Run results for: flatMap vs reduce v1.1

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:109.0) Gecko/20100101 Firefox/112.0

Browser: Firefox 112

Operating system: Mac OS X 10.15

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
reduce	174.3 Ops/sec
flatMap	72.9 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)