@stdlib/utils-define-nonenumerable-read-only-accessor

Define a non-enumerable read-only accessor.

Usage no npm install needed!

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  import stdlibUtilsDefineNonenumerableReadOnlyAccessor from 'https://cdn.skypack.dev/@stdlib/utils-define-nonenumerable-read-only-accessor';
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README

Non-Enumerable Read-Only Accessor

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Define a non-enumerable read-only accessor.

Installation

npm install @stdlib/utils-define-nonenumerable-read-only-accessor

Usage

var setNonEnumerableReadOnlyAccessor = require( '@stdlib/utils-define-nonenumerable-read-only-accessor' );

setNonEnumerableReadOnlyAccessor( obj, prop, getter )

Defines a non-enumerable read-only accessor.

function getter() {
    return 'bar';
}

var obj = {};

setNonEnumerableReadOnlyAccessor( obj, 'foo', getter );

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

Notes

  • Non-enumerable read-only accessors are non-configurable.

Examples

var setNonEnumerableReadOnlyAccessor = require( '@stdlib/utils-define-nonenumerable-read-only-accessor' );

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

    function getName() {
        return name;
    }
}

var foo = new Foo( 'beep' );

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

See Also

Notice

This package is part of 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, see the main project repository.

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Copyright © 2016-2022. The Stdlib Authors.