changedTouches property
      
      TouchList
      get
      changedTouches
      
    
    
The changedTouches read-only property is a TouchList whose touch
points (Touch objects) varies depending on the event type, as follows:
- For the Element.touchstart_eventevent, it is a list of the touch points that became active with the current event.
- For the Element.touchmove_eventevent, it is a list of the touch points that have changed since the last event.
- For the Element.touchend_eventevent, it is a list of the touch points that have been removed from the surface (that is, the set of touch points corresponding to fingers no longer touching the surface).
Implementation
external TouchList get changedTouches;