The F# community has been steadily working on extensions to the F# core libraries. These extensions provide helpful features that are "missing," add common parts found in other functional languages, and help with compatibility in other .NET languages.

1. F# Extensions
http://github.com/fsharp/fsharpx
http://nuget.org/packages/fsharpx.core
Next: Outline 2/26/2012 1

2. Outline
• What’s in
• What’s coming
• What’s next
Next: FSharpx.Async 2/26/2012 2

3. FSharpx.Core
• Courtesy of Steffen Forkmann, Mauricio Scheffer,
and Ryan Riley
• Prelude
• C# Compatibility
• Collections
• Lenses
• Monads
• Regex
• Time Measurement
• Stm (Software Transactional Memory)
Next: FSharpx.Async 2/26/2012 3

4. FSharpx.Async
• Courtesy of Tomas Petricek
• Async Extensions
• Improvements for IObservable
• Agents
Next: FSharpx.Observable 2/26/2012 4

5. FSharpx.Observable
• Courtesy of Phil Trelford
• MiniRx
• Improvements for IObservable
• TODO: Merge with FSharpx.Async
Next: FSharpx.Http 2/26/2012 5

6. FSharpx.Http
• Courtesy of Mauricio Scheffer & Steffen Forkmann
• FsConneg
• JSON Parser
• What else belongs?
• Coming with .NET 4.5
o Async extensoins for System.Net.Http.HttpContent
o Async extensions for System.Net.Http.MessageHandler
Next: FSharpx.TypeProviders 2/26/2012 6

7. FSharpx.TypeProviders
• Courtesy of Steffen Forkmann
• DSL for building type providers
Next: What’s coming? 2/26/2012 7

8. What’s coming?
• More tests
• More documentation
• Merge to Core
Next: What’s next? 2/26/2012 8

9. What’s next?
• “Type classes”
• More Type Providers
Next: Questions 2/26/2012 9

10. Questions
• http://speakerrate.com/talks/9335-introduction-to-fsharpx
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