shallow-clone

Creates a shallow clone of any JavaScript value.

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Install

Install with npm:

1$ npm install --save shallow-clone

Usage

1const 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.

1const arr = [{ a: 0 }, { b: 1 }];
2const foo = clone(arr);
3// foo =>  [{ 'a': 0 }, { 'b': 1 }]
4
5// array is cloned
6assert(actual === expected); // false
7
8// array elements are not
9assert.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.

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

RegExp

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

1const regex = clone(/foo/g); //=> /foo/g
2// you can manually reset lastIndex if necessary
3regex.lastIndex = 0;

Primitives

Simply returns primitives unchanged.

1clone(0); //=> 0
2clone('foo'); //=> 'foo'

About

1$ npm install && npm test

1$ 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
• 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

Author

Jon Schlinkert

• GitHub Profile
• Twitter Profile
• LinkedIn Profile

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.