Clojure runs in a REPL process that provides instant feedback as code is written, encouraging experimentation and allowing designs to evolve rapidly and with confidence.
About the book
The REPL is the Clojure interactive environment used to create an run all code. You will quickly get a feel for Clojure by evaluating, breaking, fixing and extending code in the REPL, all the while getting instant feedback on what your code is doing.
As we work through code we will discuss the concepts behind Clojure, including functional programming, "pure" functions and a stateless approach with persistent data structures, changing state safely, Java interoperability and tooling around Clojure.
- practicalli/clojure-deps-edn - Clojure tools and common aliases
- Practicalli Spacemacs and practicalli/spacemacs.d for Vim style editing in Emacs for Clojure.
- Practicalli YouTube channel - 80+ hours of Clojure related videos
- Practicalli website books and videos to support your journey into Clojure
Discussions and feedback
Contributions are welcome via GitHub issues and pull requests, or discuss the book on the Clojurians Slack community.
Content regularly added to this book
Quote: Adrian Cockcroft. Cloud Architect, Netflix
"A lot of the best programmers and the most productive programmers I know are writing everything in Clojure and swearing by it, and then just producing ridiculously sophisticated things in a very short time. And that programmer productivity matters." Adrian Cockcroft - Battery ventures, formally Cloud Architect, Netflix