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Run results for:
getElementById vs querySelector vs getElementsByTagName pt. 2
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=561456" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (iPhone; CPU iPhone OS 18_0_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/18.0.1 Mobile/15E148 Safari/604.1
Browser:
Mobile Safari 18
Operating system:
iOS 18.0.1
Device Platform:
Mobile
Date tested:
one year ago
Test name
Executions per second
getElementById
8926841.0 Ops/sec
querySelector element ID
3694735.8 Ops/sec
querySelector tag name
4168903.2 Ops/sec
getElementsByTagName
7583361.5 Ops/sec
HTML Preparation code:
<div id="testElement"></div>
Tests:
getElementById
var el = document.getElementById('testElement'); var className = el.className;
querySelector element ID
var el = document.querySelector('#testElement'); var className = el.className;
querySelector tag name
var el = document.querySelector('div'); var className = el.className;
getElementsByTagName
var el = document.getElementsByTagName('div'); var className = el.className;