browser.js (1409B)
1 /** 2 * @license Apache-2.0 3 * 4 * Copyright (c) 2021 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 IS_BROWSER = require( './../../is-browser' ); 24 var getGlobal = require( '@stdlib/utils/global' ); 25 26 27 // VARIABLES // 28 29 var Global = getGlobal(); 30 31 32 // MAIN // 33 34 /** 35 * Returns a boolean indicating if an environment is a mobile environment. 36 * 37 * ## Notes 38 * 39 * - The implementation checks whether the User Agent contains the string "Mobi" per the [MDN recommendations][1]. 40 * 41 * [1]: https://developer.mozilla.org/en-US/docs/Web/HTTP/Browser_detection_using_the_user_agent 42 * 43 * @private 44 * @returns {boolean} boolean indicating if an environment is a mobile environment 45 */ 46 function isMobile() { 47 return ( 48 IS_BROWSER && 49 Global.navigator && 50 Global.navigator.userAgent && 51 /Mobi/.test( Global.navigator.userAgent ) 52 ); 53 } 54 55 56 // EXPORTS // 57 58 module.exports = isMobile;