150 lines
6.3 KiB
Markdown
150 lines
6.3 KiB
Markdown
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# set-value [](https://www.npmjs.com/package/set-value) [](https://npmjs.org/package/set-value) [](https://npmjs.org/package/set-value) [](https://travis-ci.org/jonschlinkert/set-value)
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> Create nested values and any intermediaries using dot notation (`'a.b.c'`) paths.
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## Install
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Install with [npm](https://www.npmjs.com/):
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```sh
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$ npm install --save set-value
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```
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## Usage
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```js
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var set = require('set-value');
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set(object, prop, value);
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```
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### Params
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* `object` **{object}**: The object to set `value` on
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* `prop` **{string}**: The property to set. Dot-notation may be used.
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* `value` **{any}**: The value to set on `object[prop]`
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## Examples
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Updates and returns the given object:
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```js
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var obj = {};
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set(obj, 'a.b.c', 'd');
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console.log(obj);
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//=> { a: { b: { c: 'd' } } }
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```
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### Escaping
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**Escaping with backslashes**
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Prevent set-value from splitting on a dot by prefixing it with backslashes:
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```js
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console.log(set({}, 'a\\.b.c', 'd'));
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//=> { 'a.b': { c: 'd' } }
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console.log(set({}, 'a\\.b\\.c', 'd'));
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//=> { 'a.b.c': 'd' }
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```
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**Escaping with double-quotes or single-quotes**
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Wrap double or single quotes around the string, or part of the string, that should not be split by set-value:
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```js
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console.log(set({}, '"a.b".c', 'd'));
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//=> { 'a.b': { c: 'd' } }
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console.log(set({}, "'a.b'.c", "d"));
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//=> { 'a.b': { c: 'd' } }
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console.log(set({}, '"this/is/a/.file.path"', 'd'));
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//=> { 'this/is/a/file.path': 'd' }
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```
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### Bracket support
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set-value does not split inside brackets or braces:
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```js
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console.log(set({}, '[a.b].c', 'd'));
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//=> { '[a.b]': { c: 'd' } }
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console.log(set({}, "(a.b).c", "d"));
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//=> { '(a.b)': { c: 'd' } }
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console.log(set({}, "<a.b>.c", "d"));
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//=> { '<a.b>': { c: 'd' } }
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console.log(set({}, "{a..b}.c", "d"));
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//=> { '{a..b}': { c: 'd' } }
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```
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## History
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### v2.0.0
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* Adds support for escaping with double or single quotes. See [escaping](#escaping) for examples.
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* Will no longer split inside brackets or braces. See [bracket support](#bracket-support) for examples.
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If there are any regressions please create a [bug report](../../issues/new). Thanks!
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## About
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### Related projects
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* [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.")
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* [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.")
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* [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.")
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* [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.")
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* [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.")
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* [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.")
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* [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.")
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* [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.")
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### Contributing
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Pull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).
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### Contributors
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| **Commits** | **Contributor** |
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| --- | --- |
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| 59 | [jonschlinkert](https://github.com/jonschlinkert) |
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| 1 | [vadimdemedes](https://github.com/vadimdemedes) |
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| 1 | [wtgtybhertgeghgtwtg](https://github.com/wtgtybhertgeghgtwtg) |
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### Building docs
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_(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.)_
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To generate the readme, run the following command:
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```sh
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$ npm install -g verbose/verb#dev verb-generate-readme && verb
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```
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### Running tests
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Running 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:
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```sh
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$ npm install && npm test
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```
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### Author
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**Jon Schlinkert**
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* [github/jonschlinkert](https://github.com/jonschlinkert)
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* [twitter/jonschlinkert](https://twitter.com/jonschlinkert)
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### License
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Copyright © 2017, [Jon Schlinkert](https://github.com/jonschlinkert).
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Released under the [MIT License](LICENSE).
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***
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_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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