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
comparing two simple approaches to string searching in a list
<div id="result"></div>
var list = [],
result = false;
for (var i = 0; i < 50000; i++) {
var rand_string = '';
for (var j = 0; j < 6; j++) {
var seed = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890';
rand_string += seed[Math.floor(Math.random() * 62)];
}
list.push(rand_string);
}
list.push('stljsstljsstljsstljsstljsstljs');
document.getElementById('result').innerHTML = result.toString();
Ready to run.
Test | Ops/sec | |
---|---|---|
simple for each |
| ready |
test against join |
| ready |
indexOf |
| ready |
Array.some() |
| ready |
while |
| ready |
Substr |
| ready |
| ready | |
| ready |
You can edit these tests or add more tests to this page by appending /edit to the URL.