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Run results for:
array fill vs spread
Array fill method vs for loop performance validation
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<iframe src="https://measurethat.net/Embed?id=588636" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:135.0) Gecko/20100101 Firefox/135.0
Browser:
Firefox 135
Operating system:
Ubuntu
Device Platform:
Desktop
Date tested:
one year ago
Array Fill
2/s
For Loop fill
2/s
View exact numbers
Test name
Executions per second
✓
Array Fill
2 Ops/sec
For Loop fill
2 Ops/sec
Tests:
For Loop fill
let arrayTest = [...new Array(10000000)].map(() => null);
Array Fill
let arrayTest = new Array(10000000).fill('').map(() => null);