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Run results for:
Clone array
Array.from vs spread vs [].slice.call
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<iframe src="https://measurethat.net/Embed?id=586688" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:134.0) Gecko/20100101 Firefox/134.0
Browser:
Firefox 134
Operating system:
Mac OS X 10.15
Device Platform:
Desktop
Date tested:
one year ago
[].slice.call
2.1M/s
Spread
653K/s
Array.from
608K/s
View exact numbers
Test name
Executions per second
✓
[].slice.call
2,113,218 Ops/sec
Spread
653,185 Ops/sec
Array.from
608,474 Ops/sec
Tests:
Array.from
const arr = new Array(100) for (let i = 0; i < arr.length; i++) { arr[i] = i } const clone = Array.from(arr)
Spread
const arr = new Array(100) for (let i = 0; i < arr.length; i++) { arr[i] = i } const clone = [...arr]
[].slice.call
const arr = new Array(100) for (let i = 0; i < arr.length; i++) { arr[i] = i } const clone = [].slice.call(arr)