# merge-deep
> Recursively merge values in a javascript object.
Latest version **3.0.3** (published 2021-01-11) · MIT license · 0 weekly downloads
## Install
```sh
npm install merge-deep
pnpm add merge-deep
yarn add merge-deep
bun add merge-deep
```
## Health
**Score 23/100 (F)** — status: abandoned.
Positive: has types package; no vulnerabilities; high quality score.
Warnings: low downloads; no esm support.
Negative: abandoned; low maintenance score.
## Facts
| | |
|---|---|
| Version | 3.0.3 |
| Published | 2021-01-11 |
| First published | 2014-10-03 |
| Weekly downloads | 0 |
| License | MIT |
| TypeScript types | separate (@types/merge-deep) |
| Module format | CommonJS |
| Node | >=0.10.0 |
| Dependencies | 3 |
| Unpacked size | 8.3 KB |
| Known vulnerabilities | 0 |
| Install scripts | no |
| GitHub stars | 109 |
| Author | Jon Schlinkert |
| Maintainers | jonschlinkert, doowb |
| Keywords | clone, clone-deep, copy, deep, deep-clone, deep-merge, extend, key, keys, merge, merge-deep, object, objects, prop, properties, property, props, value, values |
## Links
- npm: https://www.npmjs.com/package/merge-deep
- Repository: https://github.com/jonschlinkert/merge-deep
- Issues: https://github.com/jonschlinkert/merge-deep/issues
- npm.io page: https://npm.io/package/merge-deep
## Dependencies (3)
- [kind-of](https://npm.io/package/kind-of.md) ^3.0.2
- [arr-union](https://npm.io/package/arr-union.md) ^3.1.0
- [clone-deep](https://npm.io/package/clone-deep.md) ^0.2.4
## Recent versions
- 3.0.3 (latest) — 2021-01-11
- 3.0.2 — 2018-07-11
- 3.0.1 — 2018-02-07
- 3.0.0 — 2016-04-13
- 2.0.2 — 2015-12-23
- 2.0.1 — 2015-08-21
- 2.0.0 — 2015-06-29
- 1.0.3 — 2015-06-13
- 1.0.2 — 2015-05-28
- 1.0.1 — 2015-02-25
- 1.0.0 — 2015-02-25
- 0.1.5 — 2015-02-19
- 0.1.4 — 2015-02-19
- 0.1.3 — 2014-11-04
- 0.1.2 — 2014-10-08
- … 1 more at https://npm.io/package/merge-deep/versions
## README
# merge-deep [](https://www.npmjs.com/package/merge-deep) [](https://npmjs.org/package/merge-deep) [](https://npmjs.org/package/merge-deep) [](https://travis-ci.org/jonschlinkert/merge-deep)
> Recursively merge values in a javascript object.
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 merge-deep
```
Based on [mout's](https://github.com/mout/mout) implementation of merge
## Usage
```js
var merge = require('merge-deep');
merge({a: {b: {c: 'c', d: 'd'}}}, {a: {b: {e: 'e', f: 'f'}}});
//=> { a: { b: { c: 'c', d: 'd', e: 'e', f: 'f' } } }
```
## 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:
* [assign-deep](https://www.npmjs.com/package/assign-deep): Deeply assign the values of all enumerable-own-properties and symbols from one or more source objects… [more](https://github.com/jonschlinkert/assign-deep) | [homepage](https://github.com/jonschlinkert/assign-deep "Deeply assign the values of all enumerable-own-properties and symbols from one or more source objects to a target object. Returns the target object.")
* [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-deep](https://www.npmjs.com/package/mixin-deep): Deeply mix the properties of objects into the first object. Like merge-deep, but doesn't clone… [more](https://github.com/jonschlinkert/mixin-deep) | [homepage](https://github.com/jonschlinkert/mixin-deep "Deeply mix the properties of objects into the first object. Like merge-deep, but doesn't clone. No dependencies.")
* [omit-deep](https://www.npmjs.com/package/omit-deep): Recursively omit the specified key or keys from an object. | [homepage](https://github.com/jonschlinkert/omit-deep "Recursively omit the specified key or keys from an object.")
### Contributors
| **Commits** | **Contributor** |
| --- | --- |
| 32 | [jonschlinkert](https://github.com/jonschlinkert) |
| 8 | [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 © 2021, [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 January 11, 2021._
---
_Source: https://npm.io/package/merge-deep · Machine-readable twin of the npm.io package page. Health data is recomputed on every publish._