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

replace string vs regex

Benchmark created on April 14, 2011

Test runner

Ready to run.

Testing in
Test		Ops/sec
Regex	`"#tab".replace(/#/, "")`	ready
String	`"#tab".replace("#", "")`	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 14, 2011
Revision 2: published by harth on June 6, 2011
Revision 3: published by harth on June 7, 2011
Revision 4: published on July 25, 2011
Revision 5: published on August 13, 2011
Revision 6: published on April 16, 2012
Revision 7: published by Francisc on January 23, 2013
Revision 8: published by Hans on January 30, 2013
Revision 9: published on January 15, 2015