In this chapter, you will learn some basic JavaScript data types. When you want the computer to hold onto some information, that information is of a certain “type.” For example, an email address is a type called String. The computer recognizes that your email address is a series of letters, numbers, and symbols.
If you want to perform a calculation, the computer will consider the data that you are using to perform that calculation as a number. It can calculate numbers but not strings.
As you go through the chapter, you will explore some of these data types. In addition you will also see how variables ...