February 2018
Beginner
200 pages
4h 37m
English
Content preview from Learn Functional Programming with ElixirBecome 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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Using Protocols to Create Polymorphic Functions
Elixir’s protocol is a feature that lets you create a single interface that various data types can implement. Using that, you can have polymorphism: a single interface that works with different data types. If you came from object-oriented languages like Java, you’ll see that it’s very similar to how interfaces work. Elixir protocols will help you create simple interfaces, leading to a better codebase design.
In this section we’ll explore more about structs, including structs that reference other structs. We’ll refactor our code to create a reusable module that shares functions between heroes and action selections. Then we’ll build polymorphic functions with protocols to display heroes and actions. ...
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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.