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
var valueString = "" + new Date().valueOf();
console.log('Number', Number(valueString));
console.log('parseInt', parseInt(valueString));
console.log('parseInt, 10', parseInt(valueString, 10));
console.log('plus', +valueString);
console.log('bitwise', valueString >> 0);
console.log('multiplie', valueString * 1)
console.log('not not', ~~valueString)
console.log('pipe 0', valueString | 0)
Ready to run.
Test | Ops/sec | |
---|---|---|
parseInt |
| ready |
pipe 0 |
| ready |
multiplie |
| ready |
Number |
| ready |
plus |
| ready |
bitwise |
| ready |
not not |
| ready |
parseInt, 10 |
| ready |
You can edit these tests or add more tests to this page by appending /edit to the URL.