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
for & forEach
// 1000000 items in array
const array = new Array(1000000).fill(0);
function f() {
for (let i = 0; i < array.length; i++) {
const item = array[i];
console.log(i, item);
}
}
function f2() {
array.forEach((item, i) => {
console.log(i, item);
});
}
Ready to run.
Test | Ops/sec | |
---|---|---|
for |
| ready |
forEach |
| ready |
You can edit these tests or add more tests to this page by appending /edit to the URL.