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
Show the speed difference between using $(this).attr('id') and this.id
<ul id="thisOne">
<li></li>
<li id="li1"></li>
<li></li>
<li id="li2"></li>
<li></li>
<li id="li3"></li>
<li></li>
<li id="li4"></li>
<li></li>
<li id="li5"></li>
<li></li>
<li id="li6"></li>
</ul>
<script src="//ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script>
Ready to run.
Test | Ops/sec | |
---|---|---|
$(this).attr('id'); |
| ready |
this.id; |
| ready |
You can edit these tests or add more tests to this page by appending /edit to the URL.