How to Use This Book

Code lines, commands, statements, classes, and any other code-related terms appear in a monospace typeface. Occasionally, when a line of code is too long to fit on a printed line in the book, a code-continuation arrow (Image) is used to signal the continuation.

Each chapter begins with a list of topics and an overview and ends with a summary and Q&A session. Within the chapters, you’ll find the following elements that provide additional information:

By the Way

By the Way notes give extra information on the current topic.

Did You Know?

Did You Know? tips offer advice or describe an additional way of accomplishing something.

Watch Out!

Watch Out! cautions signal you to be careful of potential problems and give you information on how to avoid or fix them.

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