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C# Querying With LINQ Functional Programming in C# Delegates

Posted by Mariia Ashurova
Mariia Ashurova
10,913 Points

Help pls

Create another public static method named Square that matches the signature of the MathOperation delegate. Inside the method, return the result of number * number.

Program.cs 
using System;

namespace Treehouse.CodeChallenges
{
    public class Program
    {
        public Func<int, int> Square = delegate (int number)
        {
            return number * number;

        };

        public Action<int, Func<int, int>> DisplayResult = delegate (int result, Func<int, int> operation)
        {
            Console.WriteLine(operation(result));
        };
    }
}

1 Answer

Simon Sporrong
Simon Sporrong
35,097 Points
Simon Sporrong
Simon Sporrong
35,097 Points

You just have to declare a function that matches the delegate and not a generic delegate with the keyword Func. You should just write a public static function as you normally do and return the same thing as you have written.

public static int Square(int number)
{
     return number * number
}