JavaScript Absolute Beginner's Guide, 2nd Edition

13. Arrays

In This Chapter

• • Use arrays to handle lists of data

• • Learn how to perform common tasks using the various Array properties

Let’s imagine you are jotting down a list on a piece of paper. Let’s call the piece of paper groceries. Now, in the paper, you write a numbered list starting with zero with all the items that belong there, as shown in Figure 13.1.

FIGURE 13.1

A list of items that resembles a grocery list.

By simply creating a list of things, what you have right now is a real-world example of an array! The piece of paper called groceries would be your array. The items that you need to purchase are known as the array values. ...