I would like to try developing ASP.NET and ASP.NET MVC apps in F#. I enjoy using functional langauges, and to my mind the functional paradigm fits better with HTTP and the web than imperative programming (though of course F# can do both).
I am only intending on trying F# for some personal projects, though I hope that eventually F# will be seen as a valid alternative to C# for suitable commercial ASP.NET projects.
What pitfalls and rough edges are there currently for using F# with ASP.NET? One obvious disadvantage is that F# is much more obscure than C#, so there are less code samples and experienced programmers for F#.
What other potential issues should I be aware of?
Personally I am a big fan of F#. My NDjango parser/rendering engine is written in F#.
But trying to do everything in F# can be difficult. To add to your list of the things which are not there yet:
There is no support for visual
designers – neither webforms nor
winforms. You can write the
appropriate code manually, of course
No Code Completion
Debugging in F# can be a challenge, in particular because of anonymous closures
Compiler Diagnostics can be misleading because of type inference – one typo can have profound impact in far away places
My biggest pet peeve is the ‘file order matter’ rule. You have to specify the order in which the files will be compiled
By no means this is a complete list. On the other end one might hope that some of these points will be addressed in final release.
Despite of all of the listed (and unlisted) problems I enjoy programming in F# – sometimes it gives a very refreshing perspective on the coding and I already started using some of the tricks inspired by F# in my C# code.
Just do not go crazy in it