Q172: How do you detect a mobile browser without regexp - JavaScript Internals (521 Qs)

You can detect mobile browsers by simply running through a list of devices and checking if the useragent matches anything. This is an alternative solution for RegExp usage,

javascript

  function detectmob() {
    if (
      navigator.userAgent.match(/Android/i) ||
      navigator.userAgent.match(/webOS/i) ||
      navigator.userAgent.match(/iPhone/i) ||
      navigator.userAgent.match(/iPad/i) ||
      navigator.userAgent.match(/iPod/i) ||
      navigator.userAgent.match(/BlackBerry/i) ||
      navigator.userAgent.match(/Windows Phone/i)
    ) {
      return true;
    } else {
      return false;
    }
  }