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Run results for:
Array.from() vs new Array() vs push
Testing the difference between creating filled arrays.
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<iframe src="https://measurethat.net/Embed?id=610031" 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/130.0.0.0 Safari/537.36
Browser:
Chrome 130
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
one year ago
new Array()
2.6M/s
push
1.0M/s
Array.from()
72K/s
View exact numbers
Test name
Executions per second
✓
new Array()
2,608,327 Ops/sec
push
1,024,216 Ops/sec
Array.from()
71,890 Ops/sec
Tests:
new Array()
new Array(500).fill(0, 0, 500)
Array.from()
Array.from({ length: 500 }, () => 0)
push
let array = []; for (let i = 0; i < 500; i++){ array.push(0) }