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Run results for:
dataAttribute vs attribute vs Class Selector vs ID Selector
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<iframe src="https://measurethat.net/Embed?id=619590" 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/141.0.0.0 Safari/537.36 Edg/141.0.0.0
Browser:
Chrome 141
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
6 months ago
Test name
Executions per second
Class
36346220.0 Ops/sec
ID
13252654.0 Ops/sec
data attribute
12644639.0 Ops/sec
just random attribute
12808258.0 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]');
just random attribute
document.querySelector('[class]');