add

function

Signals that an object's property is being observed, so that any functions that are recording observations will see that this object is a dependency.

`Observation.add(obj, event)`

Signals that an event should be observed. Adds the observable being read to the top of the stack.

Observation.add(obj, "prop1");

obj {Object}:
An observable object which is being observed.
event {String}:
The name of the event (or property) that is being observed.