main.js (1663B)
1 /** 2 * @license Apache-2.0 3 * 4 * Copyright (c) 2018 The Stdlib Authors. 5 * 6 * Licensed under the Apache License, Version 2.0 (the "License"); 7 * you may not use this file except in compliance with the License. 8 * You may obtain a copy of the License at 9 * 10 * http://www.apache.org/licenses/LICENSE-2.0 11 * 12 * Unless required by applicable law or agreed to in writing, software 13 * distributed under the License is distributed on an "AS IS" BASIS, 14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 15 * See the License for the specific language governing permissions and 16 * limitations under the License. 17 */ 18 19 'use strict'; 20 21 // MODULES // 22 23 var hasOwnProp = require( './../../has-own-property' ); 24 var isEnumerableProperty = require( './../../is-enumerable-property' ); 25 26 27 // MAIN // 28 29 /** 30 * Tests if an object's own property is non-enumerable. 31 * 32 * @param {*} value - value to test 33 * @param {*} property - property to test 34 * @returns {boolean} boolean indicating if an object property is non-enumerable 35 * 36 * @example 37 * var defineProperty = require( '@stdlib/utils/define-property' ); 38 * 39 * var obj = { 40 * 'boop': true 41 * }; 42 * 43 * defineProperty( obj, 'beep', { 44 * 'configurable': false, 45 * 'enumerable': false, 46 * 'writable': true, 47 * 'value': 'beep' 48 * }); 49 * 50 * var bool = isNonEnumerableProperty( obj, 'boop' ); 51 * // returns false 52 * 53 * bool = isNonEnumerableProperty( obj, 'beep' ); 54 * // returns true 55 */ 56 function isNonEnumerableProperty( value, property ) { 57 if ( hasOwnProp( value, property ) === false ) { 58 return false; 59 } 60 return ( isEnumerableProperty( value, property ) === false ); 61 } 62 63 64 // EXPORTS // 65 66 module.exports = isNonEnumerableProperty;