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Run results for:
Reduce Push vs. flatMap vs 123
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<iframe src="https://measurethat.net/Embed?id=553130" 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/128.0.0.0 Safari/537.36
Browser:
Chrome 128
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
one year ago
Reduce Push
100K/s
flatMap
56K/s
mapFilter
40K/s
View exact numbers
Test name
Executions per second
✓
Reduce Push
99,999 Ops/sec
flatMap
56,006 Ops/sec
mapFilter
40,354 Ops/sec
Script Preparation code:
var arr = Array(10000).map((x, i) => i)
Tests:
Reduce Push
arr.reduce((acc, x) => { acc.push(x, x); return acc; }, [])
flatMap
arr.flatMap(x => [x, x])
mapFilter
arr.map(x => x).filter(x => !!x)