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

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<details>
  <summary>
    About stdlib...
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</details>

# Configurable Read-Only 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 configurable **read-only** accessor.

<section class="installation">

## Installation

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

</section>

<section class="usage">

## Usage

<!-- eslint-disable id-length -->

```javascript
var setConfigurableReadOnlyAccessor = require( '@stdlib/utils-define-configurable-read-only-accessor' );
```

#### setConfigurableReadOnlyAccessor( obj, prop, getter )

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

<!-- run throws: true -->

<!-- eslint-disable id-length -->

```javascript
function getter() {
    return 'bar';
}

var obj = {};

setConfigurableReadOnlyAccessor( obj, 'foo', getter );

obj.foo = 'boop';
// throws <Error>
```

</section>

<!-- /.usage -->

<section class="notes">

## Notes

-   Configurable read-only accessors are **enumerable**.

</section>

<!-- /.notes -->

<section class="examples">

## Examples

<!-- eslint-disable id-length -->

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

```javascript
var setConfigurableReadOnlyAccessor = require( '@stdlib/utils-define-configurable-read-only-accessor' );

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

    function getName() {
        return name;
    }
}

var foo = new Foo( 'beep' );

try {
    foo.name = 'boop';
} catch ( err ) {
    console.error( err.message );
}
```

</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-configurable-read-only-property`][@stdlib/utils/define-configurable-read-only-property]</span><span class="delimiter">: </span><span class="description">define a configurable read-only property.</span>
-   <span class="package-name">[`@stdlib/utils-define-configurable-read-write-accessor`][@stdlib/utils/define-configurable-read-write-accessor]</span><span class="delimiter">: </span><span class="description">define a configurable read-write accessor.</span>
-   <span class="package-name">[`@stdlib/utils-define-configurable-write-only-accessor`][@stdlib/utils/define-configurable-write-only-accessor]</span><span class="delimiter">: </span><span class="description">define a configurable write-only accessor.</span>
-   <span class="package-name">[`@stdlib/utils-define-property`][@stdlib/utils/define-property]</span><span class="delimiter">: </span><span class="description">define (or modify) an object 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>

</section>

<!-- /.related -->

<!-- Section for all links. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->


<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]

---

## Copyright

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

</section>

<!-- /.stdlib -->

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

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[branches-url]: https://github.com/stdlib-js/utils-define-configurable-read-only-accessor/blob/main/branches.md

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

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

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

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

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

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

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</section>

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