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README.md

shallow-clone Donate NPM version NPM monthly downloads NPM total downloads Linux Build Status

Creates a shallow clone of any JavaScript value.

Please consider following this project's author, Jon Schlinkert, and consider starring the project to show your :heart: and support.

Install

Install with npm:

$ npm install --save shallow-clone

Usage

const clone = require('shallow-clone');

Supports

  • array buffers
  • arrays
  • buffers
  • dates
  • errors
  • float32 arrays
  • float64 arrays
  • int16 arrays
  • int32 arrays
  • int8 arrays
  • maps
  • objects
  • primitives
  • regular expressions
  • sets
  • symbols
  • uint16 arrays
  • uint32 arrays
  • uint8 arrays
  • uint8clamped arrays

Arrays

By default, only the array itself is cloned (shallow), use clone-deep if you also need the elements in the array to be cloned.

const arr = [{ a: 0 }, { b: 1 }];
const foo = clone(arr);
// foo =>  [{ 'a': 0 }, { 'b': 1 }]

// array is cloned
assert(actual === expected); // false

// array elements are not
assert.deepEqual(actual[0], expected[0]); // true

Objects

Only the object is shallow cloned, use clone-deep if you also need the values in the object to be cloned.

console.log(clone({ a: 1, b: 2, c: 3 }));
//=> {a: 1, b: 2, c: 3 }

RegExp

Clones regular expressions and flags, and preserves the .lastIndex.

const regex = clone(/foo/g); //=> /foo/g
// you can manually reset lastIndex if necessary
regex.lastIndex = 0;

Primitives

Simply returns primitives unchanged.

clone(0); //=> 0
clone('foo'); //=> 'foo'

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: Deeply assign the values of all enumerable-own-properties and symbols from one or more source objects… more | homepage
  • clone-deep: Recursively (deep) clone JavaScript native types, like Object, Array, RegExp, Date as well as primitives. | homepage clone JavaScript native types, like Object, Array, RegExp, Date as well as primitives.")
  • is-plain-object: Returns true if an object was created by the Object constructor. | homepage
  • kind-of: Get the native type of a value. | homepage

Contributors

| Commits | Contributor |
| --- | --- |
| 20 | jonschlinkert |
| 2 | doowb |
| 1 | jakub-g |

Author

Jon Schlinkert

License

Copyright © 2019, Jon Schlinkert. Released under the MIT License.


This file was generated by verb-generate-readme, v0.8.0, on April 15, 2019.