jQuery("#id")
JavaScript performance comparison
Info
The duplicate id optimization in jQuery.fn.init has been removed. Check the loss.
Preparation code
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js">
</script>
<script>
var $1_7_2 = jQuery.noConflict();
</script>
<script src="https://dl.dropbox.com/u/6407061/jQuery/sizzle_optimize/jquery.js">
</script>
<script>
var $git = jQuery.noConflict();
</script>
<div id="test" class="test">
<div id="child">
</div>
</div>
<div class="test">
</div>
<div class="test">
</div>
<div class="test">
</div>
<div class="test">
</div>
<div class="test">
</div>
<script>
Benchmark.prototype.setup = function() {
var $1_7_2test = $1_7_2("#test");
var $gittest = $git("#test");
};
</script>
Preparation code output
Test runner
Warning! For accurate results, please disable Firebug before running the tests. (Why?)
Java applet disabled.
| Test | Ops/sec | |
|---|---|---|
1.7.2 id |
|
pending… |
git id |
|
pending… |
1.7.2 element id |
|
pending… |
git element id |
|
pending… |
1.7.2 class |
|
pending… |
git class |
|
pending… |
document.getElementById() |
|
pending… |
|
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 3: published by Timmy Willison
- Revision 4: published by Timmy Willison
- Revision 6: published by Timmy Willison
- Revision 7: published
- Revision 8: published
- Revision 11: published by Jens
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