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
function countBits_string(n) {
return n.toString(2).split('1').length - 1;
}
function countBits_arithmetic(n) {
let count = 0;
for (let bn = BigInt(n); bn; bn &= bn - 1n) count++;
return count;
}
const random_int = () => Math.floor(Math.random() * Number.MAX_SAFE_INTEGER);
Ready to run.
Test | Ops/sec | |
---|---|---|
String Manipulation |
| ready |
Arithmetic |
| ready |
You can edit these tests or add more tests to this page by appending /edit to the URL.