touch anywhere on screen to jump

From the script reference this is how to detect touches.

 function Update () {
   var fingerCount = 0;
   for (var touch : Touch in Input.touches) {
   if (touch.phase != TouchPhase.Ended && touch.phase != TouchPhase.Canceled)
     fingerCount++;
   }
   if (fingerCount > 0)
     print ("User has " + fingerCount + " finger(s) touching the screen");
 }

this code do not work?

 void Update()
 {
   if (Input.GetMouseButtonDown(0))
   {
      //Touch anywhere
   }
 }