3D Game Programming for Kids, 2nd Edition

Simple Objects

Anything that we can touch or talk about in the real or virtual world can be described in computer programming: an avatar, a car, a tree, a book, a movie. Anything. When programmers talk about things in the computer world, we call these things objects. Let’s think about movies. I think we can all agree that Star Wars is the greatest movie of all time, right? Of course we can.

Well, let’s describe Star Wars as a JavaScript object. Add the following below “Your code goes here…”:

​var​ bestMovie = {
  title: ​'Star Wars'​,
  year: 1977,
};

Hey, wait. Isn’t that just a map, which we first met all the way back in Chapter 7, ​A Closer Look at JavaScript Fundamentals​? The answer is, Yes! But it ...