static void Main()
{
var observable = new ObservableNumbers();
Action <int> action = n => Console.WriteLine(n);
observable.Subscribe(action);
observable.Unsubscribe(action);
}
public static void Main()
{
var observable = new ObservableNumbers();
//Action<int> action = n => Console.WriteLine(n);
observable.Subscribe(n => Console.WriteLine(n));
//observable.UnSubscribe(n => Console.WriteLine(n));
/*
* Subscribe to the number sequence => Provide a lambda
* Unsubscribe => Provide the same lambda
* => MEMORY LEAK because lambdas/delegates are immutable => 2 methods 2 different delegates
* => UnSubscribe method is non-sense.
* => Need to be mitigated by client code (Action, IDisposable,...)
*/
}
