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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=576372" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Windows NT 6.3; Win64; x64; rv:109.0) Gecko/20100101 Firefox/115.0
Browser:
Firefox 115
Operating system:
Windows 8.1
Device Platform:
Desktop
Date tested:
one year ago
Class
3.3M/s
ID
3.3M/s
data attribute
2.1M/s
View exact numbers
Test name
Executions per second
✓
Class
3,316,170 Ops/sec
ID
3,260,823 Ops/sec
data attribute
2,081,928 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]');