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
Testing/profiling the code patterns from the Script Junkie article "(pre)Maturely Optimize Your JavaScript"
http://msdn.microsoft.com/en-us/scriptjunkie/gg622887.aspx
Snippet comparison #5
<script>
if (!Object.create) {
Object.create = function(o) {
function F() {}
F.prototype = o;
return new F();
};
}
var foo = {
fun: "weee!"
},
bar = Object.create(foo),
baz = Object.create(bar),
_fun = baz.fun,
res;
</script>
Ready to run.
Test | Ops/sec | |
---|---|---|
full chain lookup |
| ready |
cached chain lookup |
| ready |
You can edit these tests or add more tests to this page by appending /edit to the URL.