chrisalexander/dependency-rejection

Dependency rejection

A brown bag / workshop based on Mark Seemann's excellent NDC London presentation / blog series.

Resources

• Functional
• Scala comic
• Mark's original blog series
• Ports and Adapters diagram

Agenda

• A note about what it means to be "functional" - will later drive by Haskell
• What are we trying to do? DI in F#
• Example of C# constructor injection
• Example of F# partial application
• Decompiling the F# partial application to C#
• Functional purity
  • Haskell IO type
  • LOL F#
• Function composition
  • Reject composition
  • Pure and impure sandwich
• Brief mention of Ports and Adapters