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Run results for:
DataAttribute vs Class Selector vs ID Selector
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Run details:
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/16.1 Safari/605.1.15
Browser:
Safari 16
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
2 years ago
Class
8.6M/s
ID
7.9M/s
data attribute
7.5M/s
View exact numbers
Test name
Executions per second
✓
Class
8,631,470 Ops/sec
ID
7,910,502 Ops/sec
data attribute
7,548,686 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]');