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
There are two ways (I know of) to cast values to number in JS:
This test compares the speed of each.
var stringNumbers = [];
var i;
for (i = 0; i < 10; ++i) {
stringNumbers.push("" + Math.floor(Math.random()*100));
}
var numbers = [];
Ready to run.
Test | Ops/sec | |
---|---|---|
unary |
| ready |
parseInt |
| ready |
parseFloat |
| ready |
You can edit these tests or add more tests to this page by appending /edit to the URL.