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 few simple methods of randomly shuffling an array.
<script>
var array = [], len = 10000;
while(len--) {
array[len] = len;
}
function sortShuffle(arr) {
return arr.sort(function() { return Math.random() - 0.5; });
}
function indexShuffle(arr) {
var len = cur = arr.length,
newArr = new Array(len);
while(cur--) {
newArr[ Math.random() * len ] = arr[cur];
}
return newArr;
}
</script>
Ready to run.
Test | Ops/sec | |
---|---|---|
sort shuffle |
| ready |
index shuffle |
| ready |
You can edit these tests or add more tests to this page by appending /edit to the URL.