# array-union [](https://travis-ci.org/sindresorhus/array-union) > Create an array of unique values, in order, from the input arrays ## Install ``` $ npm install --save array-union ``` ## Usage ```js const arrayUnion = require('array-union'); arrayUnion([1, 1, 2, 3], [2, 3]); //=> [1, 2, 3] arrayUnion(['foo', 'foo', 'bar'], ['foo']); //=> ['foo', 'bar'] ``` ## License MIT © [Sindre Sorhus](https://sindresorhus.com)