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Run results for:
addEventListener() vs jQuery.on() with click
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<iframe src="https://measurethat.net/Embed?id=618583" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:143.0) Gecko/20100101 Firefox/143.0
Browser:
Firefox 143
Operating system:
Ubuntu
Device Platform:
Desktop
Date tested:
6 months ago
Test name
Executions per second
addEventListener
283.7 Ops/sec
addEventListener anon
107.3 Ops/sec
jQuery.on()
21520.7 Ops/sec
jQuery.on() anon
13390.0 Ops/sec
HTML Preparation code:
<script src='https://cdnjs.cloudflare.com/ajax/libs/jquery/3.5.1/jquery.js'></script> <div></div><div></div><div></div><div></div><div></div><div></div><div></div><div></div><div></div><div></div> <div></div><div></div><div></div><div></div><div></div><div></div><div></div><div></div><div></div><div></div> <div></div><div></div><div></div><div></div><div></div><div></div><div></div><div></div><div></div><div></div> <div></div><div></div><div></div><div></div><div></div><div></div><div></div><div></div><div></div><div></div> <div></div><div></div><div></div><div></div><div></div><div></div><div></div><div></div><div></div><div></div> <div></div><div></div><div></div><div></div><div></div><div></div><div></div><div></div><div></div><div></div> <div></div><div></div><div></div><div></div><div></div><div></div><div></div><div></div><div></div><div></div> <div></div><div></div><div></div><div></div><div></div><div></div><div></div><div></div><div></div><div></div> <div></div><div></div><div></div><div></div><div></div><div></div><div></div><div></div><div></div><div></div> <div></div><div></div><div></div><div></div><div></div><div></div><div></div><div></div><div></div><div></div>
Script Preparation code:
document.querySelectorAll('div').forEach((e) => { e.onmouseenter = ''; }); var divs = document.querySelectorAll('div');
Tests:
addEventListener
const f = () => { return 123; }; divs.forEach((e) => { e.addEventListener('click', f); });
addEventListener anon
divs.forEach((e) => { e.addEventListener('click', () => { return 123; }); });
jQuery.on()
const f = () => { return 123; }; document.querySelectorAll('div').forEach((e) => { jQuery(e).on('click', f); });
jQuery.on() anon
document.querySelectorAll('div').forEach((e) => { jQuery(e).on('click', () => { return 123; }); });