Ch04 Ep02: Fearless Refactoring with Functional Programming | Scala

Julien Truffaut demonstrates how the rules of purity, totality, and determinism enable safe and fearless code refactoring in Scala.

In FP, functions must satisfy three rules: they must be total, deterministic and pure, which means that they don’t perform actions, they only produce a value. Those rules are really constraining. So if we want people to follow them, they must provide significant advantages, otherwise no one would make the effort. /* ----- SOCIAL MEDIA ----- */ Follow Me On Social Media At: twitter.com/JulienTruffaut linkedin.com/in/julientruffaut/ patreon.com/julien_truffaut Video produced by Future Sun futuresunfilms.com/