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
A variant of http://jsperf.com/hasownproperty-vs-in-vs-undefined/12 just without the "var undefined" in the test code. This changes the picture for all the "undefined" dependent tests.
var Iobj = {
SUPPORT_ACTIONS: 0x1
};
var obj = {
actions: true,
support: Iobj.SUPPORT_ACTIONS
};
var foo = "actions";
Ready to run.
Test | Ops/sec | |
---|---|---|
hasOwnProperty |
| ready |
in |
| ready |
undefined |
| ready |
undefined cmp |
| ready |
var in |
| ready |
undefined cmp (dynamic) |
| ready |
undefined dynamic |
| ready |
truthy |
| ready |
null |
| ready |
falsey |
| ready |
falsey dynamic |
| ready |
double!! |
| ready |
You can edit these tests or add more tests to this page by appending /edit to the URL.