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Run results for:
DataAttribute vs Class Selector vs ID Selector
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<iframe src="https://measurethat.net/Embed?id=556173" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.6 Safari/605.1.15
Browser:
Safari 17
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
one year ago
Test name
Executions per second
Class
5831725.5 Ops/sec
ID
5528381.0 Ops/sec
data attribute
5223220.0 Ops/sec
HTML Preparation code:
<div class="hello" id="hello" data-hello>Hello</div>
Tests:
Class
document.querySelector('.hello');
ID
document.querySelector('#hello');
data attribute
document.querySelector('[data-hello]');