Functional Reactive Programming

FRP, the central theme of the second half of the chapter, may be considered by definition as a programming paradigm. In fact, this paradigm is different from the more common ones, such as imperative, object-oriented and functional, because it applies only to Reactive Programming. The context of use is much smaller.

In the previous chapters, we understood how the library Rx represents all these data sequences as observable sequences and how it can be used to compose asynchronous and event-based programs.

Similarly, we will now introduce FRP exploiting objects and, in general, all the features of F# and functional programming. This is possible due to the inherent ability of the language to make almost every instruction in a function block.

In the following sections, we will see in detail the following points:

• What is FRP and how can you represent it?
• What are the main features and applicable scenarios?
• The concept of asynchronous data flow
• The types on push-based...