<!-- @license Apache-2.0 Copyright (c) 2018 The Stdlib Authors. Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. --> # Non-Enumerable Property > [Define][@stdlib/utils/define-property] a **non-enumerable** property. <section class="usage"> ## Usage ```javascript var setNonEnumerableProperty = require( '@stdlib/utils/define-nonenumerable-property' ); ``` #### setNonEnumerableProperty( obj, prop, value ) [Defines][@stdlib/utils/define-property] a **non-enumerable** property. ```javascript var obj = {}; setNonEnumerableProperty( obj, 'foo', 'bar' ); var v = obj.foo; // returns 'bar' ``` </section> <!-- /.usage --> <section class="notes"> ## Notes - Non-enumerable properties are **writable** and **configurable**. </section> <!-- /.notes --> <section class="examples"> ## Examples <!-- eslint no-undef: "error" --> ```javascript var objectKeys = require( '@stdlib/utils/keys' ); var setNonEnumerableProperty = require( '@stdlib/utils/define-nonenumerable-property' ); function Foo( name ) { if ( !(this instanceof Foo) ) { return new Foo( name ); } setNonEnumerableProperty( this, 'name', name ); return this; } var foo = new Foo( 'beep' ); var v = foo.name; // returns 'beep' var keys = objectKeys( foo ); // returns [] ``` </section> <!-- /.examples --> <section class="links"> [@stdlib/utils/define-property]: https://www.npmjs.com/package/@stdlib/utils/tree/main/define-property </section> <!-- /.links -->