How to determine if the client is a touch device [duplicate]

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You can use the following JS function:

function isTouchDevice() {
   var el = document.createElement('div');
   el.setAttribute('ongesturestart', 'return;'); // or try "ontouchstart"
   return typeof el.ongesturestart === "function";
}

Source: Detecting touch-based browsing.

Please note the above code only tests if the browser has support for touch, not the device.

Related links:

There may be detection in jquery for mobile and jtouch

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