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1# union-value [![NPM version](https://img.shields.io/npm/v/union-value.svg?style=flat)](https://www.npmjs.com/package/union-value) [![NPM monthly downloads](https://img.shields.io/npm/dm/union-value.svg?style=flat)](https://npmjs.org/package/union-value) [![NPM total downloads](https://img.shields.io/npm/dt/union-value.svg?style=flat)](https://npmjs.org/package/union-value) [![Linux Build Status](https://img.shields.io/travis/jonschlinkert/union-value.svg?style=flat&label=Travis)](https://travis-ci.org/jonschlinkert/union-value)
2
3> Set an array of unique values as the property of an object. Supports setting deeply nested properties using using object-paths/dot notation.
4
5## Install
6
7Install with [npm](https://www.npmjs.com/):
8
9```sh
10$ npm install --save union-value
11```
12
13## Usage
14
15```js
16var union = require('union-value');
17
18var obj = {};
19
20union(obj, 'a.b.c', ['one', 'two']);
21union(obj, 'a.b.c', ['three']);
22
23console.log(obj);
24//=> {a: {b: {c: [ 'one', 'two', 'three' ] }}}
25```
26
27## About
28
29### Related projects
30
31* [assign-value](https://www.npmjs.com/package/assign-value): Assign a value or extend a deeply nested property of an object using object path… [more](https://github.com/jonschlinkert/assign-value) | [homepage](https://github.com/jonschlinkert/assign-value "Assign a value or extend a deeply nested property of an object using object path notation.")
32* [get-value](https://www.npmjs.com/package/get-value): Use property paths (`a.b.c`) to get a nested value from an object. | [homepage](https://github.com/jonschlinkert/get-value "Use property paths (`a.b.c`) to get a nested value from an object.")
33* [has-value](https://www.npmjs.com/package/has-value): Returns true if a value exists, false if empty. Works with deeply nested values using… [more](https://github.com/jonschlinkert/has-value) | [homepage](https://github.com/jonschlinkert/has-value "Returns true if a value exists, false if empty. Works with deeply nested values using object paths.")
34* [set-value](https://www.npmjs.com/package/set-value): Create nested values and any intermediaries using dot notation (`'a.b.c'`) paths. | [homepage](https://github.com/jonschlinkert/set-value "Create nested values and any intermediaries using dot notation (`'a.b.c'`) paths.")
35* [unset-value](https://www.npmjs.com/package/unset-value): Delete nested properties from an object using dot notation. | [homepage](https://github.com/jonschlinkert/unset-value "Delete nested properties from an object using dot notation.")
36
37### Contributing
38
39Pull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).
40
41### Building docs
42
43_(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.)_
44
45To generate the readme, run the following command:
46
47```sh
48$ npm install -g verbose/verb#dev verb-generate-readme && verb
49```
50
51### Running tests
52
53Running 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:
54
55```sh
56$ npm install && npm test
57```
58
59### Author
60
61**Jon Schlinkert**
62
63* [github/jonschlinkert](https://github.com/jonschlinkert)
64* [twitter/jonschlinkert](https://twitter.com/jonschlinkert)
65
66### License
67
68Copyright © 2017, [Jon Schlinkert](https://github.com/jonschlinkert).
69Released under the [MIT License](LICENSE).
70
71***
72
73_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.4.2, on February 25, 2017._
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