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

string vs number (v2)

Revision 2 of this benchmark created on February 8, 2024

Test runner

Ready to run.

Testing in
Test		Ops/sec
number	`new Date(1707397634833);`	ready
iso string	`new Date('2024-02-08T13:07:30.474Z');`	ready
string	`new Date('Thu Feb 08 2024 14:08:49 GMT+0100 (Central European Standard Time)')`	ready
gmt string	`new Date('Thu, 08 Feb 2024 13:09:33 GMT')`	ready

Revisions

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

Revision 1: published on February 8, 2024
Revision 2: published on February 8, 2024