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 which is faster for checking a flag: hasClass() or checking a data() attribute.
<script src="//ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script>
<div class="foo"></div>
<script>
var found = false;
$("body").addClass("foobar").data('blarg',true).attr("data-foo", "bar");
</script>
Ready to run.
Test | Ops/sec | |
---|---|---|
data |
| ready |
hasClass |
| ready |
| ready |
You can edit these tests or add more tests to this page by appending /edit to the URL.