Ep 061: Transcendental Transformations

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 [email protected], or join the #clojuredesign-podcast channel on the Clojurians Slack.

This week, the topic is: "Transducers." We unpack transducers and find a familiar pattern that enables freedom from collections.

Selected quotes:

• "The humble sequence. It is a mighty abstraction."
• "Your reducing function can get more abstract by passing in the reducing function that handles producing the result."
• "This is mind-bending enough, it's worth saying again in a different way."
• "We have a function that returns a function that returns a function!"
• "The cool thing about reducing functions is that they're not about collections. They are about reduction."

Links:

• Transducers - Reference
• Transducers are Coming - Rich's introductory blog post
• What are good use cases for transducers? - From the Clojure FAQ
• Reducers, transducers and core.async in Clojure