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
Measuring performance of removing the fraction off a float using three different methods, Math.floor(), parseInt() and a left shift (<<)
i = Math.random() * 10000;
i = undefined;
Ready to run.
| Test | Ops/sec | |
|---|---|---|
| Math.floor() | | ready |
| parseInt() | | ready |
| left shift | | ready |
| bitwise not | | ready |
| bitwise or | | ready |
You can edit these tests or add more tests to this page by appending /edit to the URL.