internal void Configure(delConfigureAlexa d)
{
Alexa a = new Alexa();
//invoke the delegate, after invoking the delegate it assigns the class variable
//with new values inside delegate,string interpolation variable is replaced with
//the desired value
d.Invoke(a);
//newly assigned values of class variable is then set to class variable
//so that updated values can be accessed inside the Talk()
GreetingMessage = a.GreetingMessage;
OwnerName = a.OwnerName;
}
private static void Main(string[] args)
{
var alexa = new Alexa();
Console.WriteLine(alexa.Talk()); //print hello, i am Alexa
alexa.Configure(x =>
{
x.GreetingMessage = "Hello {OwnerName}, I'm at your service";
x.OwnerName = "Bob Marley";
});
Console.WriteLine(alexa.Talk()); //print Hello Bob Marley, I'm at your service
Console.WriteLine("press any key to exit ...");
Console.ReadKey();
}