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

Run details:

User agent: Mozilla/5.0 (Windows NT 6.3; Win64; x64; rv:109.0) Gecko/20100101 Firefox/115.0

Browser: Firefox 115

Operating system: Windows 8.1

Device Platform: Desktop

Date tested: one year ago

Loop

15.8M/s

Map

13.2M/s

Loop push

11.1M/s

Array.from

6.3M/s

View exact numbers

Test name	Executions per second
✓ Loop	15,810,228 Ops/sec
Map	13,185,760 Ops/sec
Loop push	11,072,573 Ops/sec
Array.from	6,334,972 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)