array-unique

array-unique

Remove duplicate values from an array. Fastest ES5 implementation.

Install

Install with npm:

$ npm install --save array-unique

Usage

var unique = require('array-unique');

var arr = ['a', 'b', 'c', 'c'];
console.log(unique(arr)) //=> ['a', 'b', 'c']
console.log(arr)         //=> ['a', 'b', 'c']

/* The above modifies the input array. To prevent that at a slight performance cost: */
var unique = require("array-unique").immutable;

var arr = ['a', 'b', 'c', 'c'];
console.log(unique(arr)) //=> ['a', 'b', 'c']
console.log(arr)         //=> ['a', 'b', 'c', 'c']

About

Related projects

• arr-diff: Returns an array with only the unique values from the first array, by excluding all… more | 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
• arr-union: Combines a list of arrays, returning a single array with unique values, using strict equality… more | homepage

Contributing

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

Building docs

(This document was generated by verb-generate-readme (a verb generator), please don't edit the readme directly. Any changes to the readme must be made in .verb.md.)

To generate the readme and API documentation with verb:

$ npm install -g verb verb-generate-readme && verb

Running tests

Install dev dependencies:

$ npm install -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-generate-readme, v0.1.28, on July 31, 2016.

Similar packages

Other packages similar to array-unique

lodash.uniq

Lodash is a popular utility library that includes a `uniq` function. This function is similar to array-unique in that it removes duplicate values from an array. Lodash offers a wide range of additional utility functions, which makes it a more comprehensive solution than array-unique, but also larger in size.

underscore

Underscore.js is another utility library that provides a `uniq` function, similar to array-unique. It is comparable to Lodash in functionality and size, and it also offers a wide range of utility functions beyond array deduplication.

ramda

Ramda is a functional programming library that includes a `uniq` function. It is designed with a focus on functional programming patterns and immutability. Ramda's `uniq` function provides similar functionality to array-unique, but within the context of a larger functional programming toolkit.