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https://github.com/jonschlinkert/mixin-deep

Deeply mix the properties of objects into the first object, while also mixing-in child objects.
https://github.com/jonschlinkert/mixin-deep

assign deep extend javascript jonschlinkert merge mixin nodejs recursive utility

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Deeply mix the properties of objects into the first object, while also mixing-in child objects.

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README 

        
# mixin-deep [![Donate](https://img.shields.io/badge/Donate-PayPal-green.svg)](https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=W8YFZ425KND68) [![NPM version](https://img.shields.io/npm/v/mixin-deep.svg?style=flat)](https://www.npmjs.com/package/mixin-deep) [![NPM monthly downloads](https://img.shields.io/npm/dm/mixin-deep.svg?style=flat)](https://npmjs.org/package/mixin-deep) [![NPM total downloads](https://img.shields.io/npm/dt/mixin-deep.svg?style=flat)](https://npmjs.org/package/mixin-deep) [![Linux Build Status](https://img.shields.io/travis/jonschlinkert/mixin-deep.svg?style=flat&label=Travis)](https://travis-ci.org/jonschlinkert/mixin-deep)



> Deeply mix the properties of objects into the first object. Like merge-deep, but doesn't clone. No dependencies.



Please consider following this project's author, [Jon Schlinkert](https://github.com/jonschlinkert), and consider starring the project to show your :heart: and support.



## Install



Install with [npm](https://www.npmjs.com/):



```sh

$ npm install --save mixin-deep

```



## Heads up!



[Please update](https://gist.github.com/jonschlinkert/9a62534c4f8bc76aee6058caa3f05fd6) to version 2.0.1 or later, a critical bug was fixed in that version.



## Usage



```js

const mixin = require('mixin-deep');

const res = mixin({ a: { foo: true } }, { a: { bar: true } }, { a: { baz: true } });

console.log(res);

//=> { a: { foo: true, bar: true, baz: true } }

```



## About



Contributing



Pull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).



Running Tests



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:



```sh

$ npm install && npm test

```



Building docs



_(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.)_



To generate the readme, run the following command:



```sh

$ npm install -g verbose/verb#dev verb-generate-readme && verb

```



### Related projects



You might also be interested in these projects:



* [defaults-deep](https://www.npmjs.com/package/defaults-deep): Like `extend` but recursively copies only the missing properties/values to the target object. | [homepage](https://github.com/jonschlinkert/defaults-deep "Like `extend` but recursively copies only the missing properties/values to the target object.")

* [extend-shallow](https://www.npmjs.com/package/extend-shallow): Extend an object with the properties of additional objects. node.js/javascript util. | [homepage](https://github.com/jonschlinkert/extend-shallow "Extend an object with the properties of additional objects. node.js/javascript util.")

* [merge-deep](https://www.npmjs.com/package/merge-deep): Recursively merge values in a javascript object. | [homepage](https://github.com/jonschlinkert/merge-deep "Recursively merge values in a javascript object.")

* [mixin-object](https://www.npmjs.com/package/mixin-object): Mixin the own and inherited properties of other objects onto the first object. Pass an… [more](https://github.com/jonschlinkert/mixin-object) | [homepage](https://github.com/jonschlinkert/mixin-object "Mixin the own and inherited properties of other objects onto the first object. Pass an empty object as the first arg to shallow clone.")



### Contributors



| **Commits** | **Contributor** |  

| --- | --- |  

| 28 | [jonschlinkert](https://github.com/jonschlinkert) |  

| 2  | [doowb](https://github.com/doowb) |  



### Author



**Jon Schlinkert**



* [GitHub Profile](https://github.com/jonschlinkert)

* [Twitter Profile](https://twitter.com/jonschlinkert)

* [LinkedIn Profile](https://linkedin.com/in/jonschlinkert)



### License



Copyright © 2019, [Jon Schlinkert](https://github.com/jonschlinkert).

Released under the [MIT License](LICENSE).



***



_This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.8.0, on June 19, 2019._