Simple WaitForKeyElement

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Simple WaitForKeyElement

Library that Exports my simplified vanilla JS version of WaitForKeyElement, which is a simple async function that returns a Promise that resolves to an element by a given selector, when that element is found

Dieses Skript sollte nicht direkt installiert werden. Es handelt sich hier um eine Bibliothek für andere Skripte, welche über folgenden Befehl in den Metadaten eines Skriptes eingebunden wird // @require https://update.greasyfork.dpdns.org/scripts/511024/1460585/Simple%20WaitForKeyElement.js

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// ==UserScript==
// @name        Simple WaitForKeyElement
// @license     Unlicense
// @namespace   1N07
// @match       *://*/*
// @version     1.0.1
// @author      1N07
// @description Library that Exports my simplified vanilla JS version of WaitForKeyElement, which is a simple async function that returns a Promise that resolves to an element by a given selector, when that element is found
// ==/UserScript==

async function WaitForKeyElement(selector, timeout) {
	return new Promise((resolve, reject) => {
		let el = document.querySelector(selector);
		if (el) {
			resolve(el);
			return;
		}
		new MutationObserver((mutationRecords, observer) => {
			el = document.querySelector(selector);
			if (el) {
				resolve(el);
				observer.disconnect();
			}
		}).observe(document.documentElement, { childList: true, subtree: true });
		if (timeout) {
			setTimeout(() => {
				reject(`WaitForKeyElement: "${selector}" timed out`);
			}, timeout);
		}
	});
}

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Simple WaitForKeyElement

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