September 2014
Intermediate to advanced
320 pages
10h 23m
English
Content preview from Functional Programming in ScalaBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Chapter 3. Functional data structures
We said in the introduction that functional programs don’t update variables or modify mutable data structures. This raises pressing questions: what sort of data structures can we use in functional programming, how do we define them in Scala, and how do we operate on them? In this chapter, we’ll learn the concept of functional data structures and how to work with them. We’ll use this as an opportunity to introduce how data types are defined in functional programming, learn about the related technique of pattern matching, and get practice writing and generalizing pure functions.
This chapter has a lot of exercises, particularly to help with this last point—writing and generalizing pure functions. Some of ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.