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Run results for:
class vs. data attribute selectors
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Run details:
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/144.0.0.0 Safari/537.36
Browser:
Chrome 144
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
3 months ago
Test name
Executions per second
class
24341102.0 Ops/sec
data attribute (with value)
19668882.0 Ops/sec
data attribute (boolean)
19118068.0 Ops/sec
HTML Preparation code:
<span class="tag is-small">Hello</span> <span class="tag" data-size="small">Hello</span> <span class="tag" data-small>Hello</span>
Tests:
class
document.querySelector('.tag.is-small');
data attribute (with value)
document.querySelector('.tag[data-size="small"]');
data attribute (boolean)
document.querySelector('.tag[data-small]');