CODE EXAMPLE FOR CSHARP

c# how to return a function

public void DoSomething()                          // Action
public void DoSomething(int number)                // Action<int>
public void DoSomething(int number, string text)   // Action<int, string>

public int DoSomething()                           // Func<int>
public int DoSomething(float number)               // Func<float, int>
public int DoSomething(float number, string text)  // Func<float, string, int>