ClassList versus ClassName

JavaScript performance comparison

Revision 12 of this test case created by

Preparation code

<div id="foo"
></div>
<script>
 fooEl = document.getElementById('foo');
</script><script src="https://ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script>
      
<script>
Benchmark.prototype.setup = function() {
  fooEl.className = 'aaaa bbbb cccc dddd';
  jFooEl = jQuery(fooEl);

};
</script>

Preparation code output

<div id="foo" ></div> <script src="https://ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script>

Test runner

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Testing in CCBot 2.0.0 / Other 0.0.0
Test Ops/sec
Raw Class Name
fooEl.className = '';
fooEl.className += 'aaaa';
fooEl.className += ' bbbb';
fooEl.className += ' cccc';
fooEl.className += ' dddd';
pending…
Class List
fooEl.className = '';
fooEl.classList.add('aaaa');
fooEl.classList.add('bbbb');
fooEl.classList.add('cccc');
fooEl.classList.add('dddd');
pending…

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