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

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/145.0.0.0 Safari/537.36

Browser: Chrome 145

Operating system: Windows

Device Platform: Desktop

Date tested: 4 months ago

Test name	Executions per second
Array.from	20809.7 Ops/sec
Map	489536.8 Ops/sec
Loop	1298604.5 Ops/sec
Loop push	291527.7 Ops/sec
Array.from and Map	21334.9 Ops/sec

Tests:

Array.from
Array.from({ length: 1000 }, i => i)
Map
new Array(1000).map(i => i);
Loop
const arr = new Array(1000); for (let i = 0; i < 1000; i++) arr[i] = i
Loop push
const arr = [] for (let i = 0; i < 1000; i++) arr.push(i)
Array.from and Map
Array.from({ length: 1000 }).map(i => i);