|
|
- # arr-union [![NPM version](https://img.shields.io/npm/v/arr-union.svg)](https://www.npmjs.com/package/arr-union) [![Build Status](https://img.shields.io/travis/jonschlinkert/arr-union.svg)](https://travis-ci.org/jonschlinkert/arr-union)
-
- > Combines a list of arrays, returning a single array with unique values, using strict equality for comparisons.
-
- ## Install
-
- Install with [npm](https://www.npmjs.com/):
-
- ```sh
- $ npm i arr-union --save
- ```
-
- ## Benchmarks
-
- This library is **10-20 times faster** and more performant than [array-union](https://github.com/sindresorhus/array-union).
-
- See the [benchmarks](./benchmark).
-
- ```sh
- #1: five-arrays
- array-union x 511,121 ops/sec ±0.80% (96 runs sampled)
- arr-union x 5,716,039 ops/sec ±0.86% (93 runs sampled)
-
- #2: ten-arrays
- array-union x 245,196 ops/sec ±0.69% (94 runs sampled)
- arr-union x 1,850,786 ops/sec ±0.84% (97 runs sampled)
-
- #3: two-arrays
- array-union x 563,869 ops/sec ±0.97% (94 runs sampled)
- arr-union x 9,602,852 ops/sec ±0.87% (92 runs sampled)
- ```
-
- ## Usage
-
- ```js
- var union = require('arr-union');
-
- union(['a'], ['b', 'c'], ['d', 'e', 'f']);
- //=> ['a', 'b', 'c', 'd', 'e', 'f']
- ```
-
- Returns only unique elements:
-
- ```js
- union(['a', 'a'], ['b', 'c']);
- //=> ['a', 'b', 'c']
- ```
-
- ## Related projects
-
- * [arr-diff](https://www.npmjs.com/package/arr-diff): Returns an array with only the unique values from the first array, by excluding all… [more](https://www.npmjs.com/package/arr-diff) | [homepage](https://github.com/jonschlinkert/arr-diff)
- * [arr-filter](https://www.npmjs.com/package/arr-filter): Faster alternative to javascript's native filter method. | [homepage](https://github.com/jonschlinkert/arr-filter)
- * [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)
- * [arr-map](https://www.npmjs.com/package/arr-map): Faster, node.js focused alternative to JavaScript's native array map. | [homepage](https://github.com/jonschlinkert/arr-map)
- * [arr-pluck](https://www.npmjs.com/package/arr-pluck): Retrieves the value of a specified property from all elements in the collection. | [homepage](https://github.com/jonschlinkert/arr-pluck)
- * [arr-reduce](https://www.npmjs.com/package/arr-reduce): Fast array reduce that also loops over sparse elements. | [homepage](https://github.com/jonschlinkert/arr-reduce)
- * [array-unique](https://www.npmjs.com/package/array-unique): Return an array free of duplicate values. Fastest ES5 implementation. | [homepage](https://github.com/jonschlinkert/array-unique)
-
- ## Contributing
-
- Pull requests and stars are always welcome. For bugs and feature requests, [please create an issue](https://github.com/jonschlinkert/arr-union/issues/new).
-
- ## Building docs
-
- Generate readme and API documentation with [verb](https://github.com/verbose/verb):
-
- ```sh
- $ npm i verb && npm run docs
- ```
-
- Or, if [verb](https://github.com/verbose/verb) is installed globally:
-
- ```sh
- $ verb
- ```
-
- ## Running tests
-
- Install dev dependencies:
-
- ```sh
- $ npm i -d && npm test
- ```
-
- ## Author
-
- **Jon Schlinkert**
-
- * [github/jonschlinkert](https://github.com/jonschlinkert)
- * [twitter/jonschlinkert](http://twitter.com/jonschlinkert)
-
- ## License
-
- Copyright © 2016 [Jon Schlinkert](https://github.com/jonschlinkert)
- Released under the [MIT license](https://github.com/jonschlinkert/arr-union/blob/master/LICENSE).
-
- ***
-
- _This file was generated by [verb](https://github.com/verbose/verb), v0.9.0, on February 23, 2016._
|