Benchmark: flatMap() vs filter().map() vs map().filter()

Script Preparation code:

var arr = [];
var i = 0;

while (i <= 1E5) arr[i] = i++;

Tests:

filter().map()
arr.filter(x => x % 3).map(x => x/100)
flatMap()
arr.flatMap(x => x % 3 ? x/100 : [])
map().filter(Boolean)
arr.map(x => x % 3 ? x/100 : false).filter(Boolean)
map().filter(=>)
arr.map(x => x % 3 ? x/100 : false).filter(x => undefined !== x)

Rendered benchmark preparation results:

Previous results

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Latest run results:

Run details: (Test run date: one year ago)

User agent: Mozilla/5.0 (Linux; Android 13) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/113.0.0.0 Mobile Safari/537.36

Browser/OS: Chrome Mobile 113 on Android

flatMap() vs filter().map() vs map().filter() (version: 0)