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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=598369" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (iPhone; CPU iPhone OS 18_4 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/18.4 Mobile/15E148 Safari/604.1
Browser:
Mobile Safari 18
Operating system:
iOS 18.4
Device Platform:
Mobile
Date tested:
one year ago
Test name
Executions per second
new Array()
3547378.8 Ops/sec
Array.from()
1013986.3 Ops/sec
push
691289.8 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) }