15. Finding and Fixing Program Errors

Compared to most programming languages, Scratch is less prone to many types of programming errors, often referred to as bugs. As a programmer, your job is to seek out and remove all of the programming bugs from your applications and to ensure that they operate as they are supposed to. That’s where this chapter comes in. By the time you are done reading it, you will have a solid understanding of the types of errors that Scratch is susceptible to and the basic steps involved in tracking down and fixing them. In addition, you will learn about different resources that you can turn to in order to get help.

The major topics covered in this chapter include:

• Understanding the differences between syntax, logical, and run-time errors

• Learning how to run applications in single stepping mode

• Accessing code block help

• Getting help from the Scratch global community