hasClass-vs-is

JavaScript performance comparison

Revision 18 of this test case created by

Preparation code

<span class="class1">Element</span>
<span class="class2">Element</span>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script>
      
<script>
Benchmark.prototype.setup = function() {
  var element = $('span');

};
</script>

Preparation code output

<span class="class1">Element</span> <span class="class2">Element</span>

Test runner

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

Java applet disabled.

Testing in CCBot 2.0.0 / Other 0.0.0
Test Ops/sec
hasClass
if( element.hasClass('class1') ) {
}
pending…
is
if( element.is('.class1') ) {
}
pending…
match
if( element.attr('class').match(/class1/) ) {
}
pending…
match + word boundaries
if( element.attr('class').match(/\bclass1\b/) ) {
}
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.

0 Comments

Element Element