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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=517061" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:124.0) Gecko/20100101 Firefox/124.0
Browser:
Firefox 124
Operating system:
Mac OS X 10.15
Device Platform:
Desktop
Date tested:
2 years ago
Class
10.6M/s
ID
10.3M/s
data attribute
9.7M/s
View exact numbers
Test name
Executions per second
✓
Class
10,637,725 Ops/sec
ID
10,319,076 Ops/sec
data attribute
9,730,594 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]');