97 lines
3.7 KiB
Markdown
97 lines
3.7 KiB
Markdown
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# clone-deep [](https://www.npmjs.com/package/clone-deep) [](https://npmjs.org/package/clone-deep) [](https://npmjs.org/package/clone-deep) [](https://travis-ci.org/jonschlinkert/clone-deep)
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> Recursively (deep) clone JavaScript native types, like Object, Array, RegExp, Date as well as primitives.
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Please consider following this project's author, [Jon Schlinkert](https://github.com/jonschlinkert), and consider starring the project to show your :heart: and support.
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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 clone-deep
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```
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## Usage
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```js
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var cloneDeep = require('clone-deep');
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var obj = {a: 'b'};
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var arr = [obj];
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var copy = cloneDeep(arr);
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obj.c = 'd';
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console.log(copy);
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//=> [{a: 'b'}]
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console.log(arr);
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//=> [{a: 'b', c: 'd'}]
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```
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## Heads up!
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The `instanceClone` function is invoked to clone objects that are not "plain" objects (as defined by [isPlainObject](#isPlainObject)`isPlainObject`) if it is provided. If `instanceClone` is not specified, it will not attempt to clone non-plain objects, and will copy the object reference.
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## Attribution
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Based on [mout's](https://github.com/mout/mout) implementation of deepClone.
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## About
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<details>
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<summary><strong>Contributing</strong></summary>
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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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</details>
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<details>
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<summary><strong>Running Tests</strong></summary>
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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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</details>
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<details>
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<summary><strong>Building docs</strong></summary>
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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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</details>
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### Related projects
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You might also be interested in these projects:
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* [is-plain-object](https://www.npmjs.com/package/is-plain-object): Returns true if an object was created by the `Object` constructor. | [homepage](https://github.com/jonschlinkert/is-plain-object "Returns true if an object was created by the `Object` constructor.")
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* [isobject](https://www.npmjs.com/package/isobject): Returns true if the value is an object and not an array or null. | [homepage](https://github.com/jonschlinkert/isobject "Returns true if the value is an object and not an array or null.")
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* [kind-of](https://www.npmjs.com/package/kind-of): Get the native type of a value. | [homepage](https://github.com/jonschlinkert/kind-of "Get the native type of a value.")
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* [shallow-clone](https://www.npmjs.com/package/shallow-clone): Make a shallow clone of an object, array or primitive. | [homepage](https://github.com/jonschlinkert/shallow-clone "Make a shallow clone of an object, array or primitive.")
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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 November 16, 2017._
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