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

RexEx Match vs indexOf

Benchmark created on October 4, 2011

Preparation HTML

<script>
  var scheme = 'http';
</script>

Test runner

Ready to run.

Testing in
Test		Ops/sec
RegEx Match	`scheme && !scheme.match(/https?/i)`	ready
indexOf	`scheme && scheme.toLowerCase().indexOf('http') !== 0`	ready

Revisions

You can edit these tests or add more tests to this page by appending /edit to the URL.

Revision 1: published on October 4, 2011