Chapter 3. Making Data Useful
At its core, D3 is a data manipulation library. We're going to take a look at making our datasets useful with both D3 and plain old JavaScript.
We start with a quick dive into functional programming to bring everyone up to speed. A lot of this will be self-evident if you use Haskell, Scala, or Lisp, or have already been writing JavaScript in functional style, but it's worth reviewing so that we can contrast it with the object-oriented style we use in our classes.
We will continue loading external data and taking a closer look at scales, and finish with some temporal and geographic data.
Thinking about data functionally
Due to the functional design of D3, we have to start thinking about our code and data with a functional ...
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