Introduction

We will learn more advanced tips in this chapter. First we will hack the Clojure code to understand how Clojure code works. We will generate class files from Clojure code and then decompile Java code. Understanding how Clojure code is a lot of fun and useful.

Next, we will look at how to write source code that keeps the compatibility between Clojure and ClojureScript and runs on both environments. As ClojureScript is getting more popular nowadays, single code running on both environments improves maintainability, especially writing libraries.

Then, we will try to share REPL real time from a remote client. Using this mechanism, we will try to control the Raspberry Pi from your PC.

Lastly, we will learn prismatic schema, which enables us to define and validate schemas for data. This library is very useful to define data shapes and validate. We will introduce core.types and clojure.spec, which are the most major features of Clojure 1.9.