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Run results for:
Benchmark: flatMap vs reduce vs while vs foreach
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Run details:
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/18.5 Safari/605.1.15
Browser:
Safari 18
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
10 months ago
Test name
Executions per second
flatMap
79689.2 Ops/sec
reduce
702.3 Ops/sec
while
376561.3 Ops/sec
foreach
78338.1 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))