Move beyond "guess and check"

The general approach to debugging

• Develop a testable hypothesis
• Test it in the simplest possible case

Questions to ask when developing your hypothesis

• What type of problem do you have?
• What is your goal for the code?
• Does the code have all the necessary steps?
• Does the code need updated since previous uses?

Strategies for your testing

• Keep your goal or goals in mind
• Go line-by-line
• Add comments as you go
• Read the documentation for the functions you are using

Quiz