Run results for: js array copy speed comparison... - MeasureThat.net

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/107.0.0.0 Safari/537.36 Edg/107.0.1418.52

Browser: Chrome 107

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
map	30665094.0 Ops/sec
array.from	4084739.2 Ops/sec
...	47131308.0 Ops/sec
slice	79175512.0 Ops/sec

Tests:

map
const arr = [1,2,3,4,5] const newArr = arr.map(e=>e)
array.from
const arr = [1,2,3,4,5] const newArr = Array.from(arr)
...
const arr = [1,2,3,4,5] let newArr = [...arr];
slice
const arr = [1,2,3,4,5] const newArr = arr.slice()