jQuery is() vs nodeName.tolowercase

JavaScript performance comparison

Revision 2 of this test case created

Preparation code

<script src="//ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js">
</script>
<img>
<script>
  var $img = $('img');
  var img = $img[0],
      result;
</script>

Preparation code output

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Testing in unknown unknown
Test Ops/sec
is
result = $img.is('img');
pending…
nodeName
result = img.nodeName.toLowerCase() === 'img';
pending…

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