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/6579774/whats-the-difference-between-substr0-1-or-charat0
<script>
a = "abcdefghijklmnopqrstuvwxyz";
</script>
Ready to run.
Test | Ops/sec | |
---|---|---|
substr(0,1) |
| ready |
charAt(0) |
| ready |
substr(10,1) |
| ready |
charAt(10) |
| ready |
str[0] |
| ready |
str[10] |
| ready |
You can edit these tests or add more tests to this page by appending /edit to the URL.