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Run results for:
new Array() vs Array.from() with random data
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<iframe src="https://measurethat.net/Embed?id=629278" 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/148.0.0.0 Safari/537.36
Browser:
Chrome 148
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
2 months ago
new Array(1000)
123K/s
Array.from({length: 1000})
36K/s
View exact numbers
Test name
Executions per second
✓
new Array(1000)
122,809 Ops/sec
Array.from({length: 1000})
35,637 Ops/sec
Tests:
new Array(1000)
new Array(1000).fill(0).map(() => Math.random())
Array.from({length: 1000})
Array.from({length: 1000}, () => Math.random())