arr-union

> Combines a list of arrays, returning a single array with unique values, using strict equality for comparisons.

# Install

Install with npm:

$ npm i arr-union --save

# Benchmarks

This library is 10-20 times faster and more performant than array-union.

See the benchmarks.

#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

var union = require('arr-union');
union(['a'], ['b', 'c'], ['d', 'e', 'f']);
//=> ['a', 'b', 'c', 'd', 'e', 'f']

Returns only unique elements:

union(['a', 'a'], ['b', 'c']);
//=> ['a', 'b', 'c']

# Related projects

- arr-diff: Returns an array with only the unique values from the first array, by excluding all… more | homepage
- arr-filter: Faster alternative to javascript's native filter method. | homepage
- arr-flatten: Recursively flatten an array or arrays. This is the fastest implementation of array flatten. | homepage
- arr-map: Faster, node.js focused alternative to JavaScript's native array map. | homepage
- arr-pluck: Retrieves the value of a specified property from all elements in the collection. | homepage
- arr-reduce: Fast array reduce that also loops over sparse elements. | homepage
- array-unique: Return an array free of duplicate values. Fastest ES5 implementation. | homepage

# Contributing

Pull requests and stars are always welcome. For bugs and feature requests, please create an issue.

# Building docs

Generate readme and API documentation with verb:

$ npm i verb && npm run docs

Or, if verb is installed globally:

$ verb

# Running tests

Install dev dependencies:

$ npm i -d && npm test

# Author

Jon Schlinkert

- github/jonschlinkert
- twitter/jonschlinkert

# License

Copyright © 2016 Jon Schlinkert Released under the MIT license.

This file was generated by verb, v0.9.0, on February 23, 2016.