In C#, you define an empty class, struct, or interface like this:
So how do you define an empty type in F#?
Well, whenever you define a new class in F#, the compiler infers the class and end tokens at the beginning and end of the class’s definition, as you can see from below:
So the easiest way to define an empty type is to specify the class and end tokens explicitly:
Running these few lines of code into the F# interactive outputs the following:
For class types, you also have other alternative techniques, such as: