PurelyFunctional.tv Newsletter 292: Composition, Modeling, Scope
Well, I'm looking forward to getting back into the swing of things after a few weeks of moderate work on PurelyFunctional.tv due to the birth of my daughter. Have I missed anything in the Clojure world while I was out? Let me know.
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I have a couple of spots open for client work. I'm currently offering two specialized services. These are open for remote or on-site:
Clojure Kickstart is training to get your team of programmers productive in Clojure. Get the skills, the tooling, and the workflow you need to make the most of Clojure.
After the Prototype is where I and your team workshop a powerful core abstraction and come up with a plan for refactoring it into your codebase.
If you or someone you know are interested, please reply to this email.
Stephen Colebourne explains what is known about Oracle's new licensing and planned release cycles for their JVM and JDK. This article cleared up a lot about what JDK I should choose and recommend in the future. Daniel Compton linked to this in The REPL, but I thought it was important enough to share again.
The Power of Composition YouTube
Scott Wlaschin explains why functional programmers like composition, and some of the cool things we can do with it.
Katherine Kirk & Dan North talk about company culture and systems thinking using asian philosophical ideas.
Datomic Ions YouTube
Stuart Halloway explains Datomic Ions. This one goes into depth about what it is and how it works. It's over an hour long.
Domain Modeling Made Functional YouTube
Scott Wlaschin talks about modeling different business domain requirements using only the type system. It includes optional values, validation, and more complex requirements.
One of the important parts of my theory of functional programming is that composing anything with an action results in a new action. That means that actions are easier to create than the other two domains (calculations and data). I talk about that in this episode of my podcast.
Clojure Scope Video Course
Scoping rules are a very important part of any language. Clojure has three types of scope, and knowing how to use each will help you write maintainable code. That's what this short course (40 minutes) will teach you. I sometimes think that this is too basic of a course, but it fits well with my goal of making PurelyFunctional.tv the most comprehensive Clojure training available.