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

indexof vs regex for email

Benchmark created by Glade on April 9, 2015

Setup

var rx = /.*@.*\..*/;
  var str = "a@b.c";

Test runner

Ready to run.

Testing in
Test		Ops/sec
indexOf	`str.indexOf("@") > -1;`	ready
regex	`str.match(rx);`	ready

Revisions

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

Revision 1: published by Glade on April 9, 2015