Nachdem es sich die letzten beiden Jahre mehr und mehr angekündigt hat, wurde der .NET Open Space in Leipzig nun in Dev Open Space 2012 umgetauft. Dies trägt dem Punkt Rechnung, dass die Themenwünsche der Teilnehmer immer breiter geworden sind und wir uns vor allem auch über git, Ruby, JavaScript, HTML5, node.js, CQRS und vieles [...]

I’m happy to announce that I’m giving one of the “Progressive F# Tutorials 2012” in London this year. This event is going to be legendary. Abstract: Test-Driven Development can give you a lot of benefits for your code but also needs a lot of practice. Come to this session and learn how to master TDD [...]

After the official Visual Studio 2012 launch yesterday I think it’s a good idea to announce two new type providers which are based on the DGMLTypeProvider from the F# 3.0 Sample Pack. Synchronous and asynchronous state machine The first one is only a small extension to the DGMLTypeProvider by Tao. which allows to generate state [...]

In the last post I wrote about the PersistentVector which I ported from Clojure to .NET. It’s implemented as an immutable hash array mapped trie which optimizes the constant factors so that we can assume O(1) for count, nth, conj, assocN, peek and pop. But for some applications Rich Hickey shows us that we can [...]

Rich Hickey created a very nice set of persistent collections for Clojure. I started to port them to FSharpx and today I want to present the PersistentVector. The basic idea is that we want to have something like an array but immutable. Vectors (IPersistentVector) A Vector is a collection of values indexed by contiguous integers. [...]