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.random vs Date.now vs new Date (v3)

Revision 3 of this benchmark created on June 17, 2014

Test runner

Ready to run.

Testing in
Test		Ops/sec
Math.random	`Math.random()`	ready
Date.now	`Date.now()`	ready
new Date	`new Date`	ready
+new Date	`+new Date`	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 3, 2013
Revision 3: published on June 17, 2014
Revision 4: published on February 13, 2015