1# arr-flatten [![NPM version](https://img.shields.io/npm/v/arr-flatten.svg?style=flat)](https://www.npmjs.com/package/arr-flatten) [![NPM monthly downloads](https://img.shields.io/npm/dm/arr-flatten.svg?style=flat)](https://npmjs.org/package/arr-flatten) [![NPM total downloads](https://img.shields.io/npm/dt/arr-flatten.svg?style=flat)](https://npmjs.org/package/arr-flatten) [![Linux Build Status](https://img.shields.io/travis/jonschlinkert/arr-flatten.svg?style=flat&label=Travis)](https://travis-ci.org/jonschlinkert/arr-flatten) [![Windows Build Status](https://img.shields.io/appveyor/ci/jonschlinkert/arr-flatten.svg?style=flat&label=AppVeyor)](https://ci.appveyor.com/project/jonschlinkert/arr-flatten)
2
3> Recursively flatten an array or arrays.
4
5## Install
6
7Install with [npm](https://www.npmjs.com/):
8
9```sh
10$ npm install --save arr-flatten
11```
12
13## Install
14
15Install with [bower](https://bower.io/)
16
17```sh
18$ bower install arr-flatten --save
19```
20
21## Usage
22
23```js
24var flatten = require('arr-flatten');
25
26flatten(['a', ['b', ['c']], 'd', ['e']]);
27//=> ['a', 'b', 'c', 'd', 'e']
28```
29
30## Why another flatten utility?
31
32I wanted the fastest implementation I could find, with implementation choices that should work for 95% of use cases, but no cruft to cover the other 5%.
33
34## About
35
36### Related projects
37
38* [arr-filter](https://www.npmjs.com/package/arr-filter): Faster alternative to javascript's native filter method. | [homepage](https://github.com/jonschlinkert/arr-filter "Faster alternative to javascript's native filter method.")
39* [arr-union](https://www.npmjs.com/package/arr-union): Combines a list of arrays, returning a single array with unique values, using strict equality… [more](https://github.com/jonschlinkert/arr-union) | [homepage](https://github.com/jonschlinkert/arr-union "Combines a list of arrays, returning a single array with unique values, using strict equality for comparisons.")
40* [array-each](https://www.npmjs.com/package/array-each): Loop over each item in an array and call the given function on every element. | [homepage](https://github.com/jonschlinkert/array-each "Loop over each item in an array and call the given function on every element.")
41* [array-unique](https://www.npmjs.com/package/array-unique): Remove duplicate values from an array. Fastest ES5 implementation. | [homepage](https://github.com/jonschlinkert/array-unique "Remove duplicate values from an array. Fastest ES5 implementation.")
42
43### Contributing
44
45Pull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).
46
47### Contributors
48
49| **Commits** | **Contributor** |
50| --- | --- |
51| 20 | [jonschlinkert](https://github.com/jonschlinkert) |
52| 1 | [lukeed](https://github.com/lukeed) |
53
54### Building docs
55
56_(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_
57
58To generate the readme, run the following command:
59
60```sh
61$ npm install -g verbose/verb#dev verb-generate-readme && verb
62```
63
64### Running tests
65
66Running and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:
67
68```sh
69$ npm install && npm test
70```
71
72### Author
73
74**Jon Schlinkert**
75
76* [github/jonschlinkert](https://github.com/jonschlinkert)
77* [twitter/jonschlinkert](https://twitter.com/jonschlinkert)
78
79### License
80
81Copyright © 2017, [Jon Schlinkert](https://github.com/jonschlinkert).
82Released under the [MIT License](LICENSE).
83
84***
85
86_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.6.0, on July 05, 2017._