JavaScript Absolute Beginner’s Guide

14. 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, on this sheet of paper, you write a numbered list starting with zero with all the items that belong there such as what you see in Figure 14.1.

FIGURE 14.1 An example of 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 array values ...