midScala
What is functional programming in Scala?
Updated May 24, 2026
Short answer
A paradigm focusing on pure functions and immutability.
Deep explanation
FP avoids side effects, uses higher-order functions, and emphasizes declarative programming.
Real-world example
Used in distributed systems like Spark.
Common mistakes
- Mixing side effects with pure logic.
Follow-up questions
- What is a pure function?
- Why is FP scalable?