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Run results for:
DataAttribute vs Class Selector vs ID Selector
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=614584" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/138.0.0.0 Safari/537.36
Browser:
Chrome 138
Operating system:
Linux
Device Platform:
Desktop
Date tested:
one year ago
Class
26.5M/s
ID
13.9M/s
data attribute
12.8M/s
View exact numbers
Test name
Executions per second
✓
Class
26,480,398 Ops/sec
ID
13,925,329 Ops/sec
data attribute
12,846,911 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]');