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Run results for:
Array(length).fill() vs Array.from({ length: length })
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<iframe src="https://measurethat.net/Embed?id=507780" 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/121.0.0.0 Safari/537.36
Browser:
Chrome 121
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
2 years ago
Array(length).fill()
5.3M/s
Array.from({ length: length })
4.0M/s
View exact numbers
Test name
Executions per second
✓
Array(length).fill()
5,251,948 Ops/sec
Array.from({ length: length })
3,973,577 Ops/sec
Script Preparation code:
const length = 50;
Tests:
Array(length).fill()
Array(length).fill();
Array.from({ length: length })
Array.from({ length: length });