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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=507758" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:122.0) Gecko/20100101 Firefox/122.0
Browser:
Firefox 122
Operating system:
Mac OS X 10.15
Device Platform:
Desktop
Date tested:
2 years ago
Array(length).fill()
10.8M/s
Array.from({ length: length })
9.2M/s
View exact numbers
Test name
Executions per second
✓
Array(length).fill()
10,758,809 Ops/sec
Array.from({ length: length })
9,208,184 Ops/sec
Script Preparation code:
const length = 50;
Tests:
Array(length).fill()
Array(length).fill();
Array.from({ length: length })
Array.from({ length: length });