Chapter 3Collections, Iteration, and Destructuring
All code is, at its core, about data: reading data, transforming data, and emitting data. As software developers, we’re constantly tasked with designing the structures that contain this data. Luckily, JavaScript makes it easy to manipulate two of the most powerful structures known to computer science: arrays and hash maps. And CoffeeScript goes one step further, streamlining the syntax for working with these fundamental entities.
In this chapter, we’ll start with a refresher on how the JavaScript language allows every object to serve a dual purpose as all-purpose storage. Then we’ll get into arrays, which give us a more ordered place to save our bits. From there, we’ll segue into loops, the ...
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