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

Run details:

User agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:120.0) Gecko/20100101 Firefox/120.0

Browser: Firefox 120

Operating system: Ubuntu

Device Platform: Desktop

Date tested: 2 years ago

Loop

23.3M/s

Map

21.4M/s

Loop push

13.9M/s

Array.from

9.9M/s

View exact numbers

Test name	Executions per second
✓ Loop	23,267,448 Ops/sec
Map	21,402,080 Ops/sec
Loop push	13,925,193 Ops/sec
Array.from	9,947,250 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)