jquery selector speed id vs class index (v115)

Revision 115 of this benchmark created by Denis on

Preparation HTML

<div id="container">
  
<ul>
    <li class="">2</li>
    <li class="">3</li>
    <li class="">4</li>
    <li >1</li>
  </ul><ul>
    <li class="">2</li>
    <li class="">3</li>
    <li class="">4</li>
    <li >1</li>
  </ul><ul id='ulId'>
    <li class="unique_class">2</li>
    <li class="multi_class">3</li>
    <li class="multi_class">4</li>
    <li id="byID">1</li>
  </ul><ul>
    <li class="">2</li>
    <li class="">3</li>
    <li class="">4</li>
    <li >1</li>
  </ul>
</div><script src="//ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script>

Test runner

Ready to run.

Testing in
TestOps/sec
$('#target')
$('#byID').html('1');
ready
$('.target') only 1 class on page
$('.unique_class').html('2');
ready
$('.target').first()
$('.multi_class').first().html('3');
ready
$('.target:eq(1)')
$('.multi_class:eq(1)').html('4');
ready
$('.target', '#target').
$('.multi_class', '#container').first().html('5');
ready
$('.target', '#ulId').
$('.multi_class', '#ulId').html('5');
ready

Revisions

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