descend-from-id-vs-select-and-find

JavaScript performance comparison

Test case created

Preparation code

<div id="#myId">
  <span>
    Some content
  </span>
</div>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js">
</script>

Preparation code output

Some content

Test runner

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

Java applet disabled.

Testing in unknown unknown
Test Ops/sec
Descend from #id
$('#myId span')
pending…
Select then find
$('#myId').find('span')
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:

1 comment

Puah Hock Leng commented :

Tested with jQuery 2.0, although the sizzle engine in jqeury core has been improved, there is still performance difference between using pure selector and using find().

Comment form temporarily disabled.

Add a comment