lodash.multicombinations

_.multicombinations(collection, n)

Calculates all possible multicombinations of a certain size.

| argument | description | | ---: | :--- | | collection | A collection of distinct values to calculate the multicombinations from. | | n | The number of values to combine. |

Returns a new array.

setup

npm

npm i lodash.multicombinations

ES module

import 'lodash.multicombinations';
import _ from 'lodash';

Node

require('lodash.multicombinations');
let _ = require('lodash');

browser

<script src="https://unpkg.com/lodash"></script>
<script src="https://unpkg.com/lodash.multicombinations"></script>

usage

let multicombinations = _.multicombinations([0, 1], 3);
// => [[0, 0, 0], [0, 0, 1], [0, 1, 1], [1, 1, 1]]

Also accepts array-like values.

let multicombinations = _('abcde').multicombinations(2).map(v => _.join(v, '')).value();
// => ['aa', 'ab', 'ac', 'ad', 'ae', 'bb', 'bc', 'bd', 'be', 'cc', 'cd', 'ce', 'dd', 'de', 'ee']

see also

• lodash.combinations
• lodash.permutations
• lodash.multipermutations
• lodash.product