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Run results for:
js array copy speed comparison
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=573164" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (iPhone; CPU iPhone OS 17_7_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) CriOS/131.0.6778.103 Mobile/15E148 Safari/604.1
Browser:
Chrome Mobile iOS 131
Operating system:
iOS 17.7.1
Device Platform:
Mobile
Date tested:
one year ago
Test name
Executions per second
map
21055548.0 Ops/sec
array.from
41795576.0 Ops/sec
for loop
62599604.0 Ops/sec
foreach
41307140.0 Ops/sec
slice
81699400.0 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)
for loop
const arr = [1,2,3,4,5] let newArr = []; for(let i = 0; i < arr.length; i++) { newArr[i] = arr[i]; }
foreach
const arr = [1,2,3,4,5] let newArr = [] arr.forEach(e => { newArr.push(e) })
slice
const arr = [1,2,3,4,5] const newArr = arr.slice()