There are many classics of functional programming that can help you take your thinking to the next level. My recommendations are for making you think in a new way.
Global mutable state is one of the biggest drivers of complexity in software systems. We tackle a definition and how to reduce our reliance on it.
Functional programming, from one perspective, is just a collection of habits that affect our programming. I've identified the cues for those habits and a routine for replacing imperative code with functional code.
If you're a Rubyist and you've heard some buzz about Clojure, these videos and links will be just for you. Rubyists teaching Clojure, Clojurists introducing Clojure to Ruby programmers, and Rubyists pontificating on Clojure.
Professional Clojure programmers rely on certain features of their editors to help them program. When choosing an editor, it's important to pick one that has these two important features: REPL integration and structural editing.
Would you like to optimize your learning of Clojure? Would you like to focus on learning only the most useful parts of the language first? Take this lesson from second language learning: learn the expressions in order of frequency of use.
The SOLID principles are guidelines for writing good Object-Oriented code. It turns out that these principles are followed and embodied in Clojure.
Learning any new language is a challenge, and Clojure is no different. Finding the time to learn and practice is a real challenge, so we need to make the most of what time we have. These tips will help you immerse yourself in Clojure.
Clojure uses both parentheses and square brackets as part of its syntax. It might at first appear to be arbitrary, but it's actually systematic. What's more, it reveals one of the coolest things about Clojure: expressions define how they interpret their arguments.
I've made some cheatsheets to help me learn clj-refactor, some Emacs software that helps you make systematic changes to code.