MeasureThat.net

Run results for: querySelectorAll data vs class vs getElementsByClassName

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Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:101.0) Gecko/20100101 Firefox/101.0
Firefox 101
Windows
Desktop
2 years ago
Test name Executions per second
data attribute - querySelectorAll 509703.7 Ops/sec
class name - querySelectorAll 440556.4 Ops/sec
class name - getElementsByClassName 5761082.5 Ops/sec
HTML Preparation code:
AخA
 
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<div class="test" data-attribute="test"></div>
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<div class="test" data-attribute="test"></div>
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<div class="test" data-attribute="test"></div>
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<div class="test" data-attribute="test"></div>
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<div class="test" data-attribute="test"></div>
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<div class="test" data-attribute="test"></div>
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<div class="test" data-attribute="test"></div>
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<div class="test" data-attribute="test"></div>
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<div class="test" data-attribute="test"></div>
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<div class="test" data-attribute="test"></div>
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<div class="test" data-attribute="test"></div>
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<div class="test" data-attribute="test"></div>
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<div class="test" data-attribute="test"></div>
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<div class="test" data-attribute="test"></div>
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<div class="test" data-attribute="test"></div>
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<div class="test" data-attribute="test"></div>
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<div class="test" data-attribute="test"></div>
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<div class="test" data-attribute="test"></div>
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<div class="test" data-attribute="test"></div>
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<div class="test" data-attribute="test"></div>
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<div class="test" data-attribute="test"></div>
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<div class="test" data-attribute="test"></div>
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<div class="test" data-attribute="test"></div>
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<div class="test" data-attribute="test"></div>
Tests:

  • data attribute - querySelectorAll

     
    var test = document.querySelectorAll('[data-attribute="test"]');

  • class name - querySelectorAll

     
    var test = document.querySelectorAll('.test');

  • class name - getElementsByClassName

     
    var test = document.getElementsByClassName('test');