Browser Diet - $(this).attr('id')
vs. this.id
JavaScript performance comparison
Preparation code
<a id="a" class="tests" href="#">a</a>
<a id="b" class="tests" href="#">b</a>
<a id="c" class="tests" href="#">c</a>
<a id="d" class="tests" href="#">e</a>
<a id="f" class="tests" href="#">f</a>
<a id="g" class="tests" href="#">g</a>
<a id="h" class="tests" href="#">h</a>
<a id="i" class="tests" href="#">i</a>
<a id="j" class="tests" href="#">j</a>
<a id="k" class="tests" href="#">k</a>
<a id="l" class="tests" href="#">l</a>
<a id="m" class="tests" href="#">m</a>
<a id="n" class="tests" href="#">n</a>
<a id="o" class="tests" href="#">o</a>
<a id="p" class="tests" href="#">p</a>
<a id="q" class="tests" href="#">q</a>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script>
<script>
$testList = $('.tests');
</script>
Preparation code output
<a id="a" class="tests" href="#">a</a>
<a id="b" class="tests" href="#">b</a>
<a id="c" class="tests" href="#">c</a>
<a id="d" class="tests" href="#">e</a>
<a id="f" class="tests" href="#">f</a>
<a id="g" class="tests" href="#">g</a>
<a id="h" class="tests" href="#">h</a>
<a id="i" class="tests" href="#">i</a>
<a id="j" class="tests" href="#">j</a>
<a id="k" class="tests" href="#">k</a>
<a id="l" class="tests" href="#">l</a>
<a id="m" class="tests" href="#">m</a>
<a id="n" class="tests" href="#">n</a>
<a id="o" class="tests" href="#">o</a>
<a id="p" class="tests" href="#">p</a>
<a id="q" class="tests" href="#">q</a>
Test runner
Warning! For accurate results, please disable Firebug before running the tests. (Why?)
Java applet disabled.
Test | Ops/sec | |
---|---|---|
jQuery's
.attr()
|
|
pending… |
Pure JavaScript
|
|
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.
- Revision 1: published Zeno Rocha
- Revision 2: published
- Revision 3: published
- Revision 4: published
- Revision 5: published Kowsalya
- Revision 6: published
- Revision 7: published Casey Flynn
- Revision 8: published Casey Flynn
- Revision 9: published Casey Flynn
- Revision 10: published
- Revision 11: published
- Revision 12: published
- Revision 13: published rage DNA
- Revision 14: published kanaya
- Revision 15: published kanaya
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