Many applications want to use multiple cores to execute faster, while retaining the same observable behavior as the sequential version. In this blog I develop a simple F# workflow builder, slightly resembling Async, that allows deterministic logging in presence of parallelism: logs order is entirely determined by the program source (sequential semantics), yet they are available as soon as possible, and the execution model is parallel.

We are happy to announce the availability of the most recent WebSharper update, version 2.5.93, released on Feb 4, 2014. This release brings a new and improved optimizer for the Core language that is used as an intermediate form during compilation to JavaScript. The optimizer is able to eliminate more JavaScript expressions, generates more readable code, and improves JavaScript performance of numeric code (such as code using for loops heavily) by 30-50%.

We are happy to announce the general availability of WebSharper 2.5, and the corresponding new WebSharper site that has gone through a major facelift. I plan to blog about the major individual features in detail as separate blog entries, until then, here is a short list of the main changes.

Has not been said yet, I do not think. In the F# world you may be looking at: MSBuild FAKE IntelliFactory.Build I am not going to do a detailed pro/con analysis of these just yet, but note that every one of them is currently missing abstractions relevant for this problem domain - building. A build system should allow you to do at least what veritable Makefile does - optimal rebuilds, but at an abstract level, as a library. The best system I have seen so far that gives you these abstractions is Sh[...]

Got asked to compare WebSharper to TypeScript on StackOverflow, doing it here instead. Disclaimer: I work for IntelliFactory and in fact develop WebSharper, so I am obviously biased. Good things to say about FunScript: seems to be entirely unrestricted (I could not even locate a license file) has some very talented people hacking on it (but not as the day job) has this wonderful idea of using TypeScript definition files to provide typed API for JavaScript libraries (however, at this moment it does not wo[...]