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
Comparing use of prop in object
vs. typeof object !== 'undefined'
vs !(object.property)
window.checkObjectTestExample = { 'pronic': 42 };
delete window.checkObjectTestExample;
Ready to run.
Test | Ops/sec | |
---|---|---|
prop in object |
| ready |
typeof object |
| ready |
!(object.property) |
| ready |
You can edit these tests or add more tests to this page by appending /edit to the URL.