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

Math.Floor or parseInt or |0 or Typecast (v4)

Revision 4 of this benchmark created on October 25, 2013

Test runner

Ready to run.

Testing in
Test		Ops/sec
Math.Floor	`Math.floor("12.22")`	ready
parseInt	`parseInt("12.22", 10)`	ready
\|0	`"12.22"\|0`	ready
Math.trunc	`Math.trunc("12.22") //FirefoxOnly ATM`	ready

Revisions

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

Revision 4: published on October 25, 2013