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Using Variables

Unless you skipped the first four hours of this book, you've already used a few variables. You probably can also figure out how to use a few more without any help. Nevertheless, there are some aspects of variables you haven't learned yet. We will now look at some of the details.

Choosing Variable Names

Variables are named containers that can store data (for example, a number, a text string, or an object). As you learned earlier in this book, each variable has a name. There are specific rules you must follow when choosing a variable name:


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