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
const charset = 'abcdefghijklmnopqrstuvwxyz';
const length = 1000;
function randomString() {
const charSize = charset.length;
let text = '';
for (let i = 0; i < length; i++)
text += charset.charAt(Math.floor(Math.random() * charSize));
return text;
}
function createRandomString() {
let result = "";
const randomArray = new Uint8Array(length);
crypto.getRandomValues(randomArray);
const size = charset.length;
for (let i = 0; i < length; i++){
result += charset[randomArray[i] % size];
}
return result;
}
Ready to run.
Test | Ops/sec | |
---|---|---|
randomString |
| ready |
crypto.getRandomValues() |
| ready |
You can edit these tests or add more tests to this page by appending /edit to the URL.