index.js (1419B)
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 /** 22 * Return a string value indicating a specification defined classification of an object. 23 * 24 * @module @stdlib/utils/native-class 25 * 26 * @example 27 * var nativeClass = require( '@stdlib/utils/native-class' ); 28 * 29 * var str = nativeClass( 'a' ); 30 * // returns '[object String]' 31 * 32 * str = nativeClass( 5 ); 33 * // returns '[object Number]' 34 * 35 * function Beep() { 36 * return this; 37 * } 38 * str = nativeClass( new Beep() ); 39 * // returns '[object Object]' 40 */ 41 42 // MODULES // 43 44 var hasToStringTag = require( '@stdlib/assert/has-tostringtag-support' ); 45 var builtin = require( './native_class.js' ); 46 var polyfill = require( './polyfill.js' ); 47 48 49 // MAIN // 50 51 var nativeClass; 52 if ( hasToStringTag() ) { 53 nativeClass = polyfill; 54 } else { 55 nativeClass = builtin; 56 } 57 58 59 // EXPORTS // 60 61 module.exports = nativeClass;