Run results for: Array.from vs map

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 17_5 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) CriOS/125.0.6422.80 Mobile/15E148 Safari/604.1

Browser: Chrome Mobile iOS 125

Operating system: iOS 17.5

Device Platform: Mobile

Date tested: 2 years ago

Loop push

37.5M/s

Loop

13.6M/s

Array.from

10.0M/s

Map

3.5M/s

View exact numbers

Test name	Executions per second
✓ Loop push	37,545,376 Ops/sec
Loop	13,558,185 Ops/sec
Array.from	9,988,345 Ops/sec
Map	3,530,711 Ops/sec

Tests:

Array.from
Array.from({ length: 10 }, i => i)
Map
new Array(10).map(i => i);
Loop
const arr = new Array(10); for (let i = 0; i < 10; i++) arr[i] = i
Loop push
const arr = [] for (let i = 0; i < 10; i++) arr.push(i)