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Run results for:
Test array reduce
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Run details:
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0.0.0 Safari/537.36
Browser:
Chrome 130
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
one year ago
Test name
Executions per second
reduce with new array
40.2 Ops/sec
reduce with array mutation
12284.9 Ops/sec
flatMap
6518.1 Ops/sec
Script Preparation code:
var arr = Array(10_000).fill(0)
Tests:
reduce with new array
arr.reduce((acc, x) => [...acc, x], [])
reduce with array mutation
arr.reduce((acc, x) => { acc.push(x); return acc; }, [])
flatMap
arr.flatMap(x => [x])