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

Browser optimizations test

Benchmark created by Trey Keown on December 31, 2012

Test runner

Ready to run.

Testing in
Test		Ops/sec
baseline	`;`	ready
empty self-executing function	`(function(){})();`	ready
setting to undefined, var	`var foo = undefined;`	ready
setting to undefined, no var	`foo = undefined;`	ready
baseline assignment	`var foo = true;`	ready

Revisions

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

Revision 1: published by Trey Keown on December 31, 2012