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1# set-value [![NPM version](https://img.shields.io/npm/v/set-value.svg?style=flat)](https://www.npmjs.com/package/set-value) [![NPM monthly downloads](https://img.shields.io/npm/dm/set-value.svg?style=flat)](https://npmjs.org/package/set-value) [![NPM total downloads](https://img.shields.io/npm/dt/set-value.svg?style=flat)](https://npmjs.org/package/set-value) [![Linux Build Status](https://img.shields.io/travis/jonschlinkert/set-value.svg?style=flat&label=Travis)](https://travis-ci.org/jonschlinkert/set-value)
2
3> Create nested values and any intermediaries using dot notation (`'a.b.c'`) paths.
4
5## Install
6
7Install with [npm](https://www.npmjs.com/):
8
9```sh
10$ npm install --save set-value
11```
12
13## Usage
14
15```js
16var set = require('set-value');
17set(object, prop, value);
18```
19
20### Params
21
22* `object` **{object}**: The object to set `value` on
23* `prop` **{string}**: The property to set. Dot-notation may be used.
24* `value` **{any}**: The value to set on `object[prop]`
25
26## Examples
27
28Updates and returns the given object:
29
30```js
31var obj = {};
32set(obj, 'a.b.c', 'd');
33console.log(obj);
34//=> { a: { b: { c: 'd' } } }
35```
36
37### Escaping
38
39**Escaping with backslashes**
40
41Prevent set-value from splitting on a dot by prefixing it with backslashes:
42
43```js
44console.log(set({}, 'a\\.b.c', 'd'));
45//=> { 'a.b': { c: 'd' } }
46
47console.log(set({}, 'a\\.b\\.c', 'd'));
48//=> { 'a.b.c': 'd' }
49```
50
51**Escaping with double-quotes or single-quotes**
52
53Wrap double or single quotes around the string, or part of the string, that should not be split by set-value:
54
55```js
56console.log(set({}, '"a.b".c', 'd'));
57//=> { 'a.b': { c: 'd' } }
58
59console.log(set({}, "'a.b'.c", "d"));
60//=> { 'a.b': { c: 'd' } }
61
62console.log(set({}, '"this/is/a/.file.path"', 'd'));
63//=> { 'this/is/a/file.path': 'd' }
64```
65
66### Bracket support
67
68set-value does not split inside brackets or braces:
69
70```js
71console.log(set({}, '[a.b].c', 'd'));
72//=> { '[a.b]': { c: 'd' } }
73
74console.log(set({}, "(a.b).c", "d"));
75//=> { '(a.b)': { c: 'd' } }
76
77console.log(set({}, "<a.b>.c", "d"));
78//=> { '<a.b>': { c: 'd' } }
79
80console.log(set({}, "{a..b}.c", "d"));
81//=> { '{a..b}': { c: 'd' } }
82```
83
84## History
85
86### v2.0.0
87
88* Adds support for escaping with double or single quotes. See [escaping](#escaping) for examples.
89* Will no longer split inside brackets or braces. See [bracket support](#bracket-support) for examples.
90
91If there are any regressions please create a [bug report](../../issues/new). Thanks!
92
93## About
94
95### Related projects
96
97* [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.")
98* [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.")
99* [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.")
100* [merge-value](https://www.npmjs.com/package/merge-value): Similar to assign-value but deeply merges object values or nested values using object path/dot notation. | [homepage](https://github.com/jonschlinkert/merge-value "Similar to assign-value but deeply merges object values or nested values using object path/dot notation.")
101* [omit-value](https://www.npmjs.com/package/omit-value): Omit properties from an object or deeply nested property of an object using object path… [more](https://github.com/jonschlinkert/omit-value) | [homepage](https://github.com/jonschlinkert/omit-value "Omit properties from an object or deeply nested property of an object using object path notation.")
102* [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.")
103* [union-value](https://www.npmjs.com/package/union-value): Set an array of unique values as the property of an object. Supports setting deeply… [more](https://github.com/jonschlinkert/union-value) | [homepage](https://github.com/jonschlinkert/union-value "Set an array of unique values as the property of an object. Supports setting deeply nested properties using using object-paths/dot notation.")
104* [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.")
105
106### Contributing
107
108Pull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).
109
110### Contributors
111
112| **Commits** | **Contributor** |
113| --- | --- |
114| 59 | [jonschlinkert](https://github.com/jonschlinkert) |
115| 1 | [vadimdemedes](https://github.com/vadimdemedes) |
116| 1 | [wtgtybhertgeghgtwtg](https://github.com/wtgtybhertgeghgtwtg) |
117
118### Building docs
119
120_(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.)_
121
122To generate the readme, run the following command:
123
124```sh
125$ npm install -g verbose/verb#dev verb-generate-readme && verb
126```
127
128### Running tests
129
130Running 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:
131
132```sh
133$ npm install && npm test
134```
135
136### Author
137
138**Jon Schlinkert**
139
140* [github/jonschlinkert](https://github.com/jonschlinkert)
141* [twitter/jonschlinkert](https://twitter.com/jonschlinkert)
142
143### License
144
145Copyright © 2017, [Jon Schlinkert](https://github.com/jonschlinkert).
146Released under the [MIT License](LICENSE).
147
148***
149
150_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.6.0, on June 21, 2017._
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