Utility

BJNObservable is a generic type that generates a callback when its value is changed. It can be used to listen in on changes to a specific value, but not to update the value itself. BJNObservable is read-only, for write capabilities, see BJNMutableObservable

Monitor any change to the value as:

clientMuteState.onChange {
    print("the client is now \(clientMuteState.value ? "muted" : "unmuted")")
}

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BJNMutableObservable is a BJNObservable that allows its value to be changed.

To modify a BJNMutableObservable‘s value,

mutableObservableVar.value = true

As a subclass of BJNObservable, you can still listen in on value changes.

mutableObservableVar.onChange {
    print("value changed to ", mutableObservableVar.value)
}

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