Browse Functional Programming with Clojure

Functional Programming with Clojure

Master functional Clojure on the JVM through pure functions, persistent data, composition, laziness, concurrency, macros, testing, and production design trade-offs.

Use this track when basic Clojure syntax is familiar and the next challenge is designing real functional systems on the JVM. The lessons focus on values, pure functions, composition, laziness, controlled effects, polymorphism, testing, macros, and production trade-offs that Java engineers must handle deliberately.

Study area What to practice Java habit to revisit
Functional core Pure functions, persistent data, composition, recursion, and lazy sequences Treating objects as the default unit of behavior and state
Runtime boundaries Effects, interop, concurrency, reactive flow, and deployment Hiding side effects behind mutable service objects
Engineering judgment Testing, performance, refactoring, macros, libraries, and architecture Optimizing for class symmetry instead of data flow and reviewability

In this section

Revised on Saturday, May 23, 2026