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

!==-1 (v2)

Revision 2 of this benchmark created on July 9, 2011

Test runner

Ready to run.

Testing in
Test		Ops/sec
~~	`~~'testinotesttest12345'.indexOf('t')`	ready
!== -1	`'testinotesttest12345'.indexOf('t') !== -1`	ready
!~	`!~'testinotesttest12345'.indexOf('t')`	ready

Revisions

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

Revision 1: published on April 23, 2011
Revision 2: published on July 9, 2011