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

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:121.0) Gecko/20100101 Firefox/121.0

Browser: Firefox 121

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Loop

43.2M/s

Map

39.5M/s

Loop push

37.9M/s

Array.from

19.3M/s

View exact numbers

Test name	Executions per second
✓ Loop	43,211,708 Ops/sec
Map	39,463,512 Ops/sec
Loop push	37,914,664 Ops/sec
Array.from	19,263,280 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)