null && !isRegExp(separator)) |
| 14625 |
)) { |
| 14626 |
separator = baseToString(separator); |
| 14627 |
if (!separator && hasUnicode(string)) { |
| 14628 |
return castSlice(stringToArray(string), 0, limit); |
| 14629 |
} |
| 14630 |
} |
| 14631 |
return string.split(separator, limit); |
| 14632 |
} |
| 14633 |
|
| 14634 |
/** |
| 14635 |
* Converts `string` to |
| 14636 |
* [start case](https://en.wikipedia.org/wiki/Letter_case#Stylistic_or_specialised_usage). |
| 14637 |
* |
| 14638 |
* @static |
| 14639 |
* @memberOf _ |
| 14640 |
* @since 3.1.0 |
| 14641 |
* @category String |
| 14642 |
* @param {string} [string=''] The string to convert. |
| 14643 |
* @returns {string} Returns the start cased string. |
| 14644 |
* @example |
| 14645 |
* |
| 14646 |
* _.startCase('--foo-bar--'); |
| 14647 |
* // => 'Foo Bar' |
| 14648 |
* |
| 14649 |
* _.startCase('fooBar'); |
| 14650 |
* // => 'Foo Bar' |
| 14651 |
* |
| 14652 |
* _.startCase('__FOO_BAR__'); |
| 14653 |
* // => 'FOO BAR' |
| 14654 |
*/ |
| 14655 |
var startCase = createCompounder(function(result, word, index) { |
| 14656 |
return result + (index ? ' ' : '') + upperFirst(word); |
| 14657 |
}); |
| 14658 |
|
| 14659 |
/** |
| 14660 |
* Checks if `string` starts with the given target string. |
| 14661 |
* |
| 14662 |
* @static |
| 14663 |
* @memberOf _ |
| 14664 |
* @since 3.0.0 |
| 14665 |
* @category String |
| 14666 |
* @param {string} [string=''] The string to inspect. |
| 14667 |
* @param {string} [target] The string to search for. |
| 14668 |
* @param {number} [position=0] The position to search from. |
| 14669 |
* @returns {boolean} Returns `true` if `string` starts with `target`, |
| 14670 |
* else `false`. |
| 14671 |
* @example |
| 14672 |
* |
| 14673 |
* _.startsWith('abc', 'a'); |
| 14674 |
* // => true |
| 14675 |
* |
| 14676 |
* _.startsWith('abc', 'b'); |
| 14677 |
* // => false |
| 14678 |
* |
| 14679 |
* _.startsWith('abc', 'b', 1); |
| 14680 |
* // => true |
| 14681 |
*/ |
| 14682 |
function startsWith(string, target, position) { |
| 14683 |
string = toString(string); |
| 14684 |
position = position == null |
| 14685 |
? 0 |
| 14686 |
: baseClamp(toInteger(position), 0, string.length); |
| 14687 |
|
| 14688 |
target = baseToString(target); |
| 14689 |
return string.slice(position, position + target.length) == target; |
| 14690 |
} |
| 14691 |
|
| 14692 |
/** |
| 14693 |
* Creates a compiled template function that can interpolate data properties |
| 14694 |
* in "interpolate" delimiters, HTML-escape interpolated data properties in |
| 14695 |
* "escape" delimiters, and execute JavaScript in "evaluate" delimiters. Data |
| 14696 |
* properties may be accessed as free variables in the template. If a setting |
| 14697 |
* object is given, it takes precedence over `_.templateSettings` values. |
| 14698 |
* |
| 14699 |
* **Note:** In the development build `_.template` utilizes |
| 14700 |
* [sourceURLs](http://www.html5rocks.com/en/tutorials/developertools/sourcemaps/#toc-sourceurl) |
| 14701 |
* for easier debugging. |
| 14702 |
* |
| 14703 |
* For more information on precompiling templates see |
| 14704 |
* [lodash's custom builds documentation](https://lodash.com/custom-builds). |
| 14705 |
* |
| 14706 |
* For more information on Chrome extension sandboxes see |
| 14707 |
* [Chrome's extensions documentation](https://developer.chrome.com/extensions/sandboxingEval). |
| 14708 |
* |
| 14709 |
* @static |
| 14710 |
* @since 0.1.0 |
| 14711 |
* @memberOf _ |
| 14712 |
* @category String |
| 14713 |
* @param {string} [string=''] The template string. |
| 14714 |
* @param {Object} [options={}] The options object. |
| 14715 |
* @param {RegExp} [options.escape=_.templateSettings.escape] |
| 14716 |
* The HTML "escape" delimiter. |
| 14717 |
* @param {RegExp} [options.evaluate=_.templateSettings.evaluate] |
| 14718 |
* The "evaluate" delimiter. |
| 14719 |
* @param {Object} [options.imports=_.templateSettings.imports] |
| 14720 |
* An object to import into the template as free variables. |
| 14721 |
* @param {RegExp} [options.interpolate=_.templateSettings.interpolate] |
| 14722 |
* The "interpolate" delimiter. |
| 14723 |
* @param {string} [options.sourceURL='lodash.templateSources[n]'] |
| 14724 |
* The sourceURL of the compiled template. |
| 14725 |
* @param {string} [options.variable='obj'] |
| 14726 |
* The data object variable name. |
| 14727 |
* @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. |
| 14728 |
* @returns {Function} Returns the compiled template function. |
| 14729 |
* @example |
| 14730 |
* |
| 14731 |
* // Use the "interpolate" delimiter to create a compiled template. |
| 14732 |
* var compiled = _.template('hello <%= user %>!'); |
| 14733 |
* compiled({ 'user': 'fred' }); |
| 14734 |
* // => 'hello fred!' |
| 14735 |
* |
| 14736 |
* // Use the HTML "escape" delimiter to escape data property values. |
| 14737 |
* var compiled = _.template('<b><%- value %></b>'); |
| 14738 |
* compiled({ 'value': '<script>' }); |
| 14739 |
* // => '<b><script></b>' |
| 14740 |
* |
| 14741 |
* // Use the "evaluate" delimiter to execute JavaScript and generate HTML. |
| 14742 |
* var compiled = _.template('<% _.forEach(users, function(user) { %><li><%- user %></li><% }); %>'); |
| 14743 |
* compiled({ 'users': ['fred', 'barney'] }); |
| 14744 |
* // => '<li>fred</li><li>barney</li>' |
| 14745 |
* |
| 14746 |
* // Use the internal `print` function in "evaluate" delimiters. |
| 14747 |
* var compiled = _.template('<% print("hello " + user); %>!'); |
| 14748 |
* compiled({ 'user': 'barney' }); |
| 14749 |
* // => 'hello barney!' |
| 14750 |
* |
| 14751 |
* // Use the ES template literal delimiter as an "interpolate" delimiter. |
| 14752 |
* // Disable support by replacing the "interpolate" delimiter. |
| 14753 |
* var compiled = _.template('hello ${ user }!'); |
| 14754 |
* compiled({ 'user': 'pebbles' }); |
| 14755 |
* // => 'hello pebbles!' |
| 14756 |
* |
| 14757 |
* // Use backslashes to treat delimiters as plain text. |
| 14758 |
* var compiled = _.template('<%= "\\<%- value %\\>" %>'); |
| 14759 |
* compiled({ 'value': 'ignored' }); |
| 14760 |
* // => '<%- value %>' |
| 14761 |
* |
| 14762 |
* // Use the `imports` option to import `jQuery` as `jq`. |
| 14763 |
* var text = '<% jq.each(users, function(user) { %><li><%- user %></li><% }); %>'; |
| 14764 |
* var compiled = _.template(text, { 'imports': { 'jq': jQuery } }); |
| 14765 |
* compiled({ 'users': ['fred', 'barney'] }); |
| 14766 |
* // => '<li>fred</li><li>barney</li>' |
| 14767 |
* |
| 14768 |
* // Use the `sourceURL` option to specify a custom sourceURL for the template. |
| 14769 |
* var compiled = _.template('hello <%= user %>!', { 'sourceURL': '/basic/greeting.jst' }); |
| 14770 |
* compiled(data); |
| 14771 |
* // => Find the source of "greeting.jst" under the Sources tab or Resources panel of the web inspector. |
| 14772 |
* |
| 14773 |
* // Use the `variable` option to ensure a with-statement isn't used in the compiled template. |
| 14774 |
* var compiled = _.template('hi <%= data.user %>!', { 'variable': 'data' }); |
| 14775 |
* compiled.source; |
| 14776 |
* // => function(data) { |
| 14777 |
* // var __t, __p = ''; |
| 14778 |
* // __p += 'hi ' + ((__t = ( data.user )) == null ? '' : __t) + '!'; |
| 14779 |
* // return __p; |
| 14780 |
* // } |
| 14781 |
* |
| 14782 |
* // Use custom template delimiters. |
| 14783 |
* _.templateSettings.interpolate = /{{([\s\S]+?)}}/g; |
| 14784 |
* var compiled = _.template('hello {{ user }}!'); |
| 14785 |
* compiled({ 'user': 'mustache' }); |
| 14786 |
* // => 'hello mustache!' |
| 14787 |
* |
| 14788 |
* // Use the `source` property to inline compiled templates for meaningful |
| 14789 |
* // line numbers in error messages and stack traces. |
| 14790 |
* fs.writeFileSync(path.join(process.cwd(), 'jst.js'), '\ |
| 14791 |
* var JST = {\ |
| 14792 |
* "main": ' + _.template(mainText).source + '\ |
| 14793 |
* };\ |
| 14794 |
* '); |
| 14795 |
*/ |
| 14796 |
function template(string, options, guard) { |
| 14797 |
// Based on John Resig's `tmpl` implementation |
| 14798 |
// (http://ejohn.org/blog/javascript-micro-templating/) |
| 14799 |
// and Laura Doktorova's doT.js (https://github.com/olado/doT). |
| 14800 |
var settings = lodash.templateSettings; |
| 14801 |
|
| 14802 |
if (guard && isIterateeCall(string, options, guard)) { |
| 14803 |
options = undefined; |
| 14804 |
} |
| 14805 |
string = toString(string); |
| 14806 |
options = assignInWith({}, options, settings, customDefaultsAssignIn); |
| 14807 |
|
| 14808 |
var imports = assignInWith({}, options.imports, settings.imports, customDefaultsAssignIn), |
| 14809 |
importsKeys = keys(imports), |
| 14810 |
importsValues = baseValues(imports, importsKeys); |
| 14811 |
|
| 14812 |
var isEscaping, |
| 14813 |
isEvaluating, |
| 14814 |
index = 0, |
| 14815 |
interpolate = options.interpolate || reNoMatch, |
| 14816 |
source = "__p += '"; |
| 14817 |
|
| 14818 |
// Compile the regexp to match each delimiter. |
| 14819 |
var reDelimiters = RegExp( |
| 14820 |
(options.escape || reNoMatch).source + '|' + |
| 14821 |
interpolate.source + '|' + |
| 14822 |
(interpolate === reInterpolate ? reEsTemplate : reNoMatch).source + '|' + |
| 14823 |
(options.evaluate || reNoMatch).source + '|$' |
| 14824 |
, 'g'); |
| 14825 |
|
| 14826 |
// Use a sourceURL for easier debugging. |
| 14827 |
// The sourceURL gets injected into the source that's eval-ed, so be careful |
| 14828 |
// to normalize all kinds of whitespace, so e.g. newlines (and unicode versions of it) can't sneak in |
| 14829 |
// and escape the comment, thus injecting code that gets evaled. |
| 14830 |
var sourceURL = '//# sourceURL=' + |
| 14831 |
(hasOwnProperty.call(options, 'sourceURL') |
| 14832 |
? (options.sourceURL + '').replace(/\s/g, ' ') |
| 14833 |
: ('lodash.templateSources[' + (++templateCounter) + ']') |
| 14834 |
) + '\n'; |
| 14835 |
|
| 14836 |
string.replace(reDelimiters, function(match, escapeValue, interpolateValue, esTemplateValue, evaluateValue, offset) { |
| 14837 |
interpolateValue || (interpolateValue = esTemplateValue); |
| 14838 |
|
| 14839 |
// Escape characters that can't be included in string literals. |
| 14840 |
source += string.slice(index, offset).replace(reUnescapedString, escapeStringChar); |
| 14841 |
|
| 14842 |
// Replace delimiters with snippets. |
| 14843 |
if (escapeValue) { |
| 14844 |
isEscaping = true; |
| 14845 |
source += "' +\n__e(" + escapeValue + ") +\n'"; |
| 14846 |
} |
| 14847 |
if (evaluateValue) { |
| 14848 |
isEvaluating = true; |
| 14849 |
source += "';\n" + evaluateValue + ";\n__p += '"; |
| 14850 |
} |
| 14851 |
if (interpolateValue) { |
| 14852 |
source += "' +\n((__t = (" + interpolateValue + ")) == null ? '' : __t) +\n'"; |
| 14853 |
} |
| 14854 |
index = offset + match.length; |
| 14855 |
|
| 14856 |
// The JS engine embedded in Adobe products needs `match` returned in |
| 14857 |
// order to produce the correct `offset` value. |
| 14858 |
return match; |
| 14859 |
}); |
| 14860 |
|
| 14861 |
source += "';\n"; |
| 14862 |
|
| 14863 |
// If `variable` is not specified wrap a with-statement around the generated |
| 14864 |
// code to add the data object to the top of the scope chain. |
| 14865 |
var variable = hasOwnProperty.call(options, 'variable') && options.variable; |
| 14866 |
if (!variable) { |
| 14867 |
source = 'with (obj) {\n' + source + '\n}\n'; |
| 14868 |
} |
| 14869 |
// Cleanup code by stripping empty strings. |
| 14870 |
source = (isEvaluating ? source.replace(reEmptyStringLeading, '') : source) |
| 14871 |
.replace(reEmptyStringMiddle, '$1') |
| 14872 |
.replace(reEmptyStringTrailing, '$1;'); |
| 14873 |
|
| 14874 |
// Frame code as the function body. |
| 14875 |
source = 'function(' + (variable || 'obj') + ') {\n' + |
| 14876 |
(variable |
| 14877 |
? '' |
| 14878 |
: 'obj || (obj = {});\n' |
| 14879 |
) + |
| 14880 |
"var __t, __p = ''" + |
| 14881 |
(isEscaping |
| 14882 |
? ', __e = _.escape' |
| 14883 |
: '' |
| 14884 |
) + |
| 14885 |
(isEvaluating |
| 14886 |
? ', __j = Array.prototype.join;\n' + |
| 14887 |
"function print() { __p += __j.call(arguments, '') }\n" |
| 14888 |
: ';\n' |
| 14889 |
) + |
| 14890 |
source + |
| 14891 |
'return __p\n}'; |
| 14892 |
|
| 14893 |
var result = attempt(function() { |
| 14894 |
return Function(importsKeys, sourceURL + 'return ' + source) |
| 14895 |
.apply(undefined, importsValues); |
| 14896 |
}); |
| 14897 |
|
| 14898 |
// Provide the compiled function's source by its `toString` method or |
| 14899 |
// the `source` property as a convenience for inlining compiled templates. |
| 14900 |
result.source = source; |
| 14901 |
if (isError(result)) { |
| 14902 |
throw result; |
| 14903 |
} |
| 14904 |
return result; |
| 14905 |
} |
| 14906 |
|
| 14907 |
/** |
| 14908 |
* Converts `string`, as a whole, to lower case just like |
| 14909 |
* [String#toLowerCase](https://mdn.io/toLowerCase). |
| 14910 |
* |
| 14911 |
* @static |
| 14912 |
* @memberOf _ |
| 14913 |
* @since 4.0.0 |
| 14914 |
* @category String |
| 14915 |
* @param {string} [string=''] The string to convert. |
| 14916 |
* @returns {string} Returns the lower cased string. |
| 14917 |
* @example |
| 14918 |
* |
| 14919 |
* _.toLower('--Foo-Bar--'); |
| 14920 |
* // => '--foo-bar--' |
| 14921 |
* |
| 14922 |
* _.toLower('fooBar'); |
| 14923 |
* // => 'foobar' |
| 14924 |
* |
| 14925 |
* _.toLower('__FOO_BAR__'); |
| 14926 |
* // => '__foo_bar__' |
| 14927 |
*/ |
| 14928 |
function toLower(value) { |
| 14929 |
return toString(value).toLowerCase(); |
| 14930 |
} |
| 14931 |
|
| 14932 |
/** |
| 14933 |
* Converts `string`, as a whole, to upper case just like |
| 14934 |
* [String#toUpperCase](https://mdn.io/toUpperCase). |
| 14935 |
* |
| 14936 |
* @static |
| 14937 |
* @memberOf _ |
| 14938 |
* @since 4.0.0 |
| 14939 |
* @category String |
| 14940 |
* @param {string} [string=''] The string to convert. |
| 14941 |
* @returns {string} Returns the upper cased string. |
| 14942 |
* @example |
| 14943 |
* |
| 14944 |
* _.toUpper('--foo-bar--'); |
| 14945 |
* // => '--FOO-BAR--' |
| 14946 |
* |
| 14947 |
* _.toUpper('fooBar'); |
| 14948 |
* // => 'FOOBAR' |
| 14949 |
* |
| 14950 |
* _.toUpper('__foo_bar__'); |
| 14951 |
* // => '__FOO_BAR__' |
| 14952 |
*/ |
| 14953 |
function toUpper(value) { |
| 14954 |
return toString(value).toUpperCase(); |
| 14955 |
} |
| 14956 |
|
| 14957 |
/** |
| 14958 |
* Removes leading and trailing whitespace or specified characters from `string`. |
| 14959 |
* |
| 14960 |
* @static |
| 14961 |
* @memberOf _ |
| 14962 |
* @since 3.0.0 |
| 14963 |
* @category String |
| 14964 |
* @param {string} [string=''] The string to trim. |
| 14965 |
* @param {string} [chars=whitespace] The characters to trim. |
| 14966 |
* @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. |
| 14967 |
* @returns {string} Returns the trimmed string. |
| 14968 |
* @example |
| 14969 |
* |
| 14970 |
* _.trim(' abc '); |
| 14971 |
* // => 'abc' |
| 14972 |
* |
| 14973 |
* _.trim('-_-abc-_-', '_-'); |
| 14974 |
* // => 'abc' |
| 14975 |
* |
| 14976 |
* _.map([' foo ', ' bar '], _.trim); |
| 14977 |
* // => ['foo', 'bar'] |
| 14978 |
*/ |
| 14979 |
function trim(string, chars, guard) { |
| 14980 |
string = toString(string); |
| 14981 |
if (string && (guard || chars === undefined)) { |
| 14982 |
return string.replace(reTrim, ''); |
| 14983 |
} |
| 14984 |
if (!string || !(chars = baseToString(chars))) { |
| 14985 |
return string; |
| 14986 |
} |
| 14987 |
var strSymbols = stringToArray(string), |
| 14988 |
chrSymbols = stringToArray(chars), |
| 14989 |
start = charsStartIndex(strSymbols, chrSymbols), |
| 14990 |
end = charsEndIndex(strSymbols, chrSymbols) + 1; |
| 14991 |
|
| 14992 |
return castSlice(strSymbols, start, end).join(''); |
| 14993 |
} |
| 14994 |
|
| 14995 |
/** |
| 14996 |
* Removes trailing whitespace or specified characters from `string`. |
| 14997 |
* |
| 14998 |
* @static |
| 14999 |
* @memberOf _ |
| 15000 |
* @since 4.0.0 |
| 15001 |
* @category String |
| 15002 |
* @param {string} [string=''] The string to trim. |
| 15003 |
* @param {string} [chars=whitespace] The characters to trim. |
| 15004 |
* @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. |
| 15005 |
* @returns {string} Returns the trimmed string. |
| 15006 |
* @example |
| 15007 |
* |
| 15008 |
* _.trimEnd(' abc '); |
| 15009 |
* // => ' abc' |
| 15010 |
* |
| 15011 |
* _.trimEnd('-_-abc-_-', '_-'); |
| 15012 |
* // => '-_-abc' |
| 15013 |
*/ |
| 15014 |
function trimEnd(string, chars, guard) { |
| 15015 |
string = toString(string); |
| 15016 |
if (string && (guard || chars === undefined)) { |
| 15017 |
return string.replace(reTrimEnd, ''); |
| 15018 |
} |
| 15019 |
if (!string || !(chars = baseToString(chars))) { |
| 15020 |
return string; |
| 15021 |
} |
| 15022 |
var strSymbols = stringToArray(string), |
| 15023 |
end = charsEndIndex(strSymbols, stringToArray(chars)) + 1; |
| 15024 |
|
| 15025 |
return castSlice(strSymbols, 0, end).join(''); |
| 15026 |
} |
| 15027 |
|
| 15028 |
/** |
| 15029 |
* Removes leading whitespace or specified characters from `string`. |
| 15030 |
* |
| 15031 |
* @static |
| 15032 |
* @memberOf _ |
| 15033 |
* @since 4.0.0 |
| 15034 |
* @category String |
| 15035 |
* @param {string} [string=''] The string to trim. |
| 15036 |
* @param {string} [chars=whitespace] The characters to trim. |
| 15037 |
* @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. |
| 15038 |
* @returns {string} Returns the trimmed string. |
| 15039 |
* @example |
| 15040 |
* |
| 15041 |
* _.trimStart(' abc '); |
| 15042 |
* // => 'abc ' |
| 15043 |
* |
| 15044 |
* _.trimStart('-_-abc-_-', '_-'); |
| 15045 |
* // => 'abc-_-' |
| 15046 |
*/ |
| 15047 |
function trimStart(string, chars, guard) { |
| 15048 |
string = toString(string); |
| 15049 |
if (string && (guard || chars === undefined)) { |
| 15050 |
return string.replace(reTrimStart, ''); |
| 15051 |
} |
| 15052 |
if (!string || !(chars = baseToString(chars))) { |
| 15053 |
return string; |
| 15054 |
} |
| 15055 |
var strSymbols = stringToArray(string), |
| 15056 |
start = charsStartIndex(strSymbols, stringToArray(chars)); |
| 15057 |
|
| 15058 |
return castSlice(strSymbols, start).join(''); |
| 15059 |
} |
| 15060 |
|
| 15061 |
/** |
| 15062 |
* Truncates `string` if it's longer than the given maximum string length. |
| 15063 |
* The last characters of the truncated string are replaced with the omission |
| 15064 |
* string which defaults to "...". |
| 15065 |
* |
| 15066 |
* @static |
| 15067 |
* @memberOf _ |
| 15068 |
* @since 4.0.0 |
| 15069 |
* @category String |
| 15070 |
* @param {string} [string=''] The string to truncate. |
| 15071 |
* @param {Object} [options={}] The options object. |
| 15072 |
* @param {number} [options.length=30] The maximum string length. |
| 15073 |
* @param {string} [options.omission='...'] The string to indicate text is omitted. |
| 15074 |
* @param {RegExp|string} [options.separator] The separator pattern to truncate to. |
| 15075 |
* @returns {string} Returns the truncated string. |
| 15076 |
* @example |
| 15077 |
* |
| 15078 |
* _.truncate('hi-diddly-ho there, neighborino'); |
| 15079 |
* // => 'hi-diddly-ho there, neighbo...' |
| 15080 |
* |
| 15081 |
* _.truncate('hi-diddly-ho there, neighborino', { |
| 15082 |
* 'length': 24, |
| 15083 |
* 'separator': ' ' |
| 15084 |
* }); |
| 15085 |
* // => 'hi-diddly-ho there,...' |
| 15086 |
* |
| 15087 |
* _.truncate('hi-diddly-ho there, neighborino', { |
| 15088 |
* 'length': 24, |
| 15089 |
* 'separator': /,? +/ |
| 15090 |
* }); |
| 15091 |
* // => 'hi-diddly-ho there...' |
| 15092 |
* |
| 15093 |
* _.truncate('hi-diddly-ho there, neighborino', { |
| 15094 |
* 'omission': ' [...]' |
| 15095 |
* }); |
| 15096 |
* // => 'hi-diddly-ho there, neig [...]' |
| 15097 |
*/ |
| 15098 |
function truncate(string, options) { |
| 15099 |
var length = DEFAULT_TRUNC_LENGTH, |
| 15100 |
omission = DEFAULT_TRUNC_OMISSION; |
| 15101 |
|
| 15102 |
if (isObject(options)) { |
| 15103 |
var separator = 'separator' in options ? options.separator : separator; |
| 15104 |
length = 'length' in options ? toInteger(options.length) : length; |
| 15105 |
omission = 'omission' in options ? baseToString(options.omission) : omission; |
| 15106 |
} |
| 15107 |
string = toString(string); |
| 15108 |
|
| 15109 |
var strLength = string.length; |
| 15110 |
if (hasUnicode(string)) { |
| 15111 |
var strSymbols = stringToArray(string); |
| 15112 |
strLength = strSymbols.length; |
| 15113 |
} |
| 15114 |
if (length >= strLength) { |
| 15115 |
return string; |
| 15116 |
} |
| 15117 |
var end = length - stringSize(omission); |
| 15118 |
if (end < 1) { |
| 15119 |
return omission; |
| 15120 |
} |
| 15121 |
var result = strSymbols |
| 15122 |
? castSlice(strSymbols, 0, end).join('') |
| 15123 |
: string.slice(0, end); |
| 15124 |
|
| 15125 |
if (separator === undefined) { |
| 15126 |
return result + omission; |
| 15127 |
} |
| 15128 |
if (strSymbols) { |
| 15129 |
end += (result.length - end); |
| 15130 |
} |
| 15131 |
if (isRegExp(separator)) { |
| 15132 |
if (string.slice(end).search(separator)) { |
| 15133 |
var match, |
| 15134 |
substring = result; |
| 15135 |
|
| 15136 |
if (!separator.global) { |
| 15137 |
separator = RegExp(separator.source, toString(reFlags.exec(separator)) + 'g'); |
| 15138 |
} |
| 15139 |
separator.lastIndex = 0; |
| 15140 |
while ((match = separator.exec(substring))) { |
| 15141 |
var newEnd = match.index; |
| 15142 |
} |
| 15143 |
result = result.slice(0, newEnd === undefined ? end : newEnd); |
| 15144 |
} |
| 15145 |
} else if (string.indexOf(baseToString(separator), end) != end) { |
| 15146 |
var index = result.lastIndexOf(separator); |
| 15147 |
if (index > -1) { |
| 15148 |
result = result.slice(0, index); |
| 15149 |
} |
| 15150 |
} |
| 15151 |
return result + omission; |
| 15152 |
} |
| 15153 |
|
| 15154 |
/** |
| 15155 |
* The inverse of `_.escape`; this method converts the HTML entities |
| 15156 |
* `&`, `<`, `>`, `"`, and `'` in `string` to |
| 15157 |
* their corresponding characters. |
| 15158 |
* |
| 15159 |
* **Note:** No other HTML entities are unescaped. To unescape additional |
| 15160 |
* HTML entities use a third-party library like [_he_](https://mths.be/he). |
| 15161 |
* |
| 15162 |
* @static |
| 15163 |
* @memberOf _ |
| 15164 |
* @since 0.6.0 |
| 15165 |
* @category String |
| 15166 |
* @param {string} [string=''] The string to unescape. |
| 15167 |
* @returns {string} Returns the unescaped string. |
| 15168 |
* @example |
| 15169 |
* |
| 15170 |
* _.unescape('fred, barney, & pebbles'); |
| 15171 |
* // => 'fred, barney, & pebbles' |
| 15172 |
*/ |
| 15173 |
function unescape(string) { |
| 15174 |
string = toString(string); |
| 15175 |
return (string && reHasEscapedHtml.test(string)) |
| 15176 |
? string.replace(reEscapedHtml, unescapeHtmlChar) |
| 15177 |
: string; |
| 15178 |
} |
| 15179 |
|
| 15180 |
/** |
| 15181 |
* Converts `string`, as space separated words, to upper case. |
| 15182 |
* |
| 15183 |
* @static |
| 15184 |
* @memberOf _ |
| 15185 |
* @since 4.0.0 |
| 15186 |
* @category String |
| 15187 |
* @param {string} [string=''] The string to convert. |
| 15188 |
* @returns {string} Returns the upper cased string. |
| 15189 |
* @example |
| 15190 |
* |
| 15191 |
* _.upperCase('--foo-bar'); |
| 15192 |
* // => 'FOO BAR' |
| 15193 |
* |
| 15194 |
* _.upperCase('fooBar'); |
| 15195 |
* // => 'FOO BAR' |
| 15196 |
* |
| 15197 |
* _.upperCase('__foo_bar__'); |
| 15198 |
* // => 'FOO BAR' |
| 15199 |
*/ |
| 15200 |
var upperCase = createCompounder(function(result, word, index) { |
| 15201 |
return result + (index ? ' ' : '') + word.toUpperCase(); |
| 15202 |
}); |
| 15203 |
|
| 15204 |
/** |
| 15205 |
* Converts the first character of `string` to upper case. |
| 15206 |
* |
| 15207 |
* @static |
| 15208 |
* @memberOf _ |
| 15209 |
* @since 4.0.0 |
| 15210 |
* @category String |
| 15211 |
* @param {string} [string=''] The string to convert. |
| 15212 |
* @returns {string} Returns the converted string. |
| 15213 |
* @example |
| 15214 |
* |
| 15215 |
* _.upperFirst('fred'); |
| 15216 |
* // => 'Fred' |
| 15217 |
* |
| 15218 |
* _.upperFirst('FRED'); |
| 15219 |
* // => 'FRED' |
| 15220 |
*/ |
| 15221 |
var upperFirst = createCaseFirst('toUpperCase'); |
| 15222 |
|
| 15223 |
/** |
| 15224 |
* Splits `string` into an array of its words. |
| 15225 |
* |
| 15226 |
* @static |
| 15227 |
* @memberOf _ |
| 15228 |
* @since 3.0.0 |
| 15229 |
* @category String |
| 15230 |
* @param {string} [string=''] The string to inspect. |
| 15231 |
* @param {RegExp|string} [pattern] The pattern to match words. |
| 15232 |
* @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. |
| 15233 |
* @returns {Array} Returns the words of `string`. |
| 15234 |
* @example |
| 15235 |
* |
| 15236 |
* _.words('fred, barney, & pebbles'); |
| 15237 |
* // => ['fred', 'barney', 'pebbles'] |
| 15238 |
* |
| 15239 |
* _.words('fred, barney, & pebbles', /[^, ]+/g); |
| 15240 |
* // => ['fred', 'barney', '&', 'pebbles'] |
| 15241 |
*/ |
| 15242 |
function words(string, pattern, guard) { |
| 15243 |
string = toString(string); |
| 15244 |
pattern = guard ? undefined : pattern; |
| 15245 |
|
| 15246 |
if (pattern === undefined) { |
| 15247 |
return hasUnicodeWord(string) ? unicodeWords(string) : asciiWords(string); |
| 15248 |
} |
| 15249 |
return string.match(pattern) || []; |
| 15250 |
} |
| 15251 |
|
| 15252 |
/*------------------------------------------------------------------------*/ |
| 15253 |
|
| 15254 |
/** |
| 15255 |
* Attempts to invoke `func`, returning either the result or the caught error |
| 15256 |
* object. Any additional arguments are provided to `func` when it's invoked. |
| 15257 |
* |
| 15258 |
* @static |
| 15259 |
* @memberOf _ |
| 15260 |
* @since 3.0.0 |
| 15261 |
* @category Util |
| 15262 |
* @param {Function} func The function to attempt. |
| 15263 |
* @param {...*} [args] The arguments to invoke `func` with. |
| 15264 |
* @returns {*} Returns the `func` result or error object. |
| 15265 |
* @example |
| 15266 |
* |
| 15267 |
* // Avoid throwing errors for invalid selectors. |
| 15268 |
* var elements = _.attempt(function(selector) { |
| 15269 |
* return document.querySelectorAll(selector); |
| 15270 |
* }, '>_>'); |
| 15271 |
* |
| 15272 |
* if (_.isError(elements)) { |
| 15273 |
* elements = []; |
| 15274 |
* } |
| 15275 |
*/ |
| 15276 |
var attempt = baseRest(function(func, args) { |
| 15277 |
try { |
| 15278 |
return apply(func, undefined, args); |
| 15279 |
} catch (e) { |
| 15280 |
return isError(e) ? e : new Error(e); |
| 15281 |
} |
| 15282 |
}); |
| 15283 |
|
| 15284 |
/** |
| 15285 |
* Binds methods of an object to the object itself, overwriting the existing |
| 15286 |
* method. |
| 15287 |
* |
| 15288 |
* **Note:** This method doesn't set the "length" property of bound functions. |
| 15289 |
* |
| 15290 |
* @static |
| 15291 |
* @since 0.1.0 |
| 15292 |
* @memberOf _ |
| 15293 |
* @category Util |
| 15294 |
* @param {Object} object The object to bind and assign the bound methods to. |
| 15295 |
* @param {...(string|string[])} methodNames The object method names to bind. |
| 15296 |
* @returns {Object} Returns `object`. |
| 15297 |
* @example |
| 15298 |
* |
| 15299 |
* var view = { |
| 15300 |
* 'label': 'docs', |
| 15301 |
* 'click': function() { |
| 15302 |
* console.log('clicked ' + this.label); |
| 15303 |
* } |
| 15304 |
* }; |
| 15305 |
* |
| 15306 |
* _.bindAll(view, ['click']); |
| 15307 |
* jQuery(element).on('click', view.click); |
| 15308 |
* // => Logs 'clicked docs' when clicked. |
| 15309 |
*/ |
| 15310 |
var bindAll = flatRest(function(object, methodNames) { |
| 15311 |
arrayEach(methodNames, function(key) { |
| 15312 |
key = toKey(key); |
| 15313 |
baseAssignValue(object, key, bind(object[key], object)); |
| 15314 |
}); |
| 15315 |
return object; |
| 15316 |
}); |
| 15317 |
|
| 15318 |
/** |
| 15319 |
* Creates a function that iterates over `pairs` and invokes the corresponding |
| 15320 |
* function of the first predicate to return truthy. The predicate-function |
| 15321 |
* pairs are invoked with the `this` binding and arguments of the created |
| 15322 |
* function. |
| 15323 |
* |
| 15324 |
* @static |
| 15325 |
* @memberOf _ |
| 15326 |
* @since 4.0.0 |
| 15327 |
* @category Util |
| 15328 |
* @param {Array} pairs The predicate-function pairs. |
| 15329 |
* @returns {Function} Returns the new composite function. |
| 15330 |
* @example |
| 15331 |
* |
| 15332 |
* var func = _.cond([ |
| 15333 |
* [_.matches({ 'a': 1 }), _.constant('matches A')], |
| 15334 |
* [_.conforms({ 'b': _.isNumber }), _.constant('matches B')], |
| 15335 |
* [_.stubTrue, _.constant('no match')] |
| 15336 |
* ]); |
| 15337 |
* |
| 15338 |
* func({ 'a': 1, 'b': 2 }); |
| 15339 |
* // => 'matches A' |
| 15340 |
* |
| 15341 |
* func({ 'a': 0, 'b': 1 }); |
| 15342 |
* // => 'matches B' |
| 15343 |
* |
| 15344 |
* func({ 'a': '1', 'b': '2' }); |
| 15345 |
* // => 'no match' |
| 15346 |
*/ |
| 15347 |
function cond(pairs) { |
| 15348 |
var length = pairs == null ? 0 : pairs.length, |
| 15349 |
toIteratee = getIteratee(); |
| 15350 |
|
| 15351 |
pairs = !length ? [] : arrayMap(pairs, function(pair) { |
| 15352 |
if (typeof pair[1] != 'function') { |
| 15353 |
throw new TypeError(FUNC_ERROR_TEXT); |
| 15354 |
} |
| 15355 |
return [toIteratee(pair[0]), pair[1]]; |
| 15356 |
}); |
| 15357 |
|
| 15358 |
return baseRest(function(args) { |
| 15359 |
var index = -1; |
| 15360 |
while (++index < length) { |
| 15361 |
var pair = pairs[index]; |
| 15362 |
if (apply(pair[0], this, args)) { |
| 15363 |
return apply(pair[1], this, args); |
| 15364 |
} |
| 15365 |
} |
| 15366 |
}); |
| 15367 |
} |
| 15368 |
|
| 15369 |
/** |
| 15370 |
* Creates a function that invokes the predicate properties of `source` with |
| 15371 |
* the corresponding property values of a given object, returning `true` if |
| 15372 |
* all predicates return truthy, else `false`. |
| 15373 |
* |
| 15374 |
* **Note:** The created function is equivalent to `_.conformsTo` with |
| 15375 |
* `source` partially applied. |
| 15376 |
* |
| 15377 |
* @static |
| 15378 |
* @memberOf _ |
| 15379 |
* @since 4.0.0 |
| 15380 |
* @category Util |
| 15381 |
* @param {Object} source The object of property predicates to conform to. |
| 15382 |
* @returns {Function} Returns the new spec function. |
| 15383 |
* @example |
| 15384 |
* |
| 15385 |
* var objects = [ |
| 15386 |
* { 'a': 2, 'b': 1 }, |
| 15387 |
* { 'a': 1, 'b': 2 } |
| 15388 |
* ]; |
| 15389 |
* |
| 15390 |
* _.filter(objects, _.conforms({ 'b': function(n) { return n > 1; } })); |
| 15391 |
* // => [{ 'a': 1, 'b': 2 }] |
| 15392 |
*/ |
| 15393 |
function conforms(source) { |
| 15394 |
return baseConforms(baseClone(source, CLONE_DEEP_FLAG)); |
| 15395 |
} |
| 15396 |
|
| 15397 |
/** |
| 15398 |
* Creates a function that returns `value`. |
| 15399 |
* |
| 15400 |
* @static |
| 15401 |
* @memberOf _ |
| 15402 |
* @since 2.4.0 |
| 15403 |
* @category Util |
| 15404 |
* @param {*} value The value to return from the new function. |
| 15405 |
* @returns {Function} Returns the new constant function. |
| 15406 |
* @example |
| 15407 |
* |
| 15408 |
* var objects = _.times(2, _.constant({ 'a': 1 })); |
| 15409 |
* |
| 15410 |
* console.log(objects); |
| 15411 |
* // => [{ 'a': 1 }, { 'a': 1 }] |
| 15412 |
* |
| 15413 |
* console.log(objects[0] === objects[1]); |
| 15414 |
* // => true |
| 15415 |
*/ |
| 15416 |
function constant(value) { |
| 15417 |
return function() { |
| 15418 |
return value; |
| 15419 |
}; |
| 15420 |
} |
| 15421 |
|
| 15422 |
/** |
| 15423 |
* Checks `value` to determine whether a default value should be returned in |
| 15424 |
* its place. The `defaultValue` is returned if `value` is `NaN`, `null`, |
| 15425 |
* or `undefined`. |
| 15426 |
* |
| 15427 |
* @static |
| 15428 |
* @memberOf _ |
| 15429 |
* @since 4.14.0 |
| 15430 |
* @category Util |
| 15431 |
* @param {*} value The value to check. |
| 15432 |
* @param {*} defaultValue The default value. |
| 15433 |
* @returns {*} Returns the resolved value. |
| 15434 |
* @example |
| 15435 |
* |
| 15436 |
* _.defaultTo(1, 10); |
| 15437 |
* // => 1 |
| 15438 |
* |
| 15439 |
* _.defaultTo(undefined, 10); |
| 15440 |
* // => 10 |
| 15441 |
*/ |
| 15442 |
function defaultTo(value, defaultValue) { |
| 15443 |
return (value == null || value !== value) ? defaultValue : value; |
| 15444 |
} |
| 15445 |
|
| 15446 |
/** |
| 15447 |
* Creates a function that returns the result of invoking the given functions |
| 15448 |
* with the `this` binding of the created function, where each successive |
| 15449 |
* invocation is supplied the return value of the previous. |
| 15450 |
* |
| 15451 |
* @static |
| 15452 |
* @memberOf _ |
| 15453 |
* @since 3.0.0 |
| 15454 |
* @category Util |
| 15455 |
* @param {...(Function|Function[])} [funcs] The functions to invoke. |
| 15456 |
* @returns {Function} Returns the new composite function. |
| 15457 |
* @see _.flowRight |
| 15458 |
* @example |
| 15459 |
* |
| 15460 |
* function square(n) { |
| 15461 |
* return n * n; |
| 15462 |
* } |
| 15463 |
* |
| 15464 |
* var addSquare = _.flow([_.add, square]); |
| 15465 |
* addSquare(1, 2); |
| 15466 |
* // => 9 |
| 15467 |
*/ |
| 15468 |
var flow = createFlow(); |
| 15469 |
|
| 15470 |
/** |
| 15471 |
* This method is like `_.flow` except that it creates a function that |
| 15472 |
* invokes the given functions from right to left. |
| 15473 |
* |
| 15474 |
* @static |
| 15475 |
* @since 3.0.0 |
| 15476 |
* @memberOf _ |
| 15477 |
* @category Util |
| 15478 |
* @param {...(Function|Function[])} [funcs] The functions to invoke. |
| 15479 |
* @returns {Function} Returns the new composite function. |
| 15480 |
* @see _.flow |
| 15481 |
* @example |
| 15482 |
* |
| 15483 |
* function square(n) { |
| 15484 |
* return n * n; |
| 15485 |
* } |
| 15486 |
* |
| 15487 |
* var addSquare = _.flowRight([square, _.add]); |
| 15488 |
* addSquare(1, 2); |
| 15489 |
* // => 9 |
| 15490 |
*/ |
| 15491 |
var flowRight = createFlow(true); |
| 15492 |
|
| 15493 |
/** |
| 15494 |
* This method returns the first argument it receives. |
| 15495 |
* |
| 15496 |
* @static |
| 15497 |
* @since 0.1.0 |
| 15498 |
* @memberOf _ |
| 15499 |
* @category Util |
| 15500 |
* @param {*} value Any value. |
| 15501 |
* @returns {*} Returns `value`. |
| 15502 |
* @example |
| 15503 |
* |
| 15504 |
* var object = { 'a': 1 }; |
| 15505 |
* |
| 15506 |
* console.log(_.identity(object) === object); |
| 15507 |
* // => true |
| 15508 |
*/ |
| 15509 |
function identity(value) { |
| 15510 |
return value; |
| 15511 |
} |
| 15512 |
|
| 15513 |
/** |
| 15514 |
* Creates a function that invokes `func` with the arguments of the created |
| 15515 |
* function. If `func` is a property name, the created function returns the |
| 15516 |
* property value for a given element. If `func` is an array or object, the |
| 15517 |
* created function returns `true` for elements that contain the equivalent |
| 15518 |
* source properties, otherwise it returns `false`. |
| 15519 |
* |
| 15520 |
* @static |
| 15521 |
* @since 4.0.0 |
| 15522 |
* @memberOf _ |
| 15523 |
* @category Util |
| 15524 |
* @param {*} [func=_.identity] The value to convert to a callback. |
| 15525 |
* @returns {Function} Returns the callback. |
| 15526 |
* @example |
| 15527 |
* |
| 15528 |
* var users = [ |
| 15529 |
* { 'user': 'barney', 'age': 36, 'active': true }, |
| 15530 |
* { 'user': 'fred', 'age': 40, 'active': false } |
| 15531 |
* ]; |
| 15532 |
* |
| 15533 |
* // The `_.matches` iteratee shorthand. |
| 15534 |
* _.filter(users, _.iteratee({ 'user': 'barney', 'active': true })); |
| 15535 |
* // => [{ 'user': 'barney', 'age': 36, 'active': true }] |
| 15536 |
* |
| 15537 |
* // The `_.matchesProperty` iteratee shorthand. |
| 15538 |
* _.filter(users, _.iteratee(['user', 'fred'])); |
| 15539 |
* // => [{ 'user': 'fred', 'age': 40 }] |
| 15540 |
* |
| 15541 |
* // The `_.property` iteratee shorthand. |
| 15542 |
* _.map(users, _.iteratee('user')); |
| 15543 |
* // => ['barney', 'fred'] |
| 15544 |
* |
| 15545 |
* // Create custom iteratee shorthands. |
| 15546 |
* _.iteratee = _.wrap(_.iteratee, function(iteratee, func) { |
| 15547 |
* return !_.isRegExp(func) ? iteratee(func) : function(string) { |
| 15548 |
* return func.test(string); |
| 15549 |
* }; |
| 15550 |
* }); |
| 15551 |
* |
| 15552 |
* _.filter(['abc', 'def'], /ef/); |
| 15553 |
* // => ['def'] |
| 15554 |
*/ |
| 15555 |
function iteratee(func) { |
| 15556 |
return baseIteratee(typeof func == 'function' ? func : baseClone(func, CLONE_DEEP_FLAG)); |
| 15557 |
} |
| 15558 |
|
| 15559 |
/** |
| 15560 |
* Creates a function that performs a partial deep comparison between a given |
| 15561 |
* object and `source`, returning `true` if the given object has equivalent |
| 15562 |
* property values, else `false`. |
| 15563 |
* |
| 15564 |
* **Note:** The created function is equivalent to `_.isMatch` with `source` |
| 15565 |
* partially applied. |
| 15566 |
* |
| 15567 |
* Partial comparisons will match empty array and empty object `source` |
| 15568 |
* values against any array or object value, respectively. See `_.isEqual` |
| 15569 |
* for a list of supported value comparisons. |
| 15570 |
* |
| 15571 |
* **Note:** Multiple values can be checked by combining several matchers |
| 15572 |
* using `_.overSome` |
| 15573 |
* |
| 15574 |
* @static |
| 15575 |
* @memberOf _ |
| 15576 |
* @since 3.0.0 |
| 15577 |
* @category Util |
| 15578 |
* @param {Object} source The object of property values to match. |
| 15579 |
* @returns {Function} Returns the new spec function. |
| 15580 |
* @example |
| 15581 |
* |
| 15582 |
* var objects = [ |
| 15583 |
* { 'a': 1, 'b': 2, 'c': 3 }, |
| 15584 |
* { 'a': 4, 'b': 5, 'c': 6 } |
| 15585 |
* ]; |
| 15586 |
* |
| 15587 |
* _.filter(objects, _.matches({ 'a': 4, 'c': 6 })); |
| 15588 |
* // => [{ 'a': 4, 'b': 5, 'c': 6 }] |
| 15589 |
* |
| 15590 |
* // Checking for several possible values |
| 15591 |
* _.filter(users, _.overSome([_.matches({ 'a': 1 }), _.matches({ 'a': 4 })])); |
| 15592 |
* // => [{ 'a': 1, 'b': 2, 'c': 3 }, { 'a': 4, 'b': 5, 'c': 6 }] |
| 15593 |
*/ |
| 15594 |
function matches(source) { |
| 15595 |
return baseMatches(baseClone(source, CLONE_DEEP_FLAG)); |
| 15596 |
} |
| 15597 |
|
| 15598 |
/** |
| 15599 |
* Creates a function that performs a partial deep comparison between the |
| 15600 |
* value at `path` of a given object to `srcValue`, returning `true` if the |
| 15601 |
* object value is equivalent, else `false`. |
| 15602 |
* |
| 15603 |
* **Note:** Partial comparisons will match empty array and empty object |
| 15604 |
* `srcValue` values against any array or object value, respectively. See |
| 15605 |
* `_.isEqual` for a list of supported value comparisons. |
| 15606 |
* |
| 15607 |
* **Note:** Multiple values can be checked by combining several matchers |
| 15608 |
* using `_.overSome` |
| 15609 |
* |
| 15610 |
* @static |
| 15611 |
* @memberOf _ |
| 15612 |
* @since 3.2.0 |
| 15613 |
* @category Util |
| 15614 |
* @param {Array|string} path The path of the property to get. |
| 15615 |
* @param {*} srcValue The value to match. |
| 15616 |
* @returns {Function} Returns the new spec function. |
| 15617 |
* @example |
| 15618 |
* |
| 15619 |
* var objects = [ |
| 15620 |
* { 'a': 1, 'b': 2, 'c': 3 }, |
| 15621 |
* { 'a': 4, 'b': 5, 'c': 6 } |
| 15622 |
* ]; |
| 15623 |
* |
| 15624 |
* _.find(objects, _.matchesProperty('a', 4)); |
| 15625 |
* // => { 'a': 4, 'b': 5, 'c': 6 } |
| 15626 |
* |
| 15627 |
* // Checking for several possible values |
| 15628 |
* _.filter(users, _.overSome([_.matchesProperty('a', 1), _.matchesProperty('a', 4)])); |
| 15629 |
* // => [{ 'a': 1, 'b': 2, 'c': 3 }, { 'a': 4, 'b': 5, 'c': 6 }] |
| 15630 |
*/ |
| 15631 |
function matchesProperty(path, srcValue) { |
| 15632 |
return baseMatchesProperty(path, baseClone(srcValue, CLONE_DEEP_FLAG)); |
| 15633 |
} |
| 15634 |
|
| 15635 |
/** |
| 15636 |
* Creates a function that invokes the method at `path` of a given object. |
| 15637 |
* Any additional arguments are provided to the invoked method. |
| 15638 |
* |
| 15639 |
* @static |
| 15640 |
* @memberOf _ |
| 15641 |
* @since 3.7.0 |
| 15642 |
* @category Util |
| 15643 |
* @param {Array|string} path The path of the method to invoke. |
| 15644 |
* @param {...*} [args] The arguments to invoke the method with. |
| 15645 |
* @returns {Function} Returns the new invoker function. |
| 15646 |
* @example |
| 15647 |
* |
| 15648 |
* var objects = [ |
| 15649 |
* { 'a': { 'b': _.constant(2) } }, |
| 15650 |
* { 'a': { 'b': _.constant(1) } } |
| 15651 |
* ]; |
| 15652 |
* |
| 15653 |
* _.map(objects, _.method('a.b')); |
| 15654 |
* // => [2, 1] |
| 15655 |
* |
| 15656 |
* _.map(objects, _.method(['a', 'b'])); |
| 15657 |
* // => [2, 1] |
| 15658 |
*/ |
| 15659 |
var method = baseRest(function(path, args) { |
| 15660 |
return function(object) { |
| 15661 |
return baseInvoke(object, path, args); |
| 15662 |
}; |
| 15663 |
}); |
| 15664 |
|
| 15665 |
/** |
| 15666 |
* The opposite of `_.method`; this method creates a function that invokes |
| 15667 |
* the method at a given path of `object`. Any additional arguments are |
| 15668 |
* provided to the invoked method. |
| 15669 |
* |
| 15670 |
* @static |
| 15671 |
* @memberOf _ |
| 15672 |
* @since 3.7.0 |
| 15673 |
* @category Util |
| 15674 |
* @param {Object} object The object to query. |
| 15675 |
* @param {...*} [args] The arguments to invoke the method with. |
| 15676 |
* @returns {Function} Returns the new invoker function. |
| 15677 |
* @example |
| 15678 |
* |
| 15679 |
* var array = _.times(3, _.constant), |
| 15680 |
* object = { 'a': array, 'b': array, 'c': array }; |
| 15681 |
* |
| 15682 |
* _.map(['a[2]', 'c[0]'], _.methodOf(object)); |
| 15683 |
* // => [2, 0] |
| 15684 |
* |
| 15685 |
* _.map([['a', '2'], ['c', '0']], _.methodOf(object)); |
| 15686 |
* // => [2, 0] |
| 15687 |
*/ |
| 15688 |
var methodOf = baseRest(function(object, args) { |
| 15689 |
return function(path) { |
| 15690 |
return baseInvoke(object, path, args); |
| 15691 |
}; |
| 15692 |
}); |
| 15693 |
|
| 15694 |
/** |
| 15695 |
* Adds all own enumerable string keyed function properties of a source |
| 15696 |
* object to the destination object. If `object` is a function, then methods |
| 15697 |
* are added to its prototype as well. |
| 15698 |
* |
| 15699 |
* **Note:** Use `_.runInContext` to create a pristine `lodash` function to |
| 15700 |
* avoid conflicts caused by modifying the original. |
| 15701 |
* |
| 15702 |
* @static |
| 15703 |
* @since 0.1.0 |
| 15704 |
* @memberOf _ |
| 15705 |
* @category Util |
| 15706 |
* @param {Function|Object} [object=lodash] The destination object. |
| 15707 |
* @param {Object} source The object of functions to add. |
| 15708 |
* @param {Object} [options={}] The options object. |
| 15709 |
* @param {boolean} [options.chain=true] Specify whether mixins are chainable. |
| 15710 |
* @returns {Function|Object} Returns `object`. |
| 15711 |
* @example |
| 15712 |
* |
| 15713 |
* function vowels(string) { |
| 15714 |
* return _.filter(string, function(v) { |
| 15715 |
* return /[aeiou]/i.test(v); |
| 15716 |
* }); |
| 15717 |
* } |
| 15718 |
* |
| 15719 |
* _.mixin({ 'vowels': vowels }); |
| 15720 |
* _.vowels('fred'); |
| 15721 |
* // => ['e'] |
| 15722 |
* |
| 15723 |
* _('fred').vowels().value(); |
| 15724 |
* // => ['e'] |
| 15725 |
* |
| 15726 |
* _.mixin({ 'vowels': vowels }, { 'chain': false }); |
| 15727 |
* _('fred').vowels(); |
| 15728 |
* // => ['e'] |
| 15729 |
*/ |
| 15730 |
function mixin(object, source, options) { |
| 15731 |
var props = keys(source), |
| 15732 |
methodNames = baseFunctions(source, props); |
| 15733 |
|
| 15734 |
if (options == null && |
| 15735 |
!(isObject(source) && (methodNames.length || !props.length))) { |
| 15736 |
options = source; |
| 15737 |
source = object; |
| 15738 |
object = this; |
| 15739 |
methodNames = baseFunctions(source, keys(source)); |
| 15740 |
} |
| 15741 |
var chain = !(isObject(options) && 'chain' in options) || !!options.chain, |
| 15742 |
isFunc = isFunction(object); |
| 15743 |
|
| 15744 |
arrayEach(methodNames, function(methodName) { |
| 15745 |
var func = source[methodName]; |
| 15746 |
object[methodName] = func; |
| 15747 |
if (isFunc) { |
| 15748 |
object.prototype[methodName] = function() { |
| 15749 |
var chainAll = this.__chain__; |
| 15750 |
if (chain || chainAll) { |
| 15751 |
var result = object(this.__wrapped__), |
| 15752 |
actions = result.__actions__ = copyArray(this.__actions__); |
| 15753 |
|
| 15754 |
actions.push({ 'func': func, 'args': arguments, 'thisArg': object }); |
| 15755 |
result.__chain__ = chainAll; |
| 15756 |
return result; |
| 15757 |
} |
| 15758 |
return func.apply(object, arrayPush([this.value()], arguments)); |
| 15759 |
}; |
| 15760 |
} |
| 15761 |
}); |
| 15762 |
|
| 15763 |
return object; |
| 15764 |
} |
| 15765 |
|
| 15766 |
/** |
| 15767 |
* Reverts the `_` variable to its previous value and returns a reference to |
| 15768 |
* the `lodash` function. |
| 15769 |
* |
| 15770 |
* @static |
| 15771 |
* @since 0.1.0 |
| 15772 |
* @memberOf _ |
| 15773 |
* @category Util |
| 15774 |
* @returns {Function} Returns the `lodash` function. |
| 15775 |
* @example |
| 15776 |
* |
| 15777 |
* var lodash = _.noConflict(); |
| 15778 |
*/ |
| 15779 |
function noConflict() { |
| 15780 |
if (root._ === this) { |
| 15781 |
root._ = oldDash; |
| 15782 |
} |
| 15783 |
return this; |
| 15784 |
} |
| 15785 |
|
| 15786 |
/** |
| 15787 |
* This method returns `undefined`. |
| 15788 |
* |
| 15789 |
* @static |
| 15790 |
* @memberOf _ |
| 15791 |
* @since 2.3.0 |
| 15792 |
* @category Util |
| 15793 |
* @example |
| 15794 |
* |
| 15795 |
* _.times(2, _.noop); |
| 15796 |
* // => [undefined, undefined] |
| 15797 |
*/ |
| 15798 |
function noop() { |
| 15799 |
// No operation performed. |
| 15800 |
} |
| 15801 |
|
| 15802 |
/** |
| 15803 |
* Creates a function that gets the argument at index `n`. If `n` is negative, |
| 15804 |
* the nth argument from the end is returned. |
| 15805 |
* |
| 15806 |
* @static |
| 15807 |
* @memberOf _ |
| 15808 |
* @since 4.0.0 |
| 15809 |
* @category Util |
| 15810 |
* @param {number} [n=0] The index of the argument to return. |
| 15811 |
* @returns {Function} Returns the new pass-thru function. |
| 15812 |
* @example |
| 15813 |
* |
| 15814 |
* var func = _.nthArg(1); |
| 15815 |
* func('a', 'b', 'c', 'd'); |
| 15816 |
* // => 'b' |
| 15817 |
* |
| 15818 |
* var func = _.nthArg(-2); |
| 15819 |
* func('a', 'b', 'c', 'd'); |
| 15820 |
* // => 'c' |
| 15821 |
*/ |
| 15822 |
function nthArg(n) { |
| 15823 |
n = toInteger(n); |
| 15824 |
return baseRest(function(args) { |
| 15825 |
return baseNth(args, n); |
| 15826 |
}); |
| 15827 |
} |
| 15828 |
|
| 15829 |
/** |
| 15830 |
* Creates a function that invokes `iteratees` with the arguments it receives |
| 15831 |
* and returns their results. |
| 15832 |
* |
| 15833 |
* @static |
| 15834 |
* @memberOf _ |
| 15835 |
* @since 4.0.0 |
| 15836 |
* @category Util |
| 15837 |
* @param {...(Function|Function[])} [iteratees=[_.identity]] |
| 15838 |
* The iteratees to invoke. |
| 15839 |
* @returns {Function} Returns the new function. |
| 15840 |
* @example |
| 15841 |
* |
| 15842 |
* var func = _.over([Math.max, Math.min]); |
| 15843 |
* |
| 15844 |
* func(1, 2, 3, 4); |
| 15845 |
* // => [4, 1] |
| 15846 |
*/ |
| 15847 |
var over = createOver(arrayMap); |
| 15848 |
|
| 15849 |
/** |
| 15850 |
* Creates a function that checks if **all** of the `predicates` return |
| 15851 |
* truthy when invoked with the arguments it receives. |
| 15852 |
* |
| 15853 |
* Following shorthands are possible for providing predicates. |
| 15854 |
* Pass an `Object` and it will be used as an parameter for `_.matches` to create the predicate. |
| 15855 |
* Pass an `Array` of parameters for `_.matchesProperty` and the predicate will be created using them. |
| 15856 |
* |
| 15857 |
* @static |
| 15858 |
* @memberOf _ |
| 15859 |
* @since 4.0.0 |
| 15860 |
* @category Util |
| 15861 |
* @param {...(Function|Function[])} [predicates=[_.identity]] |
| 15862 |
* The predicates to check. |
| 15863 |
* @returns {Function} Returns the new function. |
| 15864 |
* @example |
| 15865 |
* |
| 15866 |
* var func = _.overEvery([Boolean, isFinite]); |
| 15867 |
* |
| 15868 |
* func('1'); |
| 15869 |
* // => true |
| 15870 |
* |
| 15871 |
* func(null); |
| 15872 |
* // => false |
| 15873 |
* |
| 15874 |
* func(NaN); |
| 15875 |
* // => false |
| 15876 |
*/ |
| 15877 |
var overEvery = createOver(arrayEvery); |
| 15878 |
|
| 15879 |
/** |
| 15880 |
* Creates a function that checks if **any** of the `predicates` return |
| 15881 |
* truthy when invoked with the arguments it receives. |
| 15882 |
* |
| 15883 |
* Following shorthands are possible for providing predicates. |
| 15884 |
* Pass an `Object` and it will be used as an parameter for `_.matches` to create the predicate. |
| 15885 |
* Pass an `Array` of parameters for `_.matchesProperty` and the predicate will be created using them. |
| 15886 |
* |
| 15887 |
* @static |
| 15888 |
* @memberOf _ |
| 15889 |
* @since 4.0.0 |
| 15890 |
* @category Util |
| 15891 |
* @param {...(Function|Function[])} [predicates=[_.identity]] |
| 15892 |
* The predicates to check. |
| 15893 |
* @returns {Function} Returns the new function. |
| 15894 |
* @example |
| 15895 |
* |
| 15896 |
* var func = _.overSome([Boolean, isFinite]); |
| 15897 |
* |
| 15898 |
* func('1'); |
| 15899 |
* // => true |
| 15900 |
* |
| 15901 |
* func(null); |
| 15902 |
* // => true |
| 15903 |
* |
| 15904 |
* func(NaN); |
| 15905 |
* // => false |
| 15906 |
* |
| 15907 |
* var matchesFunc = _.overSome([{ 'a': 1 }, { 'a': 2 }]) |
| 15908 |
* var matchesPropertyFunc = _.overSome([['a', 1], ['a', 2]]) |
| 15909 |
*/ |
| 15910 |
var overSome = createOver(arraySome); |
| 15911 |
|
| 15912 |
/** |
| 15913 |
* Creates a function that returns the value at `path` of a given object. |
| 15914 |
* |
| 15915 |
* @static |
| 15916 |
* @memberOf _ |
| 15917 |
* @since 2.4.0 |
| 15918 |
* @category Util |
| 15919 |
* @param {Array|string} path The path of the property to get. |
| 15920 |
* @returns {Function} Returns the new accessor function. |
| 15921 |
* @example |
| 15922 |
* |
| 15923 |
* var objects = [ |
| 15924 |
* { 'a': { 'b': 2 } }, |
| 15925 |
* { 'a': { 'b': 1 } } |
| 15926 |
* ]; |
| 15927 |
* |
| 15928 |
* _.map(objects, _.property('a.b')); |
| 15929 |
* // => [2, 1] |
| 15930 |
* |
| 15931 |
* _.map(_.sortBy(objects, _.property(['a', 'b'])), 'a.b'); |
| 15932 |
* // => [1, 2] |
| 15933 |
*/ |
| 15934 |
function property(path) { |
| 15935 |
return isKey(path) ? baseProperty(toKey(path)) : basePropertyDeep(path); |
| 15936 |
} |
| 15937 |
|
| 15938 |
/** |
| 15939 |
* The opposite of `_.property`; this method creates a function that returns |
| 15940 |
* the value at a given path of `object`. |
| 15941 |
* |
| 15942 |
* @static |
| 15943 |
* @memberOf _ |
| 15944 |
* @since 3.0.0 |
| 15945 |
* @category Util |
| 15946 |
* @param {Object} object The object to query. |
| 15947 |
* @returns {Function} Returns the new accessor function. |
| 15948 |
* @example |
| 15949 |
* |
| 15950 |
* var array = [0, 1, 2], |
| 15951 |
* object = { 'a': array, 'b': array, 'c': array }; |
| 15952 |
* |
| 15953 |
* _.map(['a[2]', 'c[0]'], _.propertyOf(object)); |
| 15954 |
* // => [2, 0] |
| 15955 |
* |
| 15956 |
* _.map([['a', '2'], ['c', '0']], _.propertyOf(object)); |
| 15957 |
* // => [2, 0] |
| 15958 |
*/ |
| 15959 |
function propertyOf(object) { |
| 15960 |
return function(path) { |
| 15961 |
return object == null ? undefined : baseGet(object, path); |
| 15962 |
}; |
| 15963 |
} |
| 15964 |
|
| 15965 |
/** |
| 15966 |
* Creates an array of numbers (positive and/or negative) progressing from |
| 15967 |
* `start` up to, but not including, `end`. A step of `-1` is used if a negative |
| 15968 |
* `start` is specified without an `end` or `step`. If `end` is not specified, |
| 15969 |
* it's set to `start` with `start` then set to `0`. |
| 15970 |
* |
| 15971 |
* **Note:** JavaScript follows the IEEE-754 standard for resolving |
| 15972 |
* floating-point values which can produce unexpected results. |
| 15973 |
* |
| 15974 |
* @static |
| 15975 |
* @since 0.1.0 |
| 15976 |
* @memberOf _ |
| 15977 |
* @category Util |
| 15978 |
* @param {number} [start=0] The start of the range. |
| 15979 |
* @param {number} end The end of the range. |
| 15980 |
* @param {number} [step=1] The value to increment or decrement by. |
| 15981 |
* @returns {Array} Returns the range of numbers. |
| 15982 |
* @see _.inRange, _.rangeRight |
| 15983 |
* @example |
| 15984 |
* |
| 15985 |
* _.range(4); |
| 15986 |
* // => [0, 1, 2, 3] |
| 15987 |
* |
| 15988 |
* _.range(-4); |
| 15989 |
* // => [0, -1, -2, -3] |
| 15990 |
* |
| 15991 |
* _.range(1, 5); |
| 15992 |
* // => [1, 2, 3, 4] |
| 15993 |
* |
| 15994 |
* _.range(0, 20, 5); |
| 15995 |
* // => [0, 5, 10, 15] |
| 15996 |
* |
| 15997 |
* _.range(0, -4, -1); |
| 15998 |
* // => [0, -1, -2, -3] |
| 15999 |
* |
| 16000 |
* _.range(1, 4, 0); |
| 16001 |
* // => [1, 1, 1] |
| 16002 |
* |
| 16003 |
* _.range(0); |
| 16004 |
* // => [] |
| 16005 |
*/ |
| 16006 |
var range = createRange(); |
| 16007 |
|
| 16008 |
/** |
| 16009 |
* This method is like `_.range` except that it populates values in |
| 16010 |
* descending order. |
| 16011 |
* |
| 16012 |
* @static |
| 16013 |
* @memberOf _ |
| 16014 |
* @since 4.0.0 |
| 16015 |
* @category Util |
| 16016 |
* @param {number} [start=0] The start of the range. |
| 16017 |
* @param {number} end The end of the range. |
| 16018 |
* @param {number} [step=1] The value to increment or decrement by. |
| 16019 |
* @returns {Array} Returns the range of numbers. |
| 16020 |
* @see _.inRange, _.range |
| 16021 |
* @example |
| 16022 |
* |
| 16023 |
* _.rangeRight(4); |
| 16024 |
* // => [3, 2, 1, 0] |
| 16025 |
* |
| 16026 |
* _.rangeRight(-4); |
| 16027 |
* // => [-3, -2, -1, 0] |
| 16028 |
* |
| 16029 |
* _.rangeRight(1, 5); |
| 16030 |
* // => [4, 3, 2, 1] |
| 16031 |
* |
| 16032 |
* _.rangeRight(0, 20, 5); |
| 16033 |
* // => [15, 10, 5, 0] |
| 16034 |
* |
| 16035 |
* _.rangeRight(0, -4, -1); |
| 16036 |
* // => [-3, -2, -1, 0] |
| 16037 |
* |
| 16038 |
* _.rangeRight(1, 4, 0); |
| 16039 |
* // => [1, 1, 1] |
| 16040 |
* |
| 16041 |
* _.rangeRight(0); |
| 16042 |
* // => [] |
| 16043 |
*/ |
| 16044 |
var rangeRight = createRange(true); |
| 16045 |
|
| 16046 |
/** |
| 16047 |
* This method returns a new empty array. |
| 16048 |
* |
| 16049 |
* @static |
| 16050 |
* @memberOf _ |
| 16051 |
* @since 4.13.0 |
| 16052 |
* @category Util |
| 16053 |
* @returns {Array} Returns the new empty array. |
| 16054 |
* @example |
| 16055 |
* |
| 16056 |
* var arrays = _.times(2, _.stubArray); |
| 16057 |
* |
| 16058 |
* console.log(arrays); |
| 16059 |
* // => [[], []] |
| 16060 |
* |
| 16061 |
* console.log(arrays[0] === arrays[1]); |
| 16062 |
* // => false |
| 16063 |
*/ |
| 16064 |
function stubArray() { |
| 16065 |
return []; |
| 16066 |
} |
| 16067 |
|
| 16068 |
/** |
| 16069 |
* This method returns `false`. |
| 16070 |
* |
| 16071 |
* @static |
| 16072 |
* @memberOf _ |
| 16073 |
* @since 4.13.0 |
| 16074 |
* @category Util |
| 16075 |
* @returns {boolean} Returns `false`. |
| 16076 |
* @example |
| 16077 |
* |
| 16078 |
* _.times(2, _.stubFalse); |
| 16079 |
* // => [false, false] |
| 16080 |
*/ |
| 16081 |
function stubFalse() { |
| 16082 |
return false; |
| 16083 |
} |
| 16084 |
|
| 16085 |
/** |
| 16086 |
* This method returns a new empty object. |
| 16087 |
* |
| 16088 |
* @static |
| 16089 |
* @memberOf _ |
| 16090 |
* @since 4.13.0 |
| 16091 |
* @category Util |
| 16092 |
* @returns {Object} Returns the new empty object. |
| 16093 |
* @example |
| 16094 |
* |
| 16095 |
* var objects = _.times(2, _.stubObject); |
| 16096 |
* |
| 16097 |
* console.log(objects); |
| 16098 |
* // => [{}, {}] |
| 16099 |
* |
| 16100 |
* console.log(objects[0] === objects[1]); |
| 16101 |
* // => false |
| 16102 |
*/ |
| 16103 |
function stubObject() { |
| 16104 |
return {}; |
| 16105 |
} |
| 16106 |
|
| 16107 |
/** |
| 16108 |
* This method returns an empty string. |
| 16109 |
* |
| 16110 |
* @static |
| 16111 |
* @memberOf _ |
| 16112 |
* @since 4.13.0 |
| 16113 |
* @category Util |
| 16114 |
* @returns {string} Returns the empty string. |
| 16115 |
* @example |
| 16116 |
* |
| 16117 |
* _.times(2, _.stubString); |
| 16118 |
* // => ['', ''] |
| 16119 |
*/ |
| 16120 |
function stubString() { |
| 16121 |
return ''; |
| 16122 |
} |
| 16123 |
|
| 16124 |
/** |
| 16125 |
* This method returns `true`. |
| 16126 |
* |
| 16127 |
* @static |
| 16128 |
* @memberOf _ |
| 16129 |
* @since 4.13.0 |
| 16130 |
* @category Util |
| 16131 |
* @returns {boolean} Returns `true`. |
| 16132 |
* @example |
| 16133 |
* |
| 16134 |
* _.times(2, _.stubTrue); |
| 16135 |
* // => [true, true] |
| 16136 |
*/ |
| 16137 |
function stubTrue() { |
| 16138 |
return true; |
| 16139 |
} |
| 16140 |
|
| 16141 |
/** |
| 16142 |
* Invokes the iteratee `n` times, returning an array of the results of |
| 16143 |
* each invocation. The iteratee is invoked with one argument; (index). |
| 16144 |
* |
| 16145 |
* @static |
| 16146 |
* @since 0.1.0 |
| 16147 |
* @memberOf _ |
| 16148 |
* @category Util |
| 16149 |
* @param {number} n The number of times to invoke `iteratee`. |
| 16150 |
* @param {Function} [iteratee=_.identity] The function invoked per iteration. |
| 16151 |
* @returns {Array} Returns the array of results. |
| 16152 |
* @example |
| 16153 |
* |
| 16154 |
* _.times(3, String); |
| 16155 |
* // => ['0', '1', '2'] |
| 16156 |
* |
| 16157 |
* _.times(4, _.constant(0)); |
| 16158 |
* // => [0, 0, 0, 0] |
| 16159 |
*/ |
| 16160 |
function times(n, iteratee) { |
| 16161 |
n = toInteger(n); |
| 16162 |
if (n < 1 || n > MAX_SAFE_INTEGER) { |
| 16163 |
return []; |
| 16164 |
} |
| 16165 |
var index = MAX_ARRAY_LENGTH, |
| 16166 |
length = nativeMin(n, MAX_ARRAY_LENGTH); |
| 16167 |
|
| 16168 |
iteratee = getIteratee(iteratee); |
| 16169 |
n -= MAX_ARRAY_LENGTH; |
| 16170 |
|
| 16171 |
var result = baseTimes(length, iteratee); |
| 16172 |
while (++index < n) { |
| 16173 |
iteratee(index); |
| 16174 |
} |
| 16175 |
return result; |
| 16176 |
} |
| 16177 |
|
| 16178 |
/** |
| 16179 |
* Converts `value` to a property path array. |
| 16180 |
* |
| 16181 |
* @static |
| 16182 |
* @memberOf _ |
| 16183 |
* @since 4.0.0 |
| 16184 |
* @category Util |
| 16185 |
* @param {*} value The value to convert. |
| 16186 |
* @returns {Array} Returns the new property path array. |
| 16187 |
* @example |
| 16188 |
* |
| 16189 |
* _.toPath('a.b.c'); |
| 16190 |
* // => ['a', 'b', 'c'] |
| 16191 |
* |
| 16192 |
* _.toPath('a[0].b.c'); |
| 16193 |
* // => ['a', '0', 'b', 'c'] |
| 16194 |
*/ |
| 16195 |
function toPath(value) { |
| 16196 |
if (isArray(value)) { |
| 16197 |
return arrayMap(value, toKey); |
| 16198 |
} |
| 16199 |
return isSymbol(value) ? [value] : copyArray(stringToPath(toString(value))); |
| 16200 |
} |
| 16201 |
|
| 16202 |
/** |
| 16203 |
* Generates a unique ID. If `prefix` is given, the ID is appended to it. |
| 16204 |
* |
| 16205 |
* @static |
| 16206 |
* @since 0.1.0 |
| 16207 |
* @memberOf _ |
| 16208 |
* @category Util |
| 16209 |
* @param {string} [prefix=''] The value to prefix the ID with. |
| 16210 |
* @returns {string} Returns the unique ID. |
| 16211 |
* @example |
| 16212 |
* |
| 16213 |
* _.uniqueId('contact_'); |
| 16214 |
* // => 'contact_104' |
| 16215 |
* |
| 16216 |
* _.uniqueId(); |
| 16217 |
* // => '105' |
| 16218 |
*/ |
| 16219 |
function uniqueId(prefix) { |
| 16220 |
var id = ++idCounter; |
| 16221 |
return toString(prefix) + id; |
| 16222 |
} |
| 16223 |
|
| 16224 |
/*------------------------------------------------------------------------*/ |
| 16225 |
|
| 16226 |
/** |
| 16227 |
* Adds two numbers. |
| 16228 |
* |
| 16229 |
* @static |
| 16230 |
* @memberOf _ |
| 16231 |
* @since 3.4.0 |
| 16232 |
* @category Math |
| 16233 |
* @param {number} augend The first number in an addition. |
| 16234 |
* @param {number} addend The second number in an addition. |
| 16235 |
* @returns {number} Returns the total. |
| 16236 |
* @example |
| 16237 |
* |
| 16238 |
* _.add(6, 4); |
| 16239 |
* // => 10 |
| 16240 |
*/ |
| 16241 |
var add = createMathOperation(function(augend, addend) { |
| 16242 |
return augend + addend; |
| 16243 |
}, 0); |
| 16244 |
|
| 16245 |
/** |
| 16246 |
* Computes `number` rounded up to `precision`. |
| 16247 |
* |
| 16248 |
* @static |
| 16249 |
* @memberOf _ |
| 16250 |
* @since 3.10.0 |
| 16251 |
* @category Math |
| 16252 |
* @param {number} number The number to round up. |
| 16253 |
* @param {number} [precision=0] The precision to round up to. |
| 16254 |
* @returns {number} Returns the rounded up number. |
| 16255 |
* @example |
| 16256 |
* |
| 16257 |
* _.ceil(4.006); |
| 16258 |
* // => 5 |
| 16259 |
* |
| 16260 |
* _.ceil(6.004, 2); |
| 16261 |
* // => 6.01 |
| 16262 |
* |
| 16263 |
* _.ceil(6040, -2); |
| 16264 |
* // => 6100 |
| 16265 |
*/ |
| 16266 |
var ceil = createRound('ceil'); |
| 16267 |
|
| 16268 |
/** |
| 16269 |
* Divide two numbers. |
| 16270 |
* |
| 16271 |
* @static |
| 16272 |
* @memberOf _ |
| 16273 |
* @since 4.7.0 |
| 16274 |
* @category Math |
| 16275 |
* @param {number} dividend The first number in a division. |
| 16276 |
* @param {number} divisor The second number in a division. |
| 16277 |
* @returns {number} Returns the quotient. |
| 16278 |
* @example |
| 16279 |
* |
| 16280 |
* _.divide(6, 4); |
| 16281 |
* // => 1.5 |
| 16282 |
*/ |
| 16283 |
var divide = createMathOperation(function(dividend, divisor) { |
| 16284 |
return dividend / divisor; |
| 16285 |
}, 1); |
| 16286 |
|
| 16287 |
/** |
| 16288 |
* Computes `number` rounded down to `precision`. |
| 16289 |
* |
| 16290 |
* @static |
| 16291 |
* @memberOf _ |
| 16292 |
* @since 3.10.0 |
| 16293 |
* @category Math |
| 16294 |
* @param {number} number The number to round down. |
| 16295 |
* @param {number} [precision=0] The precision to round down to. |
| 16296 |
* @returns {number} Returns the rounded down number. |
| 16297 |
* @example |
| 16298 |
* |
| 16299 |
* _.floor(4.006); |
| 16300 |
* // => 4 |
| 16301 |
* |
| 16302 |
* _.floor(0.046, 2); |
| 16303 |
* // => 0.04 |
| 16304 |
* |
| 16305 |
* _.floor(4060, -2); |
| 16306 |
* // => 4000 |
| 16307 |
*/ |
| 16308 |
var floor = createRound('floor'); |
| 16309 |
|
| 16310 |
/** |
| 16311 |
* Computes the maximum value of `array`. If `array` is empty or falsey, |
| 16312 |
* `undefined` is returned. |
| 16313 |
* |
| 16314 |
* @static |
| 16315 |
* @since 0.1.0 |
| 16316 |
* @memberOf _ |
| 16317 |
* @category Math |
| 16318 |
* @param {Array} array The array to iterate over. |
| 16319 |
* @returns {*} Returns the maximum value. |
| 16320 |
* @example |
| 16321 |
* |
| 16322 |
* _.max([4, 2, 8, 6]); |
| 16323 |
* // => 8 |
| 16324 |
* |
| 16325 |
* _.max([]); |
| 16326 |
* // => undefined |
| 16327 |
*/ |
| 16328 |
function max(array) { |
| 16329 |
return (array && array.length) |
| 16330 |
? baseExtremum(array, identity, baseGt) |
| 16331 |
: undefined; |
| 16332 |
} |
| 16333 |
|
| 16334 |
/** |
| 16335 |
* This method is like `_.max` except that it accepts `iteratee` which is |
| 16336 |
* invoked for each element in `array` to generate the criterion by which |
| 16337 |
* the value is ranked. The iteratee is invoked with one argument: (value). |
| 16338 |
* |
| 16339 |
* @static |
| 16340 |
* @memberOf _ |
| 16341 |
* @since 4.0.0 |
| 16342 |
* @category Math |
| 16343 |
* @param {Array} array The array to iterate over. |
| 16344 |
* @param {Function} [iteratee=_.identity] The iteratee invoked per element. |
| 16345 |
* @returns {*} Returns the maximum value. |
| 16346 |
* @example |
| 16347 |
* |
| 16348 |
* var objects = [{ 'n': 1 }, { 'n': 2 }]; |
| 16349 |
* |
| 16350 |
* _.maxBy(objects, function(o) { return o.n; }); |
| 16351 |
* // => { 'n': 2 } |
| 16352 |
* |
| 16353 |
* // The `_.property` iteratee shorthand. |
| 16354 |
* _.maxBy(objects, 'n'); |
| 16355 |
* // => { 'n': 2 } |
| 16356 |
*/ |
| 16357 |
function maxBy(array, iteratee) { |
| 16358 |
return (array && array.length) |
| 16359 |
? baseExtremum(array, getIteratee(iteratee, 2), baseGt) |
| 16360 |
: undefined; |
| 16361 |
} |
| 16362 |
|
| 16363 |
/** |
| 16364 |
* Computes the mean of the values in `array`. |
| 16365 |
* |
| 16366 |
* @static |
| 16367 |
* @memberOf _ |
| 16368 |
* @since 4.0.0 |
| 16369 |
* @category Math |
| 16370 |
* @param {Array} array The array to iterate over. |
| 16371 |
* @returns {number} Returns the mean. |
| 16372 |
* @example |
| 16373 |
* |
| 16374 |
* _.mean([4, 2, 8, 6]); |
| 16375 |
* // => 5 |
| 16376 |
*/ |
| 16377 |
function mean(array) { |
| 16378 |
return baseMean(array, identity); |
| 16379 |
} |
| 16380 |
|
| 16381 |
/** |
| 16382 |
* This method is like `_.mean` except that it accepts `iteratee` which is |
| 16383 |
* invoked for each element in `array` to generate the value to be averaged. |
| 16384 |
* The iteratee is invoked with one argument: (value). |
| 16385 |
* |
| 16386 |
* @static |
| 16387 |
* @memberOf _ |
| 16388 |
* @since 4.7.0 |
| 16389 |
* @category Math |
| 16390 |
* @param {Array} array The array to iterate over. |
| 16391 |
* @param {Function} [iteratee=_.identity] The iteratee invoked per element. |
| 16392 |
* @returns {number} Returns the mean. |
| 16393 |
* @example |
| 16394 |
* |
| 16395 |
* var objects = [{ 'n': 4 }, { 'n': 2 }, { 'n': 8 }, { 'n': 6 }]; |
| 16396 |
* |
| 16397 |
* _.meanBy(objects, function(o) { return o.n; }); |
| 16398 |
* // => 5 |
| 16399 |
* |
| 16400 |
* // The `_.property` iteratee shorthand. |
| 16401 |
* _.meanBy(objects, 'n'); |
| 16402 |
* // => 5 |
| 16403 |
*/ |
| 16404 |
function meanBy(array, iteratee) { |
| 16405 |
return baseMean(array, getIteratee(iteratee, 2)); |
| 16406 |
} |
| 16407 |
|
| 16408 |
/** |
| 16409 |
* Computes the minimum value of `array`. If `array` is empty or falsey, |
| 16410 |
* `undefined` is returned. |
| 16411 |
* |
| 16412 |
* @static |
| 16413 |
* @since 0.1.0 |
| 16414 |
* @memberOf _ |
| 16415 |
* @category Math |
| 16416 |
* @param {Array} array The array to iterate over. |
| 16417 |
* @returns {*} Returns the minimum value. |
| 16418 |
* @example |
| 16419 |
* |
| 16420 |
* _.min([4, 2, 8, 6]); |
| 16421 |
* // => 2 |
| 16422 |
* |
| 16423 |
* _.min([]); |
| 16424 |
* // => undefined |
| 16425 |
*/ |
| 16426 |
function min(array) { |
| 16427 |
return (array && array.length) |
| 16428 |
? baseExtremum(array, identity, baseLt) |
| 16429 |
: undefined; |
| 16430 |
} |
| 16431 |
|
| 16432 |
/** |
| 16433 |
* This method is like `_.min` except that it accepts `iteratee` which is |
| 16434 |
* invoked for each element in `array` to generate the criterion by which |
| 16435 |
* the value is ranked. The iteratee is invoked with one argument: (value). |
| 16436 |
* |
| 16437 |
* @static |
| 16438 |
* @memberOf _ |
| 16439 |
* @since 4.0.0 |
| 16440 |
* @category Math |
| 16441 |
* @param {Array} array The array to iterate over. |
| 16442 |
* @param {Function} [iteratee=_.identity] The iteratee invoked per element. |
| 16443 |
* @returns {*} Returns the minimum value. |
| 16444 |
* @example |
| 16445 |
* |
| 16446 |
* var objects = [{ 'n': 1 }, { 'n': 2 }]; |
| 16447 |
* |
| 16448 |
* _.minBy(objects, function(o) { return o.n; }); |
| 16449 |
* // => { 'n': 1 } |
| 16450 |
* |
| 16451 |
* // The `_.property` iteratee shorthand. |
| 16452 |
* _.minBy(objects, 'n'); |
| 16453 |
* // => { 'n': 1 } |
| 16454 |
*/ |
| 16455 |
function minBy(array, iteratee) { |
| 16456 |
return (array && array.length) |
| 16457 |
? baseExtremum(array, getIteratee(iteratee, 2), baseLt) |
| 16458 |
: undefined; |
| 16459 |
} |
| 16460 |
|
| 16461 |
/** |
| 16462 |
* Multiply two numbers. |
| 16463 |
* |
| 16464 |
* @static |
| 16465 |
* @memberOf _ |
| 16466 |
* @since 4.7.0 |
| 16467 |
* @category Math |
| 16468 |
* @param {number} multiplier The first number in a multiplication. |
| 16469 |
* @param {number} multiplicand The second number in a multiplication. |
| 16470 |
* @returns {number} Returns the product. |
| 16471 |
* @example |
| 16472 |
* |
| 16473 |
* _.multiply(6, 4); |
| 16474 |
* // => 24 |
| 16475 |
*/ |
| 16476 |
var multiply = createMathOperation(function(multiplier, multiplicand) { |
| 16477 |
return multiplier * multiplicand; |
| 16478 |
}, 1); |
| 16479 |
|
| 16480 |
/** |
| 16481 |
* Computes `number` rounded to `precision`. |
| 16482 |
* |
| 16483 |
* @static |
| 16484 |
* @memberOf _ |
| 16485 |
* @since 3.10.0 |
| 16486 |
* @category Math |
| 16487 |
* @param {number} number The number to round. |
| 16488 |
* @param {number} [precision=0] The precision to round to. |
| 16489 |
* @returns {number} Returns the rounded number. |
| 16490 |
* @example |
| 16491 |
* |
| 16492 |
* _.round(4.006); |
| 16493 |
* // => 4 |
| 16494 |
* |
| 16495 |
* _.round(4.006, 2); |
| 16496 |
* // => 4.01 |
| 16497 |
* |
| 16498 |
* _.round(4060, -2); |
| 16499 |
* // => 4100 |
| 16500 |
*/ |
| 16501 |
var round = createRound('round'); |
| 16502 |
|
| 16503 |
/** |
| 16504 |
* Subtract two numbers. |
| 16505 |
* |
| 16506 |
* @static |
| 16507 |
* @memberOf _ |
| 16508 |
* @since 4.0.0 |
| 16509 |
* @category Math |
| 16510 |
* @param {number} minuend The first number in a subtraction. |
| 16511 |
* @param {number} subtrahend The second number in a subtraction. |
| 16512 |
* @returns {number} Returns the difference. |
| 16513 |
* @example |
| 16514 |
* |
| 16515 |
* _.subtract(6, 4); |
| 16516 |
* // => 2 |
| 16517 |
*/ |
| 16518 |
var subtract = createMathOperation(function(minuend, subtrahend) { |
| 16519 |
return minuend - subtrahend; |
| 16520 |
}, 0); |
| 16521 |
|
| 16522 |
/** |
| 16523 |
* Computes the sum of the values in `array`. |
| 16524 |
* |
| 16525 |
* @static |
| 16526 |
* @memberOf _ |
| 16527 |
* @since 3.4.0 |
| 16528 |
* @category Math |
| 16529 |
* @param {Array} array The array to iterate over. |
| 16530 |
* @returns {number} Returns the sum. |
| 16531 |
* @example |
| 16532 |
* |
| 16533 |
* _.sum([4, 2, 8, 6]); |
| 16534 |
* // => 20 |
| 16535 |
*/ |
| 16536 |
function sum(array) { |
| 16537 |
return (array && array.length) |
| 16538 |
? baseSum(array, identity) |
| 16539 |
: 0; |
| 16540 |
} |
| 16541 |
|
| 16542 |
/** |
| 16543 |
* This method is like `_.sum` except that it accepts `iteratee` which is |
| 16544 |
* invoked for each element in `array` to generate the value to be summed. |
| 16545 |
* The iteratee is invoked with one argument: (value). |
| 16546 |
* |
| 16547 |
* @static |
| 16548 |
* @memberOf _ |
| 16549 |
* @since 4.0.0 |
| 16550 |
* @category Math |
| 16551 |
* @param {Array} array The array to iterate over. |
| 16552 |
* @param {Function} [iteratee=_.identity] The iteratee invoked per element. |
| 16553 |
* @returns {number} Returns the sum. |
| 16554 |
* @example |
| 16555 |
* |
| 16556 |
* var objects = [{ 'n': 4 }, { 'n': 2 }, { 'n': 8 }, { 'n': 6 }]; |
| 16557 |
* |
| 16558 |
* _.sumBy(objects, function(o) { return o.n; }); |
| 16559 |
* // => 20 |
| 16560 |
* |
| 16561 |
* // The `_.property` iteratee shorthand. |
| 16562 |
* _.sumBy(objects, 'n'); |
| 16563 |
* // => 20 |
| 16564 |
*/ |
| 16565 |
function sumBy(array, iteratee) { |
| 16566 |
return (array && array.length) |
| 16567 |
? baseSum(array, getIteratee(iteratee, 2)) |
| 16568 |
: 0; |
| 16569 |
} |
| 16570 |
|
| 16571 |
/*------------------------------------------------------------------------*/ |
| 16572 |
|
| 16573 |
// Add methods that return wrapped values in chain sequences. |
| 16574 |
lodash.after = after; |
| 16575 |
lodash.ary = ary; |
| 16576 |
lodash.assign = assign; |
| 16577 |
lodash.assignIn = assignIn; |
| 16578 |
lodash.assignInWith = assignInWith; |
| 16579 |
lodash.assignWith = assignWith; |
| 16580 |
lodash.at = at; |
| 16581 |
lodash.before = before; |
| 16582 |
lodash.bind = bind; |
| 16583 |
lodash.bindAll = bindAll; |
| 16584 |
lodash.bindKey = bindKey; |
| 16585 |
lodash.castArray = castArray; |
| 16586 |
lodash.chain = chain; |
| 16587 |
lodash.chunk = chunk; |
| 16588 |
lodash.compact = compact; |
| 16589 |
lodash.concat = concat; |
| 16590 |
lodash.cond = cond; |
| 16591 |
lodash.conforms = conforms; |
| 16592 |
lodash.constant = constant; |
| 16593 |
lodash.countBy = countBy; |
| 16594 |
lodash.create = create; |
| 16595 |
lodash.curry = curry; |
| 16596 |
lodash.curryRight = curryRight; |
| 16597 |
lodash.debounce = debounce; |
| 16598 |
lodash.defaults = defaults; |
| 16599 |
lodash.defaultsDeep = defaultsDeep; |
| 16600 |
lodash.defer = defer; |
| 16601 |
lodash.delay = delay; |
| 16602 |
lodash.difference = difference; |
| 16603 |
lodash.differenceBy = differenceBy; |
| 16604 |
lodash.differenceWith = differenceWith; |
| 16605 |
lodash.drop = drop; |
| 16606 |
lodash.dropRight = dropRight; |
| 16607 |
lodash.dropRightWhile = dropRightWhile; |
| 16608 |
lodash.dropWhile = dropWhile; |
| 16609 |
lodash.fill = fill; |
| 16610 |
lodash.filter = filter; |
| 16611 |
lodash.flatMap = flatMap; |
| 16612 |
lodash.flatMapDeep = flatMapDeep; |
| 16613 |
lodash.flatMapDepth = flatMapDepth; |
| 16614 |
lodash.flatten = flatten; |
| 16615 |
lodash.flattenDeep = flattenDeep; |
| 16616 |
lodash.flattenDepth = flattenDepth; |
| 16617 |
lodash.flip = flip; |
| 16618 |
lodash.flow = flow; |
| 16619 |
lodash.flowRight = flowRight; |
| 16620 |
lodash.fromPairs = fromPairs; |
| 16621 |
lodash.functions = functions; |
| 16622 |
lodash.functionsIn = functionsIn; |
| 16623 |
lodash.groupBy = groupBy; |
| 16624 |
lodash.initial = initial; |
| 16625 |
lodash.intersection = intersection; |
| 16626 |
lodash.intersectionBy = intersectionBy; |
| 16627 |
lodash.intersectionWith = intersectionWith; |
| 16628 |
lodash.invert = invert; |
| 16629 |
lodash.invertBy = invertBy; |
| 16630 |
lodash.invokeMap = invokeMap; |
| 16631 |
lodash.iteratee = iteratee; |
| 16632 |
lodash.keyBy = keyBy; |
| 16633 |
lodash.keys = keys; |
| 16634 |
lodash.keysIn = keysIn; |
| 16635 |
lodash.map = map; |
| 16636 |
lodash.mapKeys = mapKeys; |
| 16637 |
lodash.mapValues = mapValues; |
| 16638 |
lodash.matches = matches; |
| 16639 |
lodash.matchesProperty = matchesProperty; |
| 16640 |
lodash.memoize = memoize; |
| 16641 |
lodash.merge = merge; |
| 16642 |
lodash.mergeWith = mergeWith; |
| 16643 |
lodash.method = method; |
| 16644 |
lodash.methodOf = methodOf; |
| 16645 |
lodash.mixin = mixin; |
| 16646 |
lodash.negate = negate; |
| 16647 |
lodash.nthArg = nthArg; |
| 16648 |
lodash.omit = omit; |
| 16649 |
lodash.omitBy = omitBy; |
| 16650 |
lodash.once = once; |
| 16651 |
lodash.orderBy = orderBy; |
| 16652 |
lodash.over = over; |
| 16653 |
lodash.overArgs = overArgs; |
| 16654 |
lodash.overEvery = overEvery; |
| 16655 |
lodash.overSome = overSome; |
| 16656 |
lodash.partial = partial; |
| 16657 |
lodash.partialRight = partialRight; |
| 16658 |
lodash.partition = partition; |
| 16659 |
lodash.pick = pick; |
| 16660 |
lodash.pickBy = pickBy; |
| 16661 |
lodash.property = property; |
| 16662 |
lodash.propertyOf = propertyOf; |
| 16663 |
lodash.pull = pull; |
| 16664 |
lodash.pullAll = pullAll; |
| 16665 |
lodash.pullAllBy = pullAllBy; |
| 16666 |
lodash.pullAllWith = pullAllWith; |
| 16667 |
lodash.pullAt = pullAt; |
| 16668 |
lodash.range = range; |
| 16669 |
lodash.rangeRight = rangeRight; |
| 16670 |
lodash.rearg = rearg; |
| 16671 |
lodash.reject = reject; |
| 16672 |
lodash.remove = remove; |
| 16673 |
lodash.rest = rest; |
| 16674 |
lodash.reverse = reverse; |
| 16675 |
lodash.sampleSize = sampleSize; |
| 16676 |
lodash.set = set; |
| 16677 |
lodash.setWith = setWith; |
| 16678 |
lodash.shuffle = shuffle; |
| 16679 |
lodash.slice = slice; |
| 16680 |
lodash.sortBy = sortBy; |
| 16681 |
lodash.sortedUniq = sortedUniq; |
| 16682 |
lodash.sortedUniqBy = sortedUniqBy; |
| 16683 |
lodash.split = split; |
| 16684 |
lodash.spread = spread; |
| 16685 |
lodash.tail = tail; |
| 16686 |
lodash.take = take; |
| 16687 |
lodash.takeRight = takeRight; |
| 16688 |
lodash.takeRightWhile = takeRightWhile; |
| 16689 |
lodash.takeWhile = takeWhile; |
| 16690 |
lodash.tap = tap; |
| 16691 |
lodash.throttle = throttle; |
| 16692 |
lodash.thru = thru; |
| 16693 |
lodash.toArray = toArray; |
| 16694 |
lodash.toPairs = toPairs; |
| 16695 |
lodash.toPairsIn = toPairsIn; |
| 16696 |
lodash.toPath = toPath; |
| 16697 |
lodash.toPlainObject = toPlainObject; |
| 16698 |
lodash.transform = transform; |
| 16699 |
lodash.unary = unary; |
| 16700 |
lodash.union = union; |
| 16701 |
lodash.unionBy = unionBy; |
| 16702 |
lodash.unionWith = unionWith; |
| 16703 |
lodash.uniq = uniq; |
| 16704 |
lodash.uniqBy = uniqBy; |
| 16705 |
lodash.uniqWith = uniqWith; |
| 16706 |
lodash.unset = unset; |
| 16707 |
lodash.unzip = unzip; |
| 16708 |
lodash.unzipWith = unzipWith; |
| 16709 |
lodash.update = update; |
| 16710 |
lodash.updateWith = updateWith; |
| 16711 |
lodash.values = values; |
| 16712 |
lodash.valuesIn = valuesIn; |
| 16713 |
lodash.without = without; |
| 16714 |
lodash.words = words; |
| 16715 |
lodash.wrap = wrap; |
| 16716 |
lodash.xor = xor; |
| 16717 |
lodash.xorBy = xorBy; |
| 16718 |
lodash.xorWith = xorWith; |
| 16719 |
lodash.zip = zip; |
| 16720 |
lodash.zipObject = zipObject; |
| 16721 |
lodash.zipObjectDeep = zipObjectDeep; |
| 16722 |
lodash.zipWith = zipWith; |
| 16723 |
|
| 16724 |
// Add aliases. |
| 16725 |
lodash.entries = toPairs; |
| 16726 |
lodash.entriesIn = toPairsIn; |
| 16727 |
lodash.extend = assignIn; |
| 16728 |
lodash.extendWith = assignInWith; |
| 16729 |
|
| 16730 |
// Add methods to `lodash.prototype`. |
| 16731 |
mixin(lodash, lodash); |
| 16732 |
|
| 16733 |
/*------------------------------------------------------------------------*/ |
| 16734 |
|
| 16735 |
// Add methods that return unwrapped values in chain sequences. |
| 16736 |
lodash.add = add; |
| 16737 |
lodash.attempt = attempt; |
| 16738 |
lodash.camelCase = camelCase; |
| 16739 |
lodash.capitalize = capitalize; |
| 16740 |
lodash.ceil = ceil; |
| 16741 |
lodash.clamp = clamp; |
| 16742 |
lodash.clone = clone; |
| 16743 |
lodash.cloneDeep = cloneDeep; |
| 16744 |
lodash.cloneDeepWith = cloneDeepWith; |
| 16745 |
lodash.cloneWith = cloneWith; |
| 16746 |
lodash.conformsTo = conformsTo; |
| 16747 |
lodash.deburr = deburr; |
| 16748 |
lodash.defaultTo = defaultTo; |
| 16749 |
lodash.divide = divide; |
| 16750 |
lodash.endsWith = endsWith; |
| 16751 |
lodash.eq = eq; |
| 16752 |
lodash.escape = escape; |
| 16753 |
lodash.escapeRegExp = escapeRegExp; |
| 16754 |
lodash.every = every; |
| 16755 |
lodash.find = find; |
| 16756 |
lodash.findIndex = findIndex; |
| 16757 |
lodash.findKey = findKey; |
| 16758 |
lodash.findLast = findLast; |
| 16759 |
lodash.findLastIndex = findLastIndex; |
| 16760 |
lodash.findLastKey = findLastKey; |
| 16761 |
lodash.floor = floor; |
| 16762 |
lodash.forEach = forEach; |
| 16763 |
lodash.forEachRight = forEachRight; |
| 16764 |
lodash.forIn = forIn; |
| 16765 |
lodash.forInRight = forInRight; |
| 16766 |
lodash.forOwn = forOwn; |
| 16767 |
lodash.forOwnRight = forOwnRight; |
| 16768 |
lodash.get = get; |
| 16769 |
lodash.gt = gt; |
| 16770 |
lodash.gte = gte; |
| 16771 |
lodash.has = has; |
| 16772 |
lodash.hasIn = hasIn; |
| 16773 |
lodash.head = head; |
| 16774 |
lodash.identity = identity; |
| 16775 |
lodash.includes = includes; |
| 16776 |
lodash.indexOf = indexOf; |
| 16777 |
lodash.inRange = inRange; |
| 16778 |
lodash.invoke = invoke; |
| 16779 |
lodash.isArguments = isArguments; |
| 16780 |
lodash.isArray = isArray; |
| 16781 |
lodash.isArrayBuffer = isArrayBuffer; |
| 16782 |
lodash.isArrayLike = isArrayLike; |
| 16783 |
lodash.isArrayLikeObject = isArrayLikeObject; |
| 16784 |
lodash.isBoolean = isBoolean; |
| 16785 |
lodash.isBuffer = isBuffer; |
| 16786 |
lodash.isDate = isDate; |
| 16787 |
lodash.isElement = isElement; |
| 16788 |
lodash.isEmpty = isEmpty; |
| 16789 |
lodash.isEqual = isEqual; |
| 16790 |
lodash.isEqualWith = isEqualWith; |
| 16791 |
lodash.isError = isError; |
| 16792 |
lodash.isFinite = isFinite; |
| 16793 |
lodash.isFunction = isFunction; |
| 16794 |
lodash.isInteger = isInteger; |
| 16795 |
lodash.isLength = isLength; |
| 16796 |
lodash.isMap = isMap; |
| 16797 |
lodash.isMatch = isMatch; |
| 16798 |
lodash.isMatchWith = isMatchWith; |
| 16799 |
lodash.isNaN = isNaN; |
| 16800 |
lodash.isNative = isNative; |
| 16801 |
lodash.isNil = isNil; |
| 16802 |
lodash.isNull = isNull; |
| 16803 |
lodash.isNumber = isNumber; |
| 16804 |
lodash.isObject = isObject; |
| 16805 |
lodash.isObjectLike = isObjectLike; |
| 16806 |
lodash.isPlainObject = isPlainObject; |
| 16807 |
lodash.isRegExp = isRegExp; |
| 16808 |
lodash.isSafeInteger = isSafeInteger; |
| 16809 |
lodash.isSet = isSet; |
| 16810 |
lodash.isString = isString; |
| 16811 |
lodash.isSymbol = isSymbol; |
| 16812 |
lodash.isTypedArray = isTypedArray; |
| 16813 |
lodash.isUndefined = isUndefined; |
| 16814 |
lodash.isWeakMap = isWeakMap; |
| 16815 |
lodash.isWeakSet = isWeakSet; |
| 16816 |
lodash.join = join; |
| 16817 |
lodash.kebabCase = kebabCase; |
| 16818 |
lodash.last = last; |
| 16819 |
lodash.lastIndexOf = lastIndexOf; |
| 16820 |
lodash.lowerCase = lowerCase; |
| 16821 |
lodash.lowerFirst = lowerFirst; |
| 16822 |
lodash.lt = lt; |
| 16823 |
lodash.lte = lte; |
| 16824 |
lodash.max = max; |
| 16825 |
lodash.maxBy = maxBy; |
| 16826 |
lodash.mean = mean; |
| 16827 |
lodash.meanBy = meanBy; |
| 16828 |
lodash.min = min; |
| 16829 |
lodash.minBy = minBy; |
| 16830 |
lodash.stubArray = stubArray; |
| 16831 |
lodash.stubFalse = stubFalse; |
| 16832 |
lodash.stubObject = stubObject; |
| 16833 |
lodash.stubString = stubString; |
| 16834 |
lodash.stubTrue = stubTrue; |
| 16835 |
lodash.multiply = multiply; |
| 16836 |
lodash.nth = nth; |
| 16837 |
lodash.noConflict = noConflict; |
| 16838 |
lodash.noop = noop; |
| 16839 |
lodash.now = now; |
| 16840 |
lodash.pad = pad; |
| 16841 |
lodash.padEnd = padEnd; |
| 16842 |
lodash.padStart = padStart; |
| 16843 |
lodash.parseInt = parseInt; |
| 16844 |
lodash.random = random; |
| 16845 |
lodash.reduce = reduce; |
| 16846 |
lodash.reduceRight = reduceRight; |
| 16847 |
lodash.repeat = repeat; |
| 16848 |
lodash.replace = replace; |
| 16849 |
lodash.result = result; |
| 16850 |
lodash.round = round; |
| 16851 |
lodash.runInContext = runInContext; |
| 16852 |
lodash.sample = sample; |
| 16853 |
lodash.size = size; |
| 16854 |
lodash.snakeCase = snakeCase; |
| 16855 |
lodash.some = some; |
| 16856 |
lodash.sortedIndex = sortedIndex; |
| 16857 |
lodash.sortedIndexBy = sortedIndexBy; |
| 16858 |
lodash.sortedIndexOf = sortedIndexOf; |
| 16859 |
lodash.sortedLastIndex = sortedLastIndex; |
| 16860 |
lodash.sortedLastIndexBy = sortedLastIndexBy; |
| 16861 |
lodash.sortedLastIndexOf = sortedLastIndexOf; |
| 16862 |
lodash.startCase = startCase; |
| 16863 |
lodash.startsWith = startsWith; |
| 16864 |
lodash.subtract = subtract; |
| 16865 |
lodash.sum = sum; |
| 16866 |
lodash.sumBy = sumBy; |
| 16867 |
lodash.template = template; |
| 16868 |
lodash.times = times; |
| 16869 |
lodash.toFinite = toFinite; |
| 16870 |
lodash.toInteger = toInteger; |
| 16871 |
lodash.toLength = toLength; |
| 16872 |
lodash.toLower = toLower; |
| 16873 |
lodash.toNumber = toNumber; |
| 16874 |
lodash.toSafeInteger = toSafeInteger; |
| 16875 |
lodash.toString = toString; |
| 16876 |
lodash.toUpper = toUpper; |
| 16877 |
lodash.trim = trim; |
| 16878 |
lodash.trimEnd = trimEnd; |
| 16879 |
lodash.trimStart = trimStart; |
| 16880 |
lodash.truncate = truncate; |
| 16881 |
lodash.unescape = unescape; |
| 16882 |
lodash.uniqueId = uniqueId; |
| 16883 |
lodash.upperCase = upperCase; |
| 16884 |
lodash.upperFirst = upperFirst; |
| 16885 |
|
| 16886 |
// Add aliases. |
| 16887 |
lodash.each = forEach; |
| 16888 |
lodash.eachRight = forEachRight; |
| 16889 |
lodash.first = head; |
| 16890 |
|
| 16891 |
mixin(lodash, (function() { |
| 16892 |
var source = {}; |
| 16893 |
baseForOwn(lodash, function(func, methodName) { |
| 16894 |
if (!hasOwnProperty.call(lodash.prototype, methodName)) { |
| 16895 |
source[methodName] = func; |
| 16896 |
} |
| 16897 |
}); |
| 16898 |
return source; |
| 16899 |
}()), { 'chain': false }); |
| 16900 |
|
| 16901 |
/*------------------------------------------------------------------------*/ |
| 16902 |
|
| 16903 |
/** |
| 16904 |
* The semantic version number. |
| 16905 |
* |
| 16906 |
* @static |
| 16907 |
* @memberOf _ |
| 16908 |
* @type {string} |
| 16909 |
*/ |
| 16910 |
lodash.VERSION = VERSION; |
| 16911 |
|
| 16912 |
// Assign default placeholders. |
| 16913 |
arrayEach(['bind', 'bindKey', 'curry', 'curryRight', 'partial', 'partialRight'], function(methodName) { |
| 16914 |
lodash[methodName].placeholder = lodash; |
| 16915 |
}); |
| 16916 |
|
| 16917 |
// Add `LazyWrapper` methods for `_.drop` and `_.take` variants. |
| 16918 |
arrayEach(['drop', 'take'], function(methodName, index) { |
| 16919 |
LazyWrapper.prototype[methodName] = function(n) { |
| 16920 |
n = n === undefined ? 1 : nativeMax(toInteger(n), 0); |
| 16921 |
|
| 16922 |
var result = (this.__filtered__ && !index) |
| 16923 |
? new LazyWrapper(this) |
| 16924 |
: this.clone(); |
| 16925 |
|
| 16926 |
if (result.__filtered__) { |
| 16927 |
result.__takeCount__ = nativeMin(n, result.__takeCount__); |
| 16928 |
} else { |
| 16929 |
result.__views__.push({ |
| 16930 |
'size': nativeMin(n, MAX_ARRAY_LENGTH), |
| 16931 |
'type': methodName + (result.__dir__ < 0 ? 'Right' : '') |
| 16932 |
}); |
| 16933 |
} |
| 16934 |
return result; |
| 16935 |
}; |
| 16936 |
|
| 16937 |
LazyWrapper.prototype[methodName + 'Right'] = function(n) { |
| 16938 |
return this.reverse()[methodName](n).reverse(); |
| 16939 |
}; |
| 16940 |
}); |
| 16941 |
|
| 16942 |
// Add `LazyWrapper` methods that accept an `iteratee` value. |
| 16943 |
arrayEach(['filter', 'map', 'takeWhile'], function(methodName, index) { |
| 16944 |
var type = index + 1, |
| 16945 |
isFilter = type == LAZY_FILTER_FLAG || type == LAZY_WHILE_FLAG; |
| 16946 |
|
| 16947 |
LazyWrapper.prototype[methodName] = function(iteratee) { |
| 16948 |
var result = this.clone(); |
| 16949 |
result.__iteratees__.push({ |
| 16950 |
'iteratee': getIteratee(iteratee, 3), |
| 16951 |
'type': type |
| 16952 |
}); |
| 16953 |
result.__filtered__ = result.__filtered__ || isFilter; |
| 16954 |
return result; |
| 16955 |
}; |
| 16956 |
}); |
| 16957 |
|
| 16958 |
// Add `LazyWrapper` methods for `_.head` and `_.last`. |
| 16959 |
arrayEach(['head', 'last'], function(methodName, index) { |
| 16960 |
var takeName = 'take' + (index ? 'Right' : ''); |
| 16961 |
|
| 16962 |
LazyWrapper.prototype[methodName] = function() { |
| 16963 |
return this[takeName](1).value()[0]; |
| 16964 |
}; |
| 16965 |
}); |
| 16966 |
|
| 16967 |
// Add `LazyWrapper` methods for `_.initial` and `_.tail`. |
| 16968 |
arrayEach(['initial', 'tail'], function(methodName, index) { |
| 16969 |
var dropName = 'drop' + (index ? '' : 'Right'); |
| 16970 |
|
| 16971 |
LazyWrapper.prototype[methodName] = function() { |
| 16972 |
return this.__filtered__ ? new LazyWrapper(this) : this[dropName](1); |
| 16973 |
}; |
| 16974 |
}); |
| 16975 |
|
| 16976 |
LazyWrapper.prototype.compact = function() { |
| 16977 |
return this.filter(identity); |
| 16978 |
}; |
| 16979 |
|
| 16980 |
LazyWrapper.prototype.find = function(predicate) { |
| 16981 |
return this.filter(predicate).head(); |
| 16982 |
}; |
| 16983 |
|
| 16984 |
LazyWrapper.prototype.findLast = function(predicate) { |
| 16985 |
return this.reverse().find(predicate); |
| 16986 |
}; |
| 16987 |
|
| 16988 |
LazyWrapper.prototype.invokeMap = baseRest(function(path, args) { |
| 16989 |
if (typeof path == 'function') { |
| 16990 |
return new LazyWrapper(this); |
| 16991 |
} |
| 16992 |
return this.map(function(value) { |
| 16993 |
return baseInvoke(value, path, args); |
| 16994 |
}); |
| 16995 |
}); |
| 16996 |
|
| 16997 |
LazyWrapper.prototype.reject = function(predicate) { |
| 16998 |
return this.filter(negate(getIteratee(predicate))); |
| 16999 |
}; |
| 17000 |
|
| 17001 |
LazyWrapper.prototype.slice = function(start, end) { |
| 17002 |
start = toInteger(start); |
| 17003 |
|
| 17004 |
var result = this; |
| 17005 |
if (result.__filtered__ && (start > 0 || end < 0)) { |
| 17006 |
return new LazyWrapper(result); |
| 17007 |
} |
| 17008 |
if (start < 0) { |
| 17009 |
result = result.takeRight(-start); |
| 17010 |
} else if (start) { |
| 17011 |
result = result.drop(start); |
| 17012 |
} |
| 17013 |
if (end !== undefined) { |
| 17014 |
end = toInteger(end); |
| 17015 |
result = end < 0 ? result.dropRight(-end) : result.take(end - start); |
| 17016 |
} |
| 17017 |
return result; |
| 17018 |
}; |
| 17019 |
|
| 17020 |
LazyWrapper.prototype.takeRightWhile = function(predicate) { |
| 17021 |
return this.reverse().takeWhile(predicate).reverse(); |
| 17022 |
}; |
| 17023 |
|
| 17024 |
LazyWrapper.prototype.toArray = function() { |
| 17025 |
return this.take(MAX_ARRAY_LENGTH); |
| 17026 |
}; |
| 17027 |
|
| 17028 |
// Add `LazyWrapper` methods to `lodash.prototype`. |
| 17029 |
baseForOwn(LazyWrapper.prototype, function(func, methodName) { |
| 17030 |
var checkIteratee = /^(?:filter|find|map|reject)|While$/.test(methodName), |
| 17031 |
isTaker = /^(?:head|last)$/.test(methodName), |
| 17032 |
lodashFunc = lodash[isTaker ? ('take' + (methodName == 'last' ? 'Right' : '')) : methodName], |
| 17033 |
retUnwrapped = isTaker || /^find/.test(methodName); |
| 17034 |
|
| 17035 |
if (!lodashFunc) { |
| 17036 |
return; |
| 17037 |
} |
| 17038 |
lodash.prototype[methodName] = function() { |
| 17039 |
var value = this.__wrapped__, |
| 17040 |
args = isTaker ? [1] : arguments, |
| 17041 |
isLazy = value instanceof LazyWrapper, |
| 17042 |
iteratee = args[0], |
| 17043 |
useLazy = isLazy || isArray(value); |
| 17044 |
|
| 17045 |
var interceptor = function(value) { |
| 17046 |
var result = lodashFunc.apply(lodash, arrayPush([value], args)); |
| 17047 |
return (isTaker && chainAll) ? result[0] : result; |
| 17048 |
}; |
| 17049 |
|
| 17050 |
if (useLazy && checkIteratee && typeof iteratee == 'function' && iteratee.length != 1) { |
| 17051 |
// Avoid lazy use if the iteratee has a "length" value other than `1`. |
| 17052 |
isLazy = useLazy = false; |
| 17053 |
} |
| 17054 |
var chainAll = this.__chain__, |
| 17055 |
isHybrid = !!this.__actions__.length, |
| 17056 |
isUnwrapped = retUnwrapped && !chainAll, |
| 17057 |
onlyLazy = isLazy && !isHybrid; |
| 17058 |
|
| 17059 |
if (!retUnwrapped && useLazy) { |
| 17060 |
value = onlyLazy ? value : new LazyWrapper(this); |
| 17061 |
var result = func.apply(value, args); |
| 17062 |
result.__actions__.push({ 'func': thru, 'args': [interceptor], 'thisArg': undefined }); |
| 17063 |
return new LodashWrapper(result, chainAll); |
| 17064 |
} |
| 17065 |
if (isUnwrapped && onlyLazy) { |
| 17066 |
return func.apply(this, args); |
| 17067 |
} |
| 17068 |
result = this.thru(interceptor); |
| 17069 |
return isUnwrapped ? (isTaker ? result.value()[0] : result.value()) : result; |
| 17070 |
}; |
| 17071 |
}); |
| 17072 |
|
| 17073 |
// Add `Array` methods to `lodash.prototype`. |
| 17074 |
arrayEach(['pop', 'push', 'shift', 'sort', 'splice', 'unshift'], function(methodName) { |
| 17075 |
var func = arrayProto[methodName], |
| 17076 |
chainName = /^(?:push|sort|unshift)$/.test(methodName) ? 'tap' : 'thru', |
| 17077 |
retUnwrapped = /^(?:pop|shift)$/.test(methodName); |
| 17078 |
|
| 17079 |
lodash.prototype[methodName] = function() { |
| 17080 |
var args = arguments; |
| 17081 |
if (retUnwrapped && !this.__chain__) { |
| 17082 |
var value = this.value(); |
| 17083 |
return func.apply(isArray(value) ? value : [], args); |
| 17084 |
} |
| 17085 |
return this[chainName](function(value) { |
| 17086 |
return func.apply(isArray(value) ? value : [], args); |
| 17087 |
}); |
| 17088 |
}; |
| 17089 |
}); |
| 17090 |
|
| 17091 |
// Map minified method names to their real names. |
| 17092 |
baseForOwn(LazyWrapper.prototype, function(func, methodName) { |
| 17093 |
var lodashFunc = lodash[methodName]; |
| 17094 |
if (lodashFunc) { |
| 17095 |
var key = lodashFunc.name + ''; |
| 17096 |
if (!hasOwnProperty.call(realNames, key)) { |
| 17097 |
realNames[key] = []; |
| 17098 |
} |
| 17099 |
realNames[key].push({ 'name': methodName, 'func': lodashFunc }); |
| 17100 |
} |
| 17101 |
}); |
| 17102 |
|
| 17103 |
realNames[createHybrid(undefined, WRAP_BIND_KEY_FLAG).name] = [{ |
| 17104 |
'name': 'wrapper', |
| 17105 |
'func': undefined |
| 17106 |
}]; |
| 17107 |
|
| 17108 |
// Add methods to `LazyWrapper`. |
| 17109 |
LazyWrapper.prototype.clone = lazyClone; |
| 17110 |
LazyWrapper.prototype.reverse = lazyReverse; |
| 17111 |
LazyWrapper.prototype.value = lazyValue; |
| 17112 |
|
| 17113 |
// Add chain sequence methods to the `lodash` wrapper. |
| 17114 |
lodash.prototype.at = wrapperAt; |
| 17115 |
lodash.prototype.chain = wrapperChain; |
| 17116 |
lodash.prototype.commit = wrapperCommit; |
| 17117 |
lodash.prototype.next = wrapperNext; |
| 17118 |
lodash.prototype.plant = wrapperPlant; |
| 17119 |
lodash.prototype.reverse = wrapperReverse; |
| 17120 |
lodash.prototype.toJSON = lodash.prototype.valueOf = lodash.prototype.value = wrapperValue; |
| 17121 |
|
| 17122 |
// Add lazy aliases. |
| 17123 |
lodash.prototype.first = lodash.prototype.head; |
| 17124 |
|
| 17125 |
if (symIterator) { |
| 17126 |
lodash.prototype[symIterator] = wrapperToIterator; |
| 17127 |
} |
| 17128 |
return lodash; |
| 17129 |
}); |
| 17130 |
|
| 17131 |
/*--------------------------------------------------------------------------*/ |
| 17132 |
|
| 17133 |
// Export lodash. |
| 17134 |
var _ = runInContext(); |
| 17135 |
|
| 17136 |
// Some AMD build optimizers, like r.js, check for condition patterns like: |
| 17137 |
if (typeof define == 'function' && typeof define.amd == 'object' && define.amd) { |
| 17138 |
// Expose Lodash on the global object to prevent errors when Lodash is |
| 17139 |
// loaded by a script tag in the presence of an AMD loader. |
| 17140 |
// See http://requirejs.org/docs/errors.html#mismatch for more details. |
| 17141 |
// Use `_.noConflict` to remove Lodash from the global object. |
| 17142 |
root._ = _; |
| 17143 |
|
| 17144 |
// Define as an anonymous module so, through path mapping, it can be |
| 17145 |
// referenced as the "underscore" module. |
| 17146 |
define(function() { |
| 17147 |
return _; |
| 17148 |
}); |
| 17149 |
} |
| 17150 |
// Check for `exports` after `define` in case a build optimizer adds it. |
| 17151 |
else if (freeModule) { |
| 17152 |
// Export for Node.js. |
| 17153 |
(freeModule.exports = _)._ = _; |
| 17154 |
// Export for CommonJS support. |
| 17155 |
freeExports._ = _; |
| 17156 |
} |
| 17157 |
else { |
| 17158 |
// Export to the global object. |
| 17159 |
root._ = _; |
| 17160 |
} |
| 17161 |
}.call(this)); |
| 17162 |
|
