Chris Richardson describes how to implement business logic using a domain model that is based on event sourcing. He compares and contrasts a hybrid OO/FP design with a purely functional approach.
Mickael Istria showcases a number of extensions to the Eclipse IDE making it easier to import projects (simple or complex) and honoring modularity in the Project Explorer.
Anil Wadghule explains why applying SOLID OO design principles to their extreme leads to Functional Programming.
David Tanzer, Oliver Zymanski explain with examples how to apply the rules and principles of object-oriented software design to create simple architectural designs.
Jessica Kerr explains through Java and C# code samples six principles of the functional programming style.
David Nolen introduces Om, a ClojureScript library that adds a functional layer on top of Facebook React, providing OO abstractions in a MVC environment.
Gerard Meszaros advises on using the right abstraction level and automation tools when creating unit or system-level tests.
Josh Suereth discusses Scala: expressions, abstracting behaviors, FP & OOP, Futures & Promises, libraries with implicit classes and value classes, tracking lexical state with implicit values.
Marc-Daniel Ortega shares code snippets showing how to implement some logic in a functional language inspired by “Functional Programming in Scala”, avoiding the OOP influence.
Tijs van der Storm discusses object algebras as a solution to the expression problem – the inability to extend functional programming languages.
The authors introduce a new language paradigm meant to enhance OOP with multi-dimensional context, providing details on context-based dispatch, and showing a glimpse of their early prototype.
Crista Lopes writes a program in multiple styles -monolithic/OOP/continuations/relational/Pub-Sub/Monads/AOP/Map-reduce- showing the value of using more than a style in large scale systems.