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Run results for:
querySelectorAll data attribute vs class name vs custom HTML tag
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<iframe src="https://measurethat.net/Embed?id=596074" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/134.0.0.0 Safari/537.36
Browser:
Chrome 134
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
one year ago
Test name
Executions per second
Data attribute
2920224.0 Ops/sec
Class name
3414596.0 Ops/sec
Custom HTML tag
3518398.2 Ops/sec
HTML Preparation code:
<x-div class="test" data-attribute="test"></x-div> <x-div class="test" data-attribute="test"></x-div> <x-div class="test" data-attribute="test"></x-div> <x-div class="test" data-attribute="test"></x-div> <x-div class="test" data-attribute="test"></x-div> <x-div class="test" data-attribute="test"></x-div> <x-div class="test" data-attribute="test"></x-div> <x-div class="test" data-attribute="test"></x-div> <x-div class="test" data-attribute="test"></x-div> <x-div class="test" data-attribute="test"></x-div> <x-div class="test" data-attribute="test"></x-div> <x-div class="test" data-attribute="test"></x-div> <x-div class="test" data-attribute="test"></x-div> <x-div class="test" data-attribute="test"></x-div> <x-div class="test" data-attribute="test"></x-div> <x-div class="test" data-attribute="test"></x-div> <x-div class="test" data-attribute="test"></x-div> <x-div class="test" data-attribute="test"></x-div> <x-div class="test" data-attribute="test"></x-div> <x-div class="test" data-attribute="test"></x-div> <x-div class="test" data-attribute="test"></x-div> <x-div class="test" data-attribute="test"></x-div> <x-div class="test" data-attribute="test"></x-div> <x-div class="test" data-attribute="test"></x-div>
Tests:
Data attribute
var test = document.querySelectorAll('[data-attribute="test"]');
Class name
var test = document.querySelectorAll('.test');
Custom HTML tag
var test = document.querySelectorAll('x-div');