getElementsByClassName VS querySelectorAll

JavaScript performance comparison

Revision 148 of this test case created by Anonym

Preparation code

<div>
  <ul>
    <li><a href="#" name="name" class="classname">item 1</a></li>
  </ul>
</div>
<script>
  var node;
</script>
    

Preparation code output

<div> <ul> <li><a href="#" name="name" class="classname">item 1</a></li> </ul> </div>

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Testing in CCBot 2.0.0 / Other 0.0.0
Test Ops/sec
getElementsByClassName
node = document.getElementsByClassName('classname')[0];
pending…
querySelectorAll
node = document.querySelector('.classname');
pending…

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Revisions

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