Provides an extremely lightweight mechanism for simply publishing and observing events and values, without the overhead of a full reactive programming library. It does not provide any functions for filtering or transforming the events or values.
This class is intended for values held in one object that need to be copied into another.
It holds a value that can be set and read at any time with the value property.
You can add listener callbacks with the sendTo method.
Listeners receive the current value as soon as they subscribe.
It is a little like a Subject in Rx.
This class is intended for events that need to be sent when they occur to another object to act on.
You can send events with the send method
You can add listener callbacks with the sendTo method.
Listeners do not receive any value when they subscribe - only when the next event is sent.
There is also a convenience method sendFlatTo that expands arrays or collection objects passed to send
and sends each element to the listeners separately.
There is no value property but a latestEvent property is provided for debugging and testing.
It is a little like an ordinary Observable in Rx.
Utility functions:
bindFunctions: binds all the public functions in an object (names not starting with _) tothisso that they can easily be used as listeners for the observable classes