event

event : Event

The most recent Event object (could be a TouchEvent, PointerEvent, MouseEvent, WheelEvent, or ScrollEvent based on whatever type you define)

Details

The most recent Event object (could be a TouchEvent, PointerEvent, MouseEvent, WheelEvent, or ScrollEvent based on whatever type you define). For example, if your Observer has type: "touch,pointer" and you press down and drag with your mouse, the event would be a PointerEvent or MouseEvent based on your browser/device. This allows you to get whatever information you need from that event like pageX, pageY, etc. For touch and pointer events, the event.clientX and event.clientY are automatically saved to the "x" and "y" properties of the Observer for convenience.