March 2018
Intermediate to advanced
244 pages
6h 10m
English
Content preview from Adopting 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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Typespecs and Dialyxir
Functional languages depend heavily on types to determine how functions interact with one another. You can dramatically improve a function’s declaration of intent with typespecs. A typespec annotates the expected input and outputs of a function. Typespecs aren’t required, but they may be worthwhile because they require the developer to explicitly state what a function accepts and what it returns.
Since many bugs creep in at system boundaries such as function interfaces, declaring and enforcing types when you make your function definitions lets you find bugs and improve documentation for your programs. Typespecs are a consistent and repeatable way to document your system and decrease bugs. They’re especially useful for ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
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.