# deep-extend

> Recursive object extending

Latest version **0.6.0** (published 2018-05-22) · MIT license · 0 weekly downloads

## Install

```sh
npm install deep-extend
pnpm add deep-extend
yarn add deep-extend
bun add deep-extend
```

## Health

**Score 23/100 (F)** — status: abandoned.

Positive: has types package; no vulnerabilities; high quality score.

Warnings: low downloads; no esm support; pre 1.0.

Negative: abandoned; low maintenance score.

## Facts

| | |
|---|---|
| Version | 0.6.0 |
| Published | 2018-05-22 |
| First published | 2012-03-29 |
| Weekly downloads | 0 |
| License | MIT |
| TypeScript types | separate (@types/deep-extend) |
| Module format | CommonJS |
| Node | >=4.0.0 |
| Dependencies | 0 |
| Unpacked size | 9 KB |
| Known vulnerabilities | 0 |
| Install scripts | no |
| GitHub stars | 201 |
| Author | Viacheslav Lotsmanov |
| Maintainers | unclechu |
| Keywords | deep-extend, extend, deep, recursive, xtend, clone, merge, json |

## Links

- npm: https://www.npmjs.com/package/deep-extend
- Repository: https://github.com/unclechu/node-deep-extend
- Issues: https://github.com/unclechu/node-deep-extend/issues
- npm.io page: https://npm.io/package/deep-extend

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## Recent versions

- 0.6.0 (latest) — 2018-05-22
- 0.5.1 — 2018-04-28
- 0.5.0 — 2017-05-11
- 0.4.2 — 2017-05-11
- 0.4.1 — 2016-01-16
- 0.4.0 — 2015-05-01
- 0.3.3 — 2015-03-28
- 0.3.2 — 2014-10-03
- 0.3.1 — 2014-10-03
- 0.3.0 — 2014-10-03
- 0.2.11 — 2014-07-28
- 0.2.10 — 2014-05-27
- 0.2.9 — 2014-05-27
- 0.2.8 — 2014-02-01
- 0.2.7 — 2014-02-01
- … 6 more at https://npm.io/package/deep-extend/versions

## README

Deep Extend
===========

Recursive object extending.

[![Build Status](https://api.travis-ci.org/unclechu/node-deep-extend.svg?branch=master)](https://travis-ci.org/unclechu/node-deep-extend)

[![NPM](https://nodei.co/npm/deep-extend.png?downloads=true&downloadRank=true&stars=true)](https://nodei.co/npm/deep-extend/)

Install
-------

```bash
$ npm install deep-extend
```

Usage
-----

```javascript
var deepExtend = require('deep-extend');
var obj1 = {
  a: 1,
  b: 2,
  d: {
    a: 1,
    b: [],
    c: { test1: 123, test2: 321 }
  },
  f: 5,
  g: 123,
  i: 321,
  j: [1, 2]
};
var obj2 = {
  b: 3,
  c: 5,
  d: {
    b: { first: 'one', second: 'two' },
    c: { test2: 222 }
  },
  e: { one: 1, two: 2 },
  f: [],
  g: (void 0),
  h: /abc/g,
  i: null,
  j: [3, 4]
};

deepExtend(obj1, obj2);

console.log(obj1);
/*
{ a: 1,
  b: 3,
  d:
   { a: 1,
     b: { first: 'one', second: 'two' },
     c: { test1: 123, test2: 222 } },
  f: [],
  g: undefined,
  c: 5,
  e: { one: 1, two: 2 },
  h: /abc/g,
  i: null,
  j: [3, 4] }
*/
```

Unit testing
------------

```bash
$ npm test
```

Changelog
---------

[CHANGELOG.md](./CHANGELOG.md)

Any issues?
-----------

Please, report about issues
[here](https://github.com/unclechu/node-deep-extend/issues).

License
-------

[MIT](./LICENSE)

---
_Source: https://npm.io/package/deep-extend · Machine-readable twin of the npm.io package page. Health data is recomputed on every publish._