Sadek Drobi introduces the Play Framework for developers interested in doing web programming in a functional language.
Method Chaining vs Function Composition
I know that F# has predefined function composition operators '>>' and '<<' and you can also use the pipeline '|>' operator to composed partially applied functions but I did not see the use of any such operators in the examples given.
Also I believe not all '.' chaining is method chaining. For example, LINQ's use of the '.' is actually function composition.