Unit 6: Advanced Features & Testing
The Art of Debugging
**Debugging** is the process of finding and fixing errors, or “bugs,” in your code. It’s a normal and essential part of development. The key to being a good developer isn’t just writing code, it’s also being great at fixing it.
A simple but powerful debugging technique is to use the browser’s developer tools. You can log messages to the console to see what’s happening behind the scenes, or step through your code line by line to watch for unexpected behavior.
User Acceptance Testing (UAT)
After you think your app is working perfectly, it’s time for **User Acceptance Testing (UAT)**. This is when you ask real people to use your app and give you feedback. A bug that’s obvious to you might not be obvious to a user, and a user might find a problem you never even thought of!
UAT is crucial because it confirms that your app not only works but also solves the problem it was designed for from the user’s perspective. It’s the final step before you can present your finished project.
Interactive Activity: Fix the Bug!
The code below is supposed to add two numbers, but it’s not working correctly. Use the editor to fix the bug, then click “Run Code” to test your solution!
Editor:
Output:
Click "Run Code" to see the output.
Interactive Quiz: Test Your Knowledge
Answer these questions to see how well you understand debugging and testing.
Your Mission
Think about your project. What are some potential “bugs” you might encounter? How could you get feedback from friends or family (UAT) to make sure your app works the way you intended?
