July 2018
Intermediate
186 pages
3h 24m
English
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Chapter 8. Domain Specific Languages
In the previous chapter, we covered the core concepts of functional programming such as pure functions, immutability, and higher-order functions. We introduced some of the design patterns that are prevalent in large functional programs. Finally, we covered two popular functional programming libraries called Cats and Doobie and used them to write some interesting programs.
In this chapter, we will cover how Scala makes it possible to write powerful DSLs by providing a few interesting language features. We'll have a brief look at what DSLs are in general terms. We'll also cover a DSL that you'll very likely be using if you're going to work with Scala professionally. Finally, you will implement your own DSL.
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