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
a=Object.create(null);
b=Object.create(null);
b.a=1;
b.b=2;
b.c=3;
b.d=4;
function forIn(y) {
for (x in y) {
return true;
}
return false;
}
function objectKeys(y) {
return !!Object.keys(y).length;
}
Ready to run.
Test | Ops/sec | |
---|---|---|
for-in |
| ready |
keys |
| ready |
You can edit these tests or add more tests to this page by appending /edit to the URL.