npm package: @stdlib/utils-define-read-write-accessor
Description: Define a read-write accessor.
Author: The Stdlib Authors
Latest version: 0.2.3

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# Read-Write Accessor

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

> [Define][@stdlib/utils/define-property] a **read-write** accessor.

<section class="installation">

## Installation

```bash
npm install @stdlib/utils-define-read-write-accessor
```

</section>

<section class="usage">

## Usage

```javascript
var setReadWriteAccessor = require( '@stdlib/utils-define-read-write-accessor' );
```

#### setReadWriteAccessor( obj, prop, getter, setter )

[Defines][@stdlib/utils/define-property] a **read-write** accessor.

```javascript
var word = 'bar';
var obj = {};

function getter() {
    return word + ' foo';
}

function setter( v ) {
    word = v;
}

setReadWriteAccessor( obj, 'foo', getter, setter );

var v = obj.foo;
// returns 'bar foo'

obj.foo = 'beep';

v = obj.foo;
// returns 'beep foo'
```

</section>

<!-- /.usage -->

<section class="notes">

## Notes

-   Read-write accessors are **enumerable** and **non-configurable**.

</section>

<!-- /.notes -->

<section class="examples">

## Examples

<!-- eslint no-undef: "error" -->

```javascript
var setReadWriteAccessor = require( '@stdlib/utils-define-read-write-accessor' );

function Foo( name ) {
    if ( !(this instanceof Foo) ) {
        return new Foo( name );
    }
    setReadWriteAccessor( this, 'name', getName, setName );
    return this;

    function getName() {
        return 'Hello, ' + name;
    }

    function setName( v ) {
        name = v;
    }
}

var foo = new Foo( 'Grace' );
console.log( foo.name );

foo.name = 'Ada';
console.log( foo.name );
```

</section>

<!-- /.examples -->

<!-- Section for related `stdlib` packages. Do not manually edit this section, as it is automatically populated. -->

<section class="related">

* * *

## See Also

-   <span class="package-name">[`@stdlib/utils-define-read-only-property`][@stdlib/utils/define-read-only-property]</span><span class="delimiter">: </span><span class="description">define a read-only property.</span>
-   <span class="package-name">[`@stdlib/utils-define-read-only-accessor`][@stdlib/utils/define-read-only-accessor]</span><span class="delimiter">: </span><span class="description">define a read-only accessor.</span>
-   <span class="package-name">[`@stdlib/utils-define-write-only-accessor`][@stdlib/utils/define-write-only-accessor]</span><span class="delimiter">: </span><span class="description">define a write-only accessor.</span>

</section>

<!-- /.related -->

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<section class="main-repo" >

* * *

## 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 &copy; 2016-2026. The Stdlib [Authors][stdlib-authors].

</section>

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[@stdlib/utils/define-property]: https://www.npmjs.com/package/@stdlib/utils-define-property

<!-- <related-links> -->

[@stdlib/utils/define-read-only-property]: https://www.npmjs.com/package/@stdlib/utils-define-read-only-property

[@stdlib/utils/define-read-only-accessor]: https://www.npmjs.com/package/@stdlib/utils-define-read-only-accessor

[@stdlib/utils/define-write-only-accessor]: https://www.npmjs.com/package/@stdlib/utils-define-write-only-accessor

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</section>

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