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
function resizeFill(x, n, vd) {
var X = x.length; x.length = n;
if (n>X) x.fill(vd, X);
}
function resizeLoop(x, n, vd) {
var X = x.length;
for (var i=X; i<n; ++i)
x[i] = vd;
x.length = n;
}
var x = [];
for (var i=0; i<1000; ++i)
x[i] = Math.random();
Ready to run.
Test | Ops/sec | |
---|---|---|
Resize using fill() |
| ready |
Resize using loop |
| ready |
You can edit these tests or add more tests to this page by appending /edit to the URL.