CHAPTER 5

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Pattern Matching

So far, we’ve explored some of the basic functional cornerstones of Scala: immutable data types and the passing of functions as parameters. The third cornerstone of functional programming is pattern matching. Pattern matching provides a powerful tool for declaring business logic in a concise and maintainable way. Scala blends traditional functional programming pattern matching with object-oriented concepts to provide a very powerful mechanism for writing programs. In this chapter, we’re going to explore the basics of pattern matching. Then we’re going to see how Scala’s case classes bridge between object-oriented data ...

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