3. Functions in Depth

Overview

In this chapter, we will take a deep dive into Clojure's functions. We discover destructuring techniques and advanced call signatures. We take a closer look at the first-class aspect of functions and learn how it enables functional composition, as well as advanced polymorphism techniques. This chapter teaches techniques that will significantly improve the conciseness and readability of your code. It lays down a solid basis to prepare you for the second part of this book about manipulating collections.

By the end of this chapter, you will be able to implement features such as destructuring, variadic functions and multimethods when writing functions.