Flying Scripts: Delay JavaScript to Improve Site Speed & Performance / 1.2.2

Flying Scripts: Delay JavaScript to Improve Site Speed & Performance v1.2.2

flying-scripts / source.js

source.js in Flying Scripts: Delay JavaScript to Improve Site Speed & Performance 1.2.2, at source.js

25 lines 697 B

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