Run results for: lodash partition vs forEach with array push vs two filter loops

Run details:

User agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:139.0) Gecko/20100101 Firefox/139.0

Browser: Firefox 139

Operating system: Ubuntu

Device Platform: Desktop

Date tested: one year ago

Lodash partition

15K/s

forEach

15K/s

double filter

8K/s

View exact numbers

HTML Preparation code:

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

Script Preparation code:

var tabl = Array.from({ length: 10000 }).map((value, i) => i)

Tests:

Lodash partition
let result = _.partition(tabl, v => v%2)
forEach
let a = [], b = []; let result = tabl.forEach(item => {if (item%2) {a.push(item)} else {b.push(item)}})
double filter
const a = tabl.filter(item => item%2); const b = tabl.filter(item => !item%2);