Run results for: Chunk - lodash vs javascript vs for loop vs reduce

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36

Browser: Chrome 131

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

native old

7K/s

native new

7K/s

lodash

2K/s

native for loop

2K/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 values = new Array(200 * 200 * 4)

Tests:

lodash
var chunks = _.chunk(values, 4)
native new
const chunk = (input, size) => { return input.reduce((arr, item, idx) => { if (idx % size === 0) { arr.push([item]); } else { arr[arr.length - 1].push(item); } return arr; }, []); } var chunks = chunk(values, 4)
native old
const chunk = (input, size) => { return input.reduce((arr, item, idx) => { return idx % size === 0 ? [...arr, [item]] : [...arr.slice(0, -1), [...arr.slice(-1)[0], item]]; }, []); } var chunks = chunk(values, 4)
native for loop
const chunk = (input, size) => { const arr = []; for (let i = 0; i < input.length; i += size) { arr.push(input.slice(i, i + size)); } return arr; }; var chunks = chunk(values, 4)