getElementsByClassName VS querySelectorAll (v125)

Revision 125 of this benchmark created by Chad on

Preparation HTML

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.8.1/jquery.min.js">
</script>
<div>
  <ul>
    <li>
      <a href="#" name="name" class="classname classname2">item 1</a>
    </li>
    <li>
      <a href="#" name="name" class="classname classname2">item 2</a>
    </li>
    <li>
      <a href="#" name="name" class="classname classname2">item 3</a>
    </li>
    <li>
      <a href="#" name="name" class="classname classname2">item 4</a>
    </li>
    <li>
      <a href="#" name="name" class="classname classname2">item 5</a>
    </li>
    <li>
      <a href="#" name="name" class="classname classname2">item 6</a>
    </li>
    <li>
      <a href="#" name="name" class="classname">item 7</a>
    </li>
    <li>
      <a href="#" name="name" class="classname">item 8</a>
    </li>
    <li>
      <a href="#" name="name" class="classname">item 9</a>
    </li>
    <li>
      <a href="#" name="name" class="classname">item 10</a>
    </li>
  </ul>
</div>
<script>
  var nodes;
</script>

Setup

function filterElementListByClassName(list, excludes) {
      var result = [];
  
      for (var i = 0; i < list.length; ++i) {
          if (!(list[i].classList.contains(excludes))) {
              result.push(list[i]);
          }
      }
  }

Test runner

Ready to run.

Testing in
TestOps/sec
getElementsByClassName
nodes = Array.prototype.slice.call(
     document.getElementsByClassName('classname')
).filter(function (elm) {
    return !(elm.classList.contains('classname2'));
});
ready
querySelectorAll
nodes = document.querySelectorAll('.classname:not(.classname2)');
ready
jQuery $(.class)
nodes = $(".classname").not('.classname2');
ready
getElementsByClassName - loopFn
nodes = document.getElementsByClassName('classname');
nodes = filterElementListByClassName(nodes, 'classname2');
ready

Revisions

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