Showing posts from Functional Programming

How a Strong Type System Saves You Documentation, Tests, and Nerves

How a Strong Type System Saves You Documentation, Tests, and Nerves

I was recently inspired to finally write this post. Especially in weakly- or untyped languages, such as the JavaScript or PHP world, the added value of strict type systems is often not recognized. Instead, many discussions and comments revolve around the need for tests or code comments. Contrary to that, in the functional programming world, we leave such checks to the compiler. In this post I would like to give a short overview and explain how to use a strict type system for everyday checks instead of writing type checks, tests and documentation for it.

Java Libs in Scala - A bit more Functional

Java Libs in Scala - A bit more Functional

Every Java library can be used in Scala, which is, for me, one of the good parts of the JVM world. But Java libs are mostly object-oriented and not functional, therefore full of side effects and somtimes “ugly” to use in Scala. But there are some approaches how to make Java libs (or their interfaces) more functional, so they can almost be used like a Scala lib.

Functional Java 1 - Options

Functional Java 1 - Options

This is the first post of my series about functional programming in Java. There’s a lot of functional stuff one can do. Everyone knows the Java 8 Lambda expression, but with a little library support, there is way more… In this series, I’ll coder som libraries which provide functional paradigms and constructs for Java:

Scala Compiler Tuning

Scala Compiler Tuning

As my Scala projects go on, I want to share some compiler configuration and tricks with you, which I use on many projects. Some tiny configuration options can greatly improve your code and warn you about things, you would probably never discover.