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.
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https://jsperf.com/negative-modulo/2
Can be accessed at:
https://jsperf.app/negative-modulo/2
Checking performance differences between Math.abs and using Bitwise manipulation.
<script>
var nums = [];
for (var i = 0; i < 200; i++) {
nums.push(Math.random() * 100);
}
function abs(x) {
return (x < 0 ? -x : x);
}
var m = Math;
var mAbs = Math.abs;
</script>
Ready to run.
Test | Ops/sec | |
---|---|---|
Math.abs() |
| ready |
bitwise |
| ready |
Cached Math |
| ready |
Cached Math.abs |
| ready |
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