1 # arr-diff [![NPM version](https://img.shields.io/npm/v/arr-diff.svg)](https://www.npmjs.com/package/arr-diff) [![Build Status](https://img.shields.io/travis/jonschlinkert/base.svg)](https://travis-ci.org/jonschlinkert/base)
3 > Returns an array with only the unique values from the first array, by excluding all values from additional arrays using strict equality for comparisons.
7 Install with [npm](https://www.npmjs.com/)
10 $ npm i arr-diff --save
12 Install with [bower](http://bower.io/)
15 $ bower install arr-diff --save
20 ### [diff](index.js#L33)
22 Return the difference between the first array and additional arrays.
28 * `returns` **{Array}**
33 var diff = require('arr-diff');
35 var a = ['a', 'b', 'c', 'd'];
38 console.log(diff(a, b))
44 * [arr-flatten](https://www.npmjs.com/package/arr-flatten): Recursively flatten an array or arrays. This is the fastest implementation of array flatten. | [homepage](https://github.com/jonschlinkert/arr-flatten)
45 * [array-filter](https://www.npmjs.com/package/array-filter): Array#filter for older browsers. | [homepage](https://github.com/juliangruber/array-filter)
46 * [array-intersection](https://www.npmjs.com/package/array-intersection): Return an array with the unique values present in _all_ given arrays using strict equality… [more](https://www.npmjs.com/package/array-intersection) | [homepage](https://github.com/jonschlinkert/array-intersection)
50 Install dev dependencies:
53 $ npm i -d && npm test
58 Pull requests and stars are always welcome. For bugs and feature requests, [please create an issue](https://github.com/jonschlinkert/arr-diff/issues/new).
64 + [github/jonschlinkert](https://github.com/jonschlinkert)
65 + [twitter/jonschlinkert](http://twitter.com/jonschlinkert)
69 Copyright © 2015 [Jon Schlinkert](https://github.com/jonschlinkert)
70 Released under the MIT license.
74 _This file was generated by [verb](https://github.com/verbose/verb) on Sat Dec 05 2015 23:24:53 GMT-0500 (EST)._