var t;

var te;

​

function supportString(value) {

  return value + ' ' + (value ? '(supported)' : '(not supported)');

}

document.getElementById("TouchLength").innerHTML = supportString(Touch.length);

document.getElementById("TouchEventLength").innerHTML = supportString(TouchEvent.length);

​

try {

  t = new Touch({

    identifier: 42,

    target: document.body,

    clientX: 200,

    clientY: 200,

    screenX: 300,

    screenY: 300,

    pageX: 250,

    pageY: 250,

    radiusX: 2.5,

    radiusY: 2.5,

    rotationAngle: 10,

    force: 0.5,

  });

  var res = document.getElementById("result1");

  for (var key in t) {

    res.innerText += key + " = " + t[key] + "\n";

  }

} catch(e) {

  document.getElementById("result1").innerText = e. message;

}

​

// -------

​

try {

  te = new TouchEvent("touchstart", {

      cancelable: true,

      bubbles: true,

      touches: [t],

      targetTouches: [],

      changedTouches: [t],

      shiftKey: true,

    });

  var res = document.getElementById("result2");

  for (var key in te) {

    ed = Object.getOwnPropertyDescriptor(Event.prototype,key);

    if (typeof te[key] != "function" &&

        !(ed && 'value' in ed))

      res.innerText += key + " = " + te[key] + "\n";

  }

} catch(e) {

  document.getElementById("result2").innerText = e. message;

}