contains() vs parentNode

JavaScript performance comparison

Revision 7 of this test case created by test

Preparation code

<div id="divElement"></div>
      
<script>
Benchmark.prototype.setup = function() {
  function containsTest(el) {
    return (el === document.body) ? false : document.body.contains(el);
  }
  function getByIdTest()
  {
    return document.getElementById('divElement') ? true : false;
  }
  function parentNodeTest(el) {
    if (el.parentNode) {
      return true;
    } else {
      return false;
    }
  }

};
</script>

Preparation code output

<div id="divElement"></div>

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Testing in CCBot 2.0.0 / Other 0.0.0
Test Ops/sec
contains()
var element = document.getElementById('divElement');
containsTest(element);
pending…
parentNode
var element = document.getElementById('divElement');
parentNodeTest(element);
pending…
byId
getByIdTest();
pending…

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Revisions

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