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

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64; rv:109.0) Gecko/20100101 Firefox/115.0

Browser: Firefox 115

Operating system: Linux

Device Platform: Desktop

Date tested: 2 years ago

Map

22.3M/s

Loop

18.8M/s

Loop push

12.8M/s

Array.from

9.5M/s

View exact numbers

Test name	Executions per second
✓ Map	22,348,086 Ops/sec
Loop	18,801,356 Ops/sec
Loop push	12,830,450 Ops/sec
Array.from	9,531,497 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)