Object Functional Programming

on YouTube ↗48m

" summary

Scala claims to unify FP and OO by implementing many features with a small core: traits, objects, implicits and open recursion. It shows concrete benefits — functions are objects via FunctionN, records become case classes with copy/unapply for updates and pattern extraction, ADTs use sealed classes for exhaustiveness, and type classes are first‑class via implicit evidence and resolution rules. It also notes costs: JVM constraints, surprising flexibility that causes style confusion, and real compiler/tooling tradeoffs.

AI-written summary · about

" chapters (7)

1. 0:00Introduction and perspective
2. 2:44Critique of paradigms
3. 7:19Defining objects and functions
4. 12:01Scala as a unified model
5. 14:15Showcasing Scala features
6. 31:25Implicits and type classes
7. 44:01Trade-offs and conclusion

" related talks

• 19mScala for the Rest of UsPaul Cleary · Scale By the Bay 2017
• 01h 50mObject-Functional Patterns in ScalaVitaliy Savkin · JavaDay Kiev 2014
• 35mFunctional Programming is TerribleRúnar Bjarnason · Northeast Scala Symposium 2014
• 49mOOP versus Type Classes in ScalaAlex Nedelcu · Scala Love in the City 2021
• 01h 03mIntro to FP in Scala: Exploring a Toolbox for Solving Problems - Part 4 of 6Pawel Szulc · LambdaConf 2017
• 01h 00mIntro to FP in Scala: Exploring a Toolbox for Solving Problems - Part 2 of 6Pawel Szulc · LambdaConf 2017
• 01h 00mIntro to FP in Scala: Exploring a Toolbox for Solving Problems - Part 1 of 6Pawel Szulc · LambdaConf 2017
• 59mIntro to FP in Scala: Exploring a Toolbox for Solving Problems - Part 3 of 6Pawel Szulc · LambdaConf 2017