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
http://stackoverflow.com/questions/11818896/how-do-i-make-an-anchored-regex-match-in-the-middle-of-a-string-in-javascript (edit 1) bugfix: don't substr in case 1. The RegExp moves the starting position.
var target = "foobar barse";
var str_match = "bar";
var pre_regex = /^bar/;
Ready to run.
Test | Ops/sec | |
---|---|---|
compute |
| ready |
substr+pre |
| ready |
You can edit these tests or add more tests to this page by appending /edit to the URL.