Define a read-only accessor.
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> [Define][@stdlib/utils/define-property] a read-only accessor.
``bash`
npm install @stdlib/utils-define-read-only-accessor
`javascript`
var setReadOnlyAccessor = require( '@stdlib/utils-define-read-only-accessor' );
#### setReadOnlyAccessor( obj, prop, getter )
[Defines][@stdlib/utils/define-property] a read-only accessor.
`javascript
function getter() {
return 'bar';
}
var obj = {};
setReadOnlyAccessor( obj, 'foo', getter );
obj.foo = 'boop';
// throws
`
- Read-only accessors are enumerable and non-configurable.
`javascript
var setReadOnlyAccessor = require( '@stdlib/utils-define-read-only-accessor' );
function Foo( name ) {
if ( !(this instanceof Foo) ) {
return new Foo( name );
}
setReadOnlyAccessor( this, 'name', getName );
return this;
function getName() {
return name;
}
}
var foo = new Foo( 'beep' );
try {
foo.name = 'boop';
} catch ( err ) {
console.error( err.message );
}
`
*
- [@stdlib/utils-define-read-only-property][@stdlib/utils/define-read-only-property]: define a read-only property.
- [@stdlib/utils-define-read-write-accessor][@stdlib/utils/define-read-write-accessor]: define a read-write accessor.
- [@stdlib/utils-define-write-only-accessor][@stdlib/utils/define-write-only-accessor]: define a write-only accessor.
*
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].
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---
See [LICENSE][stdlib-license].
Copyright © 2016-2026. The Stdlib [Authors][stdlib-authors].
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[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-define-read-only-accessor/tree/deno
[deno-readme]: https://github.com/stdlib-js/utils-define-read-only-accessor/blob/deno/README.md
[umd-url]: https://github.com/stdlib-js/utils-define-read-only-accessor/tree/umd
[umd-readme]: https://github.com/stdlib-js/utils-define-read-only-accessor/blob/umd/README.md
[esm-url]: https://github.com/stdlib-js/utils-define-read-only-accessor/tree/esm
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[@stdlib/utils/define-property]: https://www.npmjs.com/package/@stdlib/utils-define-property
[@stdlib/utils/define-read-only-property]: https://www.npmjs.com/package/@stdlib/utils-define-read-only-property
[@stdlib/utils/define-read-write-accessor]: https://www.npmjs.com/package/@stdlib/utils-define-read-write-accessor
[@stdlib/utils/define-write-only-accessor]: https://www.npmjs.com/package/@stdlib/utils-define-write-only-accessor