Run results for: Array.from vs map - MeasureThat.net

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36

Browser: Chrome 120

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Loop push

27.9M/s

Loop

6.3M/s

Map

5.4M/s

Array.from

958K/s

View exact numbers

Test name	Executions per second
✓ Loop push	27,852,042 Ops/sec
Loop	6,346,612 Ops/sec
Map	5,395,804 Ops/sec
Array.from	957,780 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)