getElementsByClassName vs jQuery('className')
JavaScript performance comparison
Info
Fix the test to return a jQuery object. Add IE8 compatibility test
Preparation code
<script src="//ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script>
<script>
if (!document.getElementsByClassName)
{
document.getElementsByClassName = function(className)
{
return this.querySelectorAll("." + className);
};
Element.prototype.getElementsByClassName = document.getElementsByClassName;
}
</script>
<div class="test"></div>
Preparation code output
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| Test | Ops/sec | |
|---|---|---|
Use getElementsByClassName return jQuery collection |
|
pending… |
use sizzler return jQuery collection |
|
pending… |
getElementsByClassName only |
|
pending… |
querySelectorAll |
|
pending… |
use querySelectorAll to return a jquery collection |
|
pending… |
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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:
- Revision 1: published by Ilya Pyatin
- Revision 2: published by worg
- Revision 3: published by Sean
- Revision 4: published
- Revision 5: published by Sean
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