Run results for: Initializing array with map function - JS version of Python list comprehension

Run details:

User agent: Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0.0.0 Mobile Safari/537.36

Browser: Chrome Mobile 130

Operating system: Android

Device Platform: Mobile

Date tested: 15 days ago

Script Preparation code:

var n = 100000; // 100k
function filler(v, i) {
    return i ** 2;
}

Tests:

Spread operator
[...Array(n).keys()].map(filler);
Array apply
Array.apply(null, { length: n }).map(filler);
Array from
Array.from({ length: n }, filler);
Array fill
Array(n).fill(undefined).map(filler)
For loop push
const arr = []; for (let i = 0; i < n; i++) { arr.push(filler(null, i)); }