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
Comparison between the different ways of checking if a value is an array.
var A = [1, 2, 3, 4, 5],
B = ['a', 'b', 'c', 'd', 'e'],
C = [[1, 2], [3, 4], [5, 6], [7, 8], [9, 10]];
Ready to run.
Test | Ops/sec | |
---|---|---|
Instance of Array A |
| ready |
Instance of Array B |
| ready |
Instance of Array C |
| ready |
IsArray A |
| ready |
IsArray B |
| ready |
IsArray C |
| ready |
Constructor of A |
| ready |
Constructor of B |
| ready |
Constructor of C |
| ready |
Check type and then use constructor on A |
| ready |
Check type and then use constructor on B |
| ready |
Check type and then use constructor on C |
| ready |
You can edit these tests or add more tests to this page by appending /edit to the URL.