Scala for the Impatient, 3rd Edition

Chapter 12. Higher-Order Functions

Topics in This Chapter L1

• 12.1 Functions as Values

• 12.2 Anonymous Functions

• 12.3 Parameters That Are Functions

• 12.4 Parameter Inference

• 12.5 Useful Higher-Order Functions

• 12.6 Closures

• 12.7 Interoperability with Lambda Expressions

• 12.8 Currying

• 12.9 Methods for Composing, Currying, and Tupling

• 12.10 Control Abstractions

• 12.11 The return Expression

• Exercises

Scala mixes object orientation with functional features. In a functional programming language, functions are first-class citizens that can be passed around and manipulated just like any other data types. This is very useful whenever you want to pass some action detail to an algorithm. In a functional language, you just wrap that detail into a function ...