This chapter focuses on one of the most important skills for every developer — finding and fixing errors in code.
No programmer writes perfect code all the time. Errors are a natural part of development, and professional developers know how to handle them properly instead of being afraid of them.
In this chapter, students will learn how to:
- Understand different types of errors in JavaScript
- Use try, catch, and finally blocks
- Throw custom errors
- Read and understand error messages
- Use console methods for debugging
- Debug code using browser developer tools
- Find bugs faster and fix them confidently
By the end of this chapter, students will not only write code but also know how to debug it like real developers — a critical step toward becoming job-ready and confident in JavaScript.