Benchmark: forEach vs map, 100k take 2!

HTML Preparation code:


<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.min.js'></script>

Tests:

forEach
const arr = _.range(0,100000) arr.forEach(x => arr[x] = x * 2) console.log(arr)
map
const arr = _.range(0,100000) const newArr = arr.map(x => x * 2) console.log(newArr)
map take 2
const newArr = _.range(0,100000).map(x => x * 2); console.log(newArr)
vanilla
const arr = _.range(0,100000); const length = arr.length; for (let i = 0; i < length; i++) { arr[i] = arr[i] * 2 } console.log(arr);

Rendered benchmark preparation results:

Previous results

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Latest run results:

Run details: (Test run date: 4 years ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.87 Safari/537.36

Browser/OS: Chrome 80 on Mac OS X 10.15.3

forEach vs map, 100k take 2! (version: 0)