In the previous sections, we first discussed functional programming. Then, we introduced F# and its main features. Finally, we described how to use the most important constructs in the F# language. The meaning of all this is to be able to deal with the main topic: FRP.
An important element is missing in order to introduce FRP. This is required because without it, you cannot fully understand reactive programming.
F#, like any other language of the .NET Framework, supports asynchronous programming. It is crucial to perform portions of code in a separate thread.
The syntax for applying asynchronous code is really simple. The following is the syntax:
async { <expression> }
The code inserted in place of <expression> will be withdrawn in various ways through the use of specific types and their methods of asynchronous invocation. For example, the async class provides several methods that allow you to run this code on different threads.
A very important concept...