Important: This documentation covers Yarn 1 (Classic).
For Yarn 2+ docs and migration guide, see yarnpkg.com.

Package detail

array-union

sindresorhus213.6mMIT3.0.1TypeScript support: included

Create an array of unique values, in order, from the input arrays

array, set, uniq, unique, duplicate, remove, union, combine, merge

readme

array-union

Create an array of unique values, in order, from the input arrays

Install

$ npm install array-union

Usage

import arrayUnion from 'array-union';

arrayUnion([1, 1, 2, 3], [2, 3]);
//=> [1, 2, 3]

arrayUnion(['foo', 'foo', 'bar']);
//=> ['foo', 'bar']

arrayUnion(['🐱', '🦄', '🐻'], ['🦄', '🌈']);
//=> ['🐱', '🦄', '🐻', '🌈']

arrayUnion(['🐱', '🦄'], ['🐻', '🦄'], ['🐶', '🌈', '🌈']);
//=> ['🐱', '🦄', '🐻', '🐶', '🌈']

Get professional support for this package with a Tidelift subscription
Tidelift helps make open source sustainable for maintainers while giving companies
assurances about security, maintenance, and licensing for their dependencies.