February 2018
Intermediate to advanced
350 pages
7h 35m
English
Content preview from Functional Kotlin
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Implementing immutability in Kotlin
Unlike Clojure, Haskell, F#, and the likes, Kotlin is not a pure functional programming language, where immutability is forced; rather, we may refer to Kotlin as a perfect blend of functional programming and OOP languages. It contains the major benefits of both worlds. So, instead of forcing immutability like pure functional programming languages, Kotlin encourages immutability, giving it automatic preference wherever possible.
In other words, Kotlin has immutable variables (val), but no language mechanisms that would guarantee true deep immutability of the state. If a val variable references a mutable object, its contents can still be modified. We will have a more elaborate discussion and a deeper dive ...
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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.