Ep 087: Polymorphic Metal

Functional Design in Clojure

Each week, we discuss a different topic about Clojure and functional programming.

If you have a question or topic you’d like us to discuss, tweet @clojuredesign, send an email to [e-mail], or join the #clojuredesign-podcast channel on the Clojurians Slack.

This week, the topic is: “multimethods.” We discuss polymorphism and how we tackle dynamic data with families of functions.

Selected quotes:

• “You don’t have to reach for polymorphism as quickly in Clojure.”
• “Polymorphism at its simplest.”
• “A natural fit for processing a list of heterogeneous things.”
• “Our natural tool of computation: the function.”

Links:

• defmulti
• defmethod
• Multimethods and Hierarchies
• defmethod in Pyrite font