Principles of Scala FP

Scala supports all FP features. However, it is not easy to cover them in a single chapter. So we will discuss only the following few important FP features in this chapter:

• Pure functions
• Immutability (Immutable data)
• Referential transparency
• Functions are first-class citizens
• Anonymous functions
• Higher-Order Functions (HOF)
• Currying
• Tail recursion
• Implicit
• Typeclasses