What's the best way to detect a 'touch screen' device using JavaScript?

Question

I\'ve written a jQuery plug-in that\'s for use on both desktop and mobile devices. I wondered if there is a way with JavaScript to detect if the device has touch screen capa

Answer 1

This seems to be working fine for me so far:

//Checks if a touch screen
is_touch_screen = 'ontouchstart' in document.documentElement;

if (is_touch_screen) {
  // Do something if a touch screen
}
else {
  // Not a touch screen (i.e. desktop)
}