Introduction to F#

In Chapter 1, Getting Started, we discussed the F# language and its functional programming features, basic keywords, operators, and variable declarations. We also looked at the difference between F# and C#, functions, and the basic input-output syntax. In this section, we will discuss F# in more detail.

Basics of classes

Classes are types of object which can contain functions, properties, and events. An F# class must have a parameter and a function attached like a member. Both properties and functions can use the member keyword. The following is the class definition syntax:

type [access-modifier] type-name [type-params] [access-modifier] (parameter-list) [ as identifier ] =
[ class ]
[ inherit base-type-name(base-constructor-args) ]
[ let-bindings ]
[ do-bindings ]
member-list
 [ end ]

// Mutually recursive class definitions:

type [access-modifier] type-name1 ...
and [access-modifier] type-name2 ...

Let’s discuss the preceding syntax for class declaration:

• type: In the F...