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
function fastmap(data, fn) {
if (data.length === 0) {
return []
} else {
let output = new Array(data.length)
for (let i = 0; i < data.length; i++) {
output[i] = fn(data[i])
}
return output
}
}
let data = new Array(10)
for (let i = 0; i < data.length; i++) {
let inner = new Array(i)
for (let j = 0; j < inner.length; j++) {
inner[j] = j
}
data[i] = inner
}
function numberEl(n) {
return {
type: 'div',
children: ['item' + n]
}
}
Ready to run.
Test | Ops/sec | |
---|---|---|
nested map closure |
| ready |
fastmap no closure |
| ready |
You can edit these tests or add more tests to this page by appending /edit to the URL.