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Run results for:
new Array from vs slice vs push vs index vs spread
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=538060" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.36
Browser:
Chrome 127
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
one year ago
Array.push
2.2M/s
Array[index]
1.9M/s
Array.slice
697K/s
Array spread
662K/s
Array.from
603K/s
View exact numbers
Test name
Executions per second
✓
Array.push
2,186,552 Ops/sec
Array[index]
1,932,176 Ops/sec
Array.slice
697,025 Ops/sec
Array spread
661,527 Ops/sec
Array.from
603,290 Ops/sec
Tests:
Array.from
const elements = document.all; const arr = Array.from(elements);
Array.slice
const elements = document.all; const arr = Array.prototype.slice.call(elements, 0);
Array.push
const elements = document.all; const amount = elements.length; const arr = []; for (let i = 0; i < amount; i += 1) arr.push(elements[i]);
Array[index]
const elements = document.all; const amount = elements.length; const arr = Array(amount); for (let i = 0; i < amount; i += 1) arr[i] = elements[i];
Array spread
const elements = document.all; const arr = [...elements];