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 if browser is WebKit (v3)

Revision 3 of this benchmark created by Blixt on November 3, 2010

Preparation HTML

<script>
  var ua = navigator.userAgent,
      res;
</script>

Test runner

Ready to run.

Testing in
Test		Ops/sec
RegExp	`res = RegExp(' AppleWebKit/').test(ua);`	ready
indexOf	`res = ua.indexOf(' AppleWebKit/') !== -1;`	ready
Failing RegExp (fair)	`res = RegExp(' ArganWebKit/').test(ua);`	ready
Failing indexOf (fair)	`res = ua.indexOf(' ArganWebKit/') !== -1;`	ready

Revisions

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

Revision 1: published by Blixt on November 3, 2010
Revision 3: published by Blixt on November 3, 2010