Flying Scripts: Delay JavaScript to Improve Site Speed & Performance / 1.1.4

Flying Scripts: Delay JavaScript to Improve Site Speed & Performance v1.1.4

flying-scripts / source.js

source.js in Flying Scripts: Delay JavaScript to Improve Site Speed & Performance 1.1.4, at source.js

27 lines 730 B

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1	const loadScriptsTimer = setTimeout(loadScripts, 5000);
2	const userInteractionEvents = [
3	"mouseover",
4	"scroll",
5	"keydown",
6	"touchmove",
7	"touchstart"
8	];
9	userInteractionEvents.forEach(function(event) {
10	window.addEventListener(event, triggerScriptLoader, { passive: true });
11	});
12
13	function triggerScriptLoader() {
14	loadScripts();
15	clearTimeout(loadScriptsTimer);
16	userInteractionEvents.forEach(function(event) {
17	window.removeEventListener(event, triggerScriptLoader, { passive: true });
18	});
19	}
20
21	function loadScripts() {
22	document.querySelectorAll("script[type='lazy']").forEach(function(elem) {
23	elem.setAttribute("type", "text/javascript");
24	elem.setAttribute("src", elem.getAttribute("data-src"));
25	});
26	}
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