jQuery is() vs nodeName.tolowercase

JavaScript performance comparison

Revision 5 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')[0],
      result;
</script>

Preparation code output

Test runner

Warning! For accurate results, please disable Firebug before running the tests. (Why?)

Java applet disabled.

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

Compare results of other browsers

Revisions

You can edit these tests or add even more tests to this page by appending /edit to the URL. Here’s a list of current revisions for this page:

0 comments

Add a comment