--- title: Detect device type tags: browser,regexp cover: clutter-2 firstSeen: 2017-12-24T09:39:23+02:00 lastUpdated: 2020-10-22T20:23:47+03:00 --- Detects whether the page is being viewed on a mobile device or a desktop. - Use a regular expression to test the `Navigator.userAgent` property to figure out if the device is a mobile device or a desktop. ```js const detectDeviceType = () => /Android|webOS|iPhone|iPad|iPod|BlackBerry|IEMobile|Opera Mini/i.test( navigator.userAgent ) ? 'Mobile' : 'Desktop'; ``` ```js detectDeviceType(); // 'Mobile' or 'Desktop' ```