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Run results for:
flatMap vs reduce spread vs reduce push
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=599195" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:137.0) Gecko/20100101 Firefox/137.0
Browser:
Firefox 137
Operating system:
Ubuntu
Device Platform:
Desktop
Date tested:
one year ago
flatMap
4K/s
reduce with push
4K/s
reduce with spread
2/s
View exact numbers
Test name
Executions per second
✓
flatMap
4,470 Ops/sec
reduce with push
4,153 Ops/sec
reduce with spread
2 Ops/sec
Script Preparation code:
var arr = Array(10_000).fill(0)
Tests:
reduce with spread
arr.reduce((acc, x) => [...acc, x, x], [])
flatMap
arr.flatMap(x => [x, x])
reduce with push
arr.reduce((acc, x) => (acc.push(x, x), acc), [])