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
Test case created to help me make my point on Stack Overflow.
<script src="//ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script>
<script>
var $container = $('<div/>').append(Array(100).join('<a></a>')).append(Array(100).join('<a class="foo"></a>'));
</script>
Ready to run.
Test | Ops/sec | |
---|---|---|
Using the “attribute not equal to” selector (will fail for multiple classes) |
| ready |
Using .not() |
| ready |
Using the :not() selector |
| ready |
Using .filter(':not(.foo)') |
| ready |
You can edit these tests or add more tests to this page by appending /edit to the URL.