builtin_wrapper.js (1297B)
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 isArguments = require( '@stdlib/assert/is-arguments' ); 24 var builtin = require( './builtin.js' ); 25 26 27 // VARIABLES // 28 29 var slice = Array.prototype.slice; 30 31 32 // MAIN // 33 34 /** 35 * Returns an array of an object's own enumerable property names. 36 * 37 * @private 38 * @param {*} value - input object 39 * @returns {Array} a list of own enumerable property names 40 * 41 * @example 42 * var obj = { 43 * 'beep': 'boop', 44 * 'foo': 3.14 45 * }; 46 * 47 * var k = keys( obj ); 48 * // e.g., returns [ 'beep', 'foo' ] 49 */ 50 function keys( value ) { 51 if ( isArguments( value ) ) { 52 return builtin( slice.call( value ) ); 53 } 54 return builtin( value ); 55 } 56 57 58 // EXPORTS // 59 60 module.exports = keys;