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

```
const count = 1e6;
const data = Array.from({length: count}).map(() => Math.random());
const simpleSum = (data) => {
let sum = 0;
for(let i=0; i < data.length; i += 1) {
sum += data[i];
}
return sum;
}
const sumByTwo = (data) => {
let sum = 0
for(let i=0; i < data.length; i += 2) {
sum += data[i] + data[i + 1];
}
return sum;
}
const sumByFour = (data) => {
let sum = 0
for(let i=0; i < data.length; i += 4) {
sum += data[i]
+ data[i + 1]
+ data[i + 2]
+ data[i + 3];
}
return sum;
}
const sumByTen = (data) => {
let sum = 0;
for(let i=0; i < data.length; i += 10) {
sum += data[i] + data[i + 1]
+ data[i + 2] + data[i + 3]
+ data[i + 4] + data[i + 5]
+ data[i + 5] + data[i + 7]
+ data[i + 8] + data[i + 9];
}
return sum;
};
```

Ready to run.

Test | Ops/sec | |
---|---|---|

Regular |
| ready |

By Two |
| ready |

By Four |
| ready |

By Ten |
| ready |

You can edit these tests or add more tests to this page by appending /edit to the URL.

- Revision 1: published on
- Revision 2: published on
- Revision 3: published on
- Revision 4: published on
- Revision 5: published on
- Revision 6: published on