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Run results for:
querySelector vs. getElementById Performance
https://ahmedbouchefra.com
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<iframe src="https://measurethat.net/Embed?id=620893" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/137.0.0.0 Mobile Safari/537.36
Browser:
Chrome Mobile 137
Operating system:
Android
Device Platform:
Mobile
Date tested:
6 months ago
Test name
Executions per second
getElementById
13107112.0 Ops/sec
querySelector
3278271.5 Ops/sec
HTML Preparation code:
<div id="el"></div>
Tests:
getElementById
var el = document.getElementById('el'); var className = el.className;
querySelector
var el = document.querySelector('#el'); var className = el.className;