jsPerf.app is an online JavaScript performance benchmark test runner & jsperf.com mirror. It is a complete rewrite in homage to the once excellent jsperf.com now with hopefully a more modern & maintainable codebase.
jsperf.com URLs are mirrored at the same path, e.g:
https://jsperf.com/negative-modulo/2
Can be accessed at:
https://jsperf.app/negative-modulo/2
Checking if nodeLists get internally cached, or if the dom tree must be traversed again on each iteration
<div>
<ul>
<li>
<a href="#">item 1</a>
</li>
<li>
<a href="#">item 2</a>
</li>
<li>
<a href="#">item 3</a>
</li>
<li>
<a href="#">item 1</a>
</li>
<li>
<a href="#">item 2</a>
</li>
<li>
<a href="#">item 3</a>
</li>
<li>
<a href="#">item 1</a>
</li>
<li>
<a href="#">item 2</a>
</li>
<li>
<a href="#">item 3</a>
</li>
<li>
<a href="#">item 1</a>
</li>
<li>
<a href="#">item 2</a>
</li>
<li>
<a href="#">item 3</a>
</li>
<li>
<a href="#">item 1</a>
</li>
<li>
<a href="#">item 2</a>
</li>
<li>
<a href="#">item 3</a>
</li>
<li>
<a href="#">item 1</a>
</li>
<li>
<a href="#">item 2</a>
</li>
<li>
<a href="#">item 3</a>
</li>
<li>
<a href="#">item 1</a>
</li>
<li>
<a href="#">item 2</a>
</li>
<li>
<a href="#">item 3</a>
</li>
<li>
<a href="#">item 1</a>
</li>
<li>
<a href="#">item 2</a>
</li>
<li>
<a href="#">item 3</a>
</li>
<li>
<a href="#">item 1</a>
</li>
<li>
<a href="#">item 2</a>
</li>
<li>
<a href="#">item 3</a>
</li>
<li>
<a href="#">item 1</a>
</li>
<li>
<a href="#">item 2</a>
</li>
<li>
<a href="#">item 3</a>
</li>
</ul>
</div>
Ready to run.
Test | Ops/sec | |
---|---|---|
querySelectorAll |
| ready |
getElementsByTagName |
| ready |
You can edit these tests or add more tests to this page by appending /edit to the URL.