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

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:126.0) Gecko/20100101 Firefox/126.0

Browser: Firefox 126

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Loop

30.2M/s

Map

27.7M/s

Loop push

26.6M/s

Array.from

13.4M/s

View exact numbers

Test name	Executions per second
✓ Loop	30,172,390 Ops/sec
Map	27,721,718 Ops/sec
Loop push	26,585,522 Ops/sec
Array.from	13,351,497 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)