You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
106 lines
4.2 KiB
106 lines
4.2 KiB
2 months ago
|
# 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)
|
||
|
|
|
||
|
|
> Recursively (deep) clone JavaScript native types, like Object, Array, RegExp, Date as well as primitives.
|
||
|
|
|
||
|
|
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 clone-deep
|
||
|
|
```
|
||
|
|
|
||
|
|
## Usage
|
||
|
|
|
||
|
|
```js
|
||
|
|
const cloneDeep = require('clone-deep');
|
||
|
|
|
||
|
|
let obj = { a: 'b' };
|
||
|
|
let arr = [obj];
|
||
|
|
let copy = cloneDeep(arr);
|
||
|
|
obj.c = 'd';
|
||
|
|
|
||
|
|
console.log(copy);
|
||
|
|
//=> [{ a: 'b' }]
|
||
|
|
|
||
|
|
console.log(arr);
|
||
|
|
//=> [{ a: 'b', c: 'd' }]
|
||
|
|
```
|
||
|
|
|
||
|
|
## Heads up!
|
||
|
|
|
||
|
|
The last argument specifies whether or not to clone instances (objects that are from a custom class or are not created by the `Object` constructor. This value may be `true` or the function use for cloning instances.
|
||
|
|
|
||
|
|
When an `instanceClone` function is provided, it will be invoked to clone objects that are not "plain" objects (as defined by [isPlainObject](#isPlainObject)`isPlainObject`). If `instanceClone` is not specified, this library will not attempt to clone non-plain objects, and will simply copy the object reference.
|
||
|
|
|
||
|
|
## Attribution
|
||
|
|
|
||
|
|
Initially based on [mout's](https://github.com/mout/mout) implementation of deepClone.
|
||
|
|
|
||
|
|
## About
|
||
|
|
|
||
|
|
<details>
|
||
|
|
<summary><strong>Contributing</strong></summary>
|
||
|
|
|
||
|
|
Pull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new).
|
||
|
|
|
||
|
|
</details>
|
||
|
|
|
||
|
|
<details>
|
||
|
|
<summary><strong>Running Tests</strong></summary>
|
||
|
|
|
||
|
|
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
|
||
|
|
```
|
||
|
|
|
||
|
|
</details>
|
||
|
|
|
||
|
|
<details>
|
||
|
|
<summary><strong>Building docs</strong></summary>
|
||
|
|
|
||
|
|
_(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
|
||
|
|
```
|
||
|
|
|
||
|
|
</details>
|
||
|
|
|
||
|
|
### Related projects
|
||
|
|
|
||
|
|
You might also be interested in these projects:
|
||
|
|
|
||
|
|
* [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.")
|
||
|
|
* [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.")
|
||
|
|
* [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.")
|
||
|
|
* [shallow-clone](https://www.npmjs.com/package/shallow-clone): Creates a shallow clone of any JavaScript value. | [homepage](https://github.com/jonschlinkert/shallow-clone "Creates a shallow clone of any JavaScript value.")
|
||
|
|
|
||
|
|
### Contributors
|
||
|
|
|
||
|
|
| **Commits** | **Contributor** |
|
||
|
|
| --- | --- |
|
||
|
|
| 46 | [jonschlinkert](https://github.com/jonschlinkert) |
|
||
|
|
| 2 | [yujunlong2000](https://github.com/yujunlong2000) |
|
||
|
|
|
||
|
|
### Author
|
||
|
|
|
||
|
|
**Jon Schlinkert**
|
||
|
|
|
||
|
|
* [GitHub Profile](https://github.com/jonschlinkert)
|
||
|
|
* [Twitter Profile](https://twitter.com/jonschlinkert)
|
||
|
|
* [LinkedIn Profile](https://linkedin.com/in/jonschlinkert)
|
||
|
|
|
||
|
|
### License
|
||
|
|
|
||
|
|
Copyright © 2018, [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 November 21, 2018._
|