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
Checking ways to iterate objects...
const obj = Array.from({length: 500}, (a, i) => String.fromCharCode(i+50)).reduce((a, v, i) => {a[v] = i; return a}, {});
function doStuff(key, value){}
Ready to run.
Test | Ops/sec | |
---|---|---|
For...in |
| ready |
For of keys (separate array) |
| ready |
For of keys (inline array) |
| ready |
For of getOwnPropertyNames (separate array) |
| ready |
For of getOwnPropertyNames (inline array) |
| ready |
For of entries (separate array) |
| ready |
For of entries (inline array) |
| ready |
You can edit these tests or add more tests to this page by appending /edit to the URL.