Run results for: flatMap vs reduce v1.1

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/138.0.0.0 Safari/537.36

Browser: Chrome 138

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

Benchmark engine: Benchmark.js

reduce

551/s

flatMap

163/s

View exact numbers

Test name	Executions per second
✓ reduce	551 Ops/sec
flatMap	163 Ops/sec

Script Preparation code:

var arrayOfArray = Array(1_000).fill(Array(1_000).fill(0))

Tests:

reduce
[...arrayOfArray].reduce((acc, arr) => { acc.push(...arr); return acc; }, [])
flatMap
arrayOfArray.flatMap(arr => arr)