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
<script>
function whileLoop(number, targetLength) {
var output = number + '';
while (output.length < targetLength) {
output = '0' + output;
}
return output;
};
function arrayJoin(number, targetLength) {
if ((number = number + "").length < targetLength) {
return new Array((++targetLength) - number.length).join("0") + number;
} else {
return number;
}
}
</script>
Ready to run.
Test | Ops/sec | |
---|---|---|
while loop 1e5 |
| ready |
Array.join 1e5 |
| ready |
while loop 1e20 |
| ready |
Array.join 1e20 |
| ready |
You can edit these tests or add more tests to this page by appending /edit to the URL.