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Relevance, Inc. co-founder Stuart Halloway discusses Clojure and functional programing on the JVM in depth, and touches on the uses of a number of other modern JVM languages including JRuby, Groovy, Scala and Haskell. He also makes a case for structural edit modes in IDEs, and shares some of his favorite IT books.
Clojure 1.1 RC1 is out and cuts the overhead of functional programming with a few new constructs: transients bring controlled mutability for persistent data structures; chunked sequences make lazy sequences more efficient. InfoQ takes a look at what makes these improvements work.
FlightCaster recently open sourced Crane, a tool for distributing and remotely controlling Clojure instances, currently specialized for EC2. Incanter is a Clojure library and tool that makes R-like statistical computations easy with Clojure. Also: the build and dependency management tool Leiningen 1.0 is now available.
FlightCaster, a realtime flight delay site, is built on Clojure and Hadoop for the statistical analysis. The web frontend is built with Ruby on Rails and hosted on Heroku. We talked to Bradford Cross about Clojure, functional programming and tips for OOP developers interested in making the jump.
Since Robert Pickering published Foundations of F# in May, the language has grown significantly. Besides adding a host of new features, it is being moved from a research project to a fully supported, production-grade release. We asked Robert to discuss some of the new features in F#.
Amanda Laucher and Josh Graham introduce the audience to F# basics showing some of its main features, emphasizing what makes it better than imperative languages. Laucher also presents the case of a real life application where she rewrote large portions of C# code replacing it with dense fast executing F# instructions.
Sadek Drobi shows how he applied functional programming principles to a real-life project which needed to meet certain performance requirements. He shares the lessons learnt on using mutation, laziness, recursion, functions, monads, list comprehensions and parallelization in an attempt to achieve a functional domain model.
In this interview, Yukihiro Matsumoto talks about programming languages design and decisions he had to take while designing Ruby. He also discusses other programming languages including Haskell, Scala, Python and Clojure. While talking about Ruby language and functional programming, Matz explores opportunities of integrating some of FP into Ruby and imagines a purer IO approach for it.
John Hughes has ported QuickCheck from Haskell to Erlang. In this interview, he contrasts the two languages, outlining features that he finds more attractive in each of them. He also explains how QuickCheck works and what makes it different from unit tests.
