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Run results for:
Benchmark: flatMap vs reduce vs while vs foreach
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=623897" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:147.0) Gecko/20100101 Firefox/147.0
Browser:
Firefox 147
Operating system:
Windows
Device Platform:
Desktop
Date tested:
6 months ago
foreach
506K/s
while
22K/s
flatMap
17K/s
reduce
76/s
View exact numbers
Test name
Executions per second
✓
foreach
506,152 Ops/sec
while
21,904 Ops/sec
flatMap
16,527 Ops/sec
reduce
76 Ops/sec
Script Preparation code:
var n = 1000
Tests:
flatMap
[...Array(n)].flatMap((x,i) => [++i,i++])
reduce
[...Array(n).keys()].reduce((acc, cur) => [...acc, ++cur, cur++], [])
while
let res = [], i=0; while(n>i++) res.push(i, i);
foreach
let res = []; Array(n).forEach((_,i) => res.push(i+1, i+1))