getElementById vs. querySelector
JavaScript performance comparison
Info
Compare the speed of getElementById to querySelector
Preparation code
<p>Foo</p>
<p>Foo</p>
<p>Foo</p>
<p>Foo</p>
<p>Foo</p>
<p>Foo
<p>Foo</p>
<p>Foo</p>
<p>Foo</p>
<p>Foo</p>
<p>Foo</p>
<p>Foo</p>
<p id="foo">Foo</p>
</p>
<p>Foo</p>
<p>Bar</p>
<p>Foo</p>
<p>Bar</p>
<p>Foo</p>
<p>Bar</p>
<p>Foo</p>
<p>Bar</p>
<p>Foo</p>
<p>Bar</p>
<p>Foo</p>
<p>Bar</p>
<p>Baz</p>
<p>Foo</p>
<p>Foo</p>
<p>Foo
<p>Foo</p>
<p>Bar</p>
<p>Baz</p>
<p>Foo</p>
<p>Bar
<p id="bar">Bar</p>
</p>
</p>
<p>Baz</p>
<p>Foo</p>
<p>Bar</p>
<p>Baz</p>
<p>Foo</p>
<p>Bar</p>
<p>Baz</p>
<p>Foo</p>
<p>Bar</p>
<p>Baz</p>
<p>Foo</p>
<p>Bar</p>
<p>Baz</p>
<p>Foo</p>
<p>Bar</p>
<p>Baz</p>
<p>Foo</p>
<p>Bar</p>
<p>Baz</p>
<p>Foo</p>
<p>Bar</p>
<p>Baz</p>
<p id="baz">Baz</p>
<p>Foo</p>
<p>Bar</p>
<p>Baz</p>
<p>Foo</p>
<p>Bar</p>
<p>Baz</p>
<p>Foo</p>
<p>Bar</p>
<p>Baz</p>
<p>Foo</p>
<p>Bar</p>
<p>Baz</p>
<p>Foo</p>
<p>Bar</p>
<p>Baz</p>
<p>Foo</p>
<p>Bar</p>
<p>Baz</p>
Preparation code output
Foo
Foo
Foo
Foo
Foo
Foo
Foo
Foo
Foo
Foo
Foo
Foo
Foo
Foo
Bar
Foo
Bar
Foo
Bar
Foo
Bar
Foo
Bar
Foo
Bar
Baz
Foo
Foo
Foo
Foo
Bar
Baz
Foo
Bar
Bar
Baz
Foo
Bar
Baz
Foo
Bar
Baz
Foo
Bar
Baz
Foo
Bar
Baz
Foo
Bar
Baz
Foo
Bar
Baz
Foo
Bar
Baz
Baz
Foo
Bar
Baz
Foo
Bar
Baz
Foo
Bar
Baz
Foo
Bar
Baz
Foo
Bar
Baz
Foo
Bar
Baz
Test runner
Warning! For accurate results, please disable Firebug before running the tests. (Why?)
Java applet disabled.
| Test | Ops/sec | |
|---|---|---|
getElementById |
|
pending… |
querySelector |
|
pending… |
jQuery Test |
|
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:
- Revision 1: published by Ara Pehlivanian
- Revision 3: published
- Revision 4: published
- Revision 5: published
- Revision 6: published
- Revision 7: published
- Revision 8: published by vamp
- Revision 9: published
- Revision 10: published
- Revision 11: published
- Revision 12: published
- Revision 14: published
- Revision 15: published by Name64
- Revision 16: published
- Revision 17: published
- Revision 18: published
- Revision 19: published
- Revision 20: published
- Revision 21: published
- Revision 22: published
- Revision 23: published
- Revision 24: published
- Revision 25: published
- Revision 26: published
- Revision 27: published
- Revision 28: published by dc
- Revision 30: published
- Revision 31: published
- Revision 32: published
- Revision 33: published by AjiTae
- Revision 34: published by AjiTae
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