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Power of mathematics: Reasoning about functional types
In this article, I explore the amazing relationship between functional data types and algebraic operations. We will use this relationship to reason about domain model and understand the differences between several possible representations.

English | 5/14/2013
Async in C# and F#: Asynchronous gotchas in C#
This article is inspired by an MVP summit talk about common pitfalls in the C# asynchronous programming model. I look at a number of easy to make mistakes when writing asynchronous code in C# and demonstrate that most of them would not easily happen when using F#.

English | 4/15/2013
F# Data: New type provider library
F# Data is a new library that gives you all you need to access data in F# 3.0. It implements type providers for WorldBank, Freebase and structured document formats (CSV, JSON and XML) as well as other helpers. This article introduces the library and gives a quick overview of its features.

English | 3/28/2013
Upcoming F# talks and trainings (London, NYC & Boston)
After a few years, I will be attending the MVP summit again this year. The good news for those interested in F# is that I have two talks scheduled along the way in New York and Boston. Aside from that, we also have dates for a new F# course in London and New Year!

English | 2/7/2013
Announcing: Literate programming tools for F#
This article introduces a new F# package that makes it possible to write literate F# programs that combine code with documentation. Given an F# script with a special comments or Markdown document with F# code, you get a nicely formatted HTML that can be used to build documentation or write blogs.

English | 1/22/2013

Microsoft C# MVP

Microsoft C# MVP

I have been repeatedly awarded MVP for various contributions to the C# and F# communities.

F# Web Tools

The F# Web Tools augment the F# distribution with tools to author homogeneous client/server/database web applications in one type-checked project. The modal distinctions between client and server are checked through the use of F# workflows, and LINQ can be used for database access. In the first version, parts of the application are dynamically served as JavaScript. Planned extensions include serving client-side portions as Silverlight code.

The goal of the project is to deal with the following three essential problems that authors of "Ajax" based web applications have to deal with:

Limited client-side environment - Significant part of the application runs on the client-side and the most common execution environment available there is JavaScript, which is a problematic language for more complicated tasks. In F# WebTools you can use F# for developing client-side code and it is even possible to use subset of standard F#/.NET libraries.
Discontinuity between server and client side - "Ajax" applications are written as two separate parts (one running on the client and second on the server) that need to communicate often, but currently it is possible to do it only using web services or similar technologies. In F# Web Tools where the code for both parts is written in a single file, you can simply use function calls.
Components in web frameworks are only server-side - Finally, writing "Ajax" style applications in object-oriented frameworks (like ASP.NET) is difficult, because there is no way for implementing interactions between components that should occur on the client side. In F# Web Tools the 'component' can expose both client and server-side methods and events that can be used for defining these interactions.

Project Links

F# Web Tools Project - CodePlex
Rich client/server web applications in F#
Ajax-style Client/Server Programming with F# - Slides from the presentation at MSR Cambridge

F# Web Tools Articles

Published: October 11, 2007 02:43