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

parseFloat vs parseInt (v3)

Revision 3 of this benchmark created on October 3, 2011

Test runner

Ready to run.

Testing in
Test		Ops/sec
parseFloat	`var f = parseFloat("3.33");`	ready
parseInt	`var i = parseInt("3.33*100", 10) / 100;`	ready
*1	`var i = "3.33" * 1;`	ready
+	`var i = +"3.33";`	ready

Revisions

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

Revision 1: published on July 18, 2011
Revision 3: published on October 3, 2011