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 ifAssign(x) { /* assign default value if x has not been passed as arg */
if (!x) {
x = {};
}
}
function ifAssignEquals(x) { /* assign default value if x has not been passed as arg */
if (x === undefined) {
x = {};
}
}
function ifAssignTypeof(x) { /* assign default value if x has not been passed as arg */
if (typeof x === "undefined") {
x = {};
}
}
function orAssign(x) { /* assign default value if x has not been passed as arg */
var x = x || {};
}
</script>
Ready to run.
Test | Ops/sec | |
---|---|---|
ifAssign |
| ready |
ifAssignEquals |
| ready |
ifAssignTypeof |
| ready |
orAssign |
| ready |
You can edit these tests or add more tests to this page by appending /edit to the URL.