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https://github.com/stdlib-js/utils-move-property

Move a property from one object to another object.
https://github.com/stdlib-js/utils-move-property

copy cp javascript move mv node node-js nodejs obj object prop property stdlib transfer util utilities utility utils

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Move a property from one object to another object.

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README

        


About stdlib...

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# Move Property

[![NPM version][npm-image]][npm-url] [![Build Status][test-image]][test-url] [![Coverage Status][coverage-image]][coverage-url]

> Move a property from one object to another object.

## Installation

```bash
npm install @stdlib/utils-move-property
```

Alternatively,

- To load the package in a website via a `script` tag without installation and bundlers, use the [ES Module][es-module] available on the [`esm`][esm-url] branch (see [README][esm-readme]).
- If you are using Deno, visit the [`deno`][deno-url] branch (see [README][deno-readme] for usage intructions).
- For use in Observable, or in browser/node environments, use the [Universal Module Definition (UMD)][umd] build available on the [`umd`][umd-url] branch (see [README][umd-readme]).

The [branches.md][branches-url] file summarizes the available branches and displays a diagram illustrating their relationships.

To view installation and usage instructions specific to each branch build, be sure to explicitly navigate to the respective README files on each branch, as linked to above.

## Usage

```javascript
var moveProperty = require( '@stdlib/utils-move-property' );
```

#### moveProperty( source, prop, target )

Moves a property from one `object` to another `object`.

```javascript
var obj1 = {
'a': 'b'
};
var obj2 = {};

var bool = moveProperty( obj1, 'a', obj2 );
// returns true
```

If the operation is successful, the function returns `true`; otherwise, `false`.

```javascript
var obj1 = {
'a': 'b'
};
var obj2 = {};

var bool = moveProperty( obj1, 'c', obj2 );
// returns false
```

## Notes

- A transfer is **shallow**.

```javascript
var arr = [ 1, 2, 3 ];

var obj1 = {
'a': arr
};
var obj2 = {};

var bool = moveProperty( obj1, 'a', obj2 );
console.log( obj2.a === arr );
// => true
```

- The property is **deleted** from the _source_ `object`.

- The property's descriptor **is** preserved during transfer.

- If a _source_ property is **not** `configurable`, the function throws an `Error`, as the property **cannot** be deleted from the _source_ `object`.

## Examples

```javascript
var moveProperty = require( '@stdlib/utils-move-property' );

var obj1 = {
'beep': 'boop'
};

var obj2 = {
'foo': 'bar'
};

var bool = moveProperty( obj1, 'beep', obj2 );
if ( bool === false ) {
console.log( 'failed to move property' );
}
console.dir( obj1 );
/* =>
{}
*/
console.dir( obj2 );
/* =>
{
'foo': 'bar',
'beep': 'boop'
}
*/
```

* * *

## Notice

This package is part of [stdlib][stdlib], a standard library for JavaScript and Node.js, with an emphasis on numerical and scientific computing. The library provides a collection of robust, high performance libraries for mathematics, statistics, streams, utilities, and more.

For more information on the project, filing bug reports and feature requests, and guidance on how to develop [stdlib][stdlib], see the main project [repository][stdlib].

#### Community

[![Chat][chat-image]][chat-url]

---

## License

See [LICENSE][stdlib-license].

## Copyright

Copyright © 2016-2024. The Stdlib [Authors][stdlib-authors].

[npm-image]: http://img.shields.io/npm/v/@stdlib/utils-move-property.svg
[npm-url]: https://npmjs.org/package/@stdlib/utils-move-property

[test-image]: https://github.com/stdlib-js/utils-move-property/actions/workflows/test.yml/badge.svg?branch=main
[test-url]: https://github.com/stdlib-js/utils-move-property/actions/workflows/test.yml?query=branch:main

[coverage-image]: https://img.shields.io/codecov/c/github/stdlib-js/utils-move-property/main.svg
[coverage-url]: https://codecov.io/github/stdlib-js/utils-move-property?branch=main

[chat-image]: https://img.shields.io/gitter/room/stdlib-js/stdlib.svg
[chat-url]: https://app.gitter.im/#/room/#stdlib-js_stdlib:gitter.im

[stdlib]: https://github.com/stdlib-js/stdlib

[stdlib-authors]: https://github.com/stdlib-js/stdlib/graphs/contributors

[umd]: https://github.com/umdjs/umd
[es-module]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Modules

[deno-url]: https://github.com/stdlib-js/utils-move-property/tree/deno
[deno-readme]: https://github.com/stdlib-js/utils-move-property/blob/deno/README.md
[umd-url]: https://github.com/stdlib-js/utils-move-property/tree/umd
[umd-readme]: https://github.com/stdlib-js/utils-move-property/blob/umd/README.md
[esm-url]: https://github.com/stdlib-js/utils-move-property/tree/esm
[esm-readme]: https://github.com/stdlib-js/utils-move-property/blob/esm/README.md
[branches-url]: https://github.com/stdlib-js/utils-move-property/blob/main/branches.md

[stdlib-license]: https://raw.githubusercontent.com/stdlib-js/utils-move-property/main/LICENSE