Example

Our previous code looks like this.

using System;

namespace FunctionalProgramming
{
    class Program
    {      
        static void Main(string[] args)
        {
            Action<string> sayGreeting;

            Func<string, string> conversate = delegate (string message)
            {
                Console.WriteLine(message);
                return Console.ReadLine();
            };

            string input = conversate("What's your name?");

            sayGreeting = delegate (string greeting)
            {
                Console.WriteLine(string.Format(greeting, input);
            };

            sayGreeting("Hello, {0}");
            sayGreeting("Bye, {0}");
        }
    }
}

Which part of code that could be lambdify?

Func<string, string> conversate = delegate (string message)
{
    Console.WriteLine(message);
    return Console.ReadLine();
};

// after lambdify
Func<string, string> conversate = (message) =>
{
    Console.WriteLine(message);
    return Console.ReadLine();
};

and

sayGreeting = delegate (string greeting)
{
    Console.WriteLine(string.Format(greeting, input);
};

// after lambdify
sayGreeting = (greeting) =>
{
    Console.WriteLine(message);
    return Console.ReadLine();
};