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>
var container = 'qwertyuiop';
var trues = ['', 'p', 'op', 'qwertyuiop'];
var falses = [' ', 'po', '1qwertyuiop'];
function test(endsWith) {
var i = 99999;
while (i--) {
trues.forEach(function(s) {
if (!endsWith.call(container, s)) {
throw new Error(s + ' FAILS!');
}
});
falses.forEach(function(s) {
if (endsWith.call(container, s)) {
throw new Error(s + ' FAILS!');
}
});
}
}
</script>
Ready to run.
Test | Ops/sec | |
---|---|---|
substring |
| ready |
lastIndexOf |
| ready |
"hard" |
| ready |
You can edit these tests or add more tests to this page by appending /edit to the URL.