This is a lesson I should have learned. It comes back to bite me and my coworkers ever so often. Running a script to update data without test is always quick and dirty. SSIS is a wonderful tool, but there are fundamental flaws to this tool as it’s really [...]

Tomorrow I'm at the F#unctional Londoners Meetup at SkillsMatter, doing an informal "deep dive" into the Freebase Type Provider. Kick off at 6:30 pm,The Skills Matter eXchange, 116-120 Goswell Road, EC1V 7DP, London (map) Do your home work before the even[...]

As programmers we often want to express that a special property holds for a method, e.g. we want to say that the associativity law holds for list concatenation. In F# we could define a concat method like this: As programmers we could write a couple of uni[...]

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Welcome to F# Weekly, A roundup of F# content from this past week: News Tomas Petricek shared examples of “Charting World Bank data with F#“. F# 3.0 is now part of Mono 3.0.2 bundle on Mac. New section “Math Stacks for F#” was published on The F# Software[...]

Sometimes in F# it is useful to use LINQ extension methods such as .Take(n), .Skip(n) and .Count(). However, in F# some LINQ extension methods such as .Where(...) and .Select(...) require a type annotation on the lambda variable. This is one of the relati[...]

At the Visual F# team, we're glad to be contributors to the broader F# language and community through the Visual F# tools, the free F# Tools for Visual Studio Express 2012 for Web, and the open source code drops of the F# compiler and libraries. As part o[...]

Reading source code is hard. One way of dealing with this is rewriting what is not understood. This can help focus on some parts of the code, but can be detrimental since it’s easy to overlook functionality in files that are not touched or files that look[...]

Reading source code is hard. One way of dealing with this is rewriting what is not understood. This can help focus on some parts of the code, but can be detrimental since it’s easy to overlook functionality in files that are not touched or files that look[...]