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Run results for:
classList.add vs setAttribute
Which is faster? Adding a class to an element of setting an attribute on it?
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=617286" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/139.0.0.0 Safari/537.36
Browser:
Chrome 139
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
9 months ago
Test name
Executions per second
setAttribute
5387300.0 Ops/sec
classList.add
11639783.0 Ops/sec
HTML Preparation code:
<div id="test">Testing</div>
Script Preparation code:
var el = document.getElementById('test');
Tests:
setAttribute
el.setAttribute('mytest', 'true')
classList.add
el.classList.add('mytest')