Debugging Reference - Knowledge Base

What is Debugging?

Debugging is the process of identifying and removing errors (bugs) from software. It’s a critical part of the software development lifecycle. Effective debugging involves systematically isolating the root cause of a problem and implementing a solution.

Common Debugging Techniques

Print Statements: Inserting `print` statements to display variable values and track program flow.
Debuggers: Utilizing integrated development environment (IDE) debuggers to step through code, set breakpoints, and inspect variables.
Logging: Using logging libraries to record events and errors for later analysis.
Rubber Duck Debugging: Explaining the code line by line to an inanimate object (like a rubber duck) to identify the problem.

Debugging Tools

Chrome DevTools: A powerful browser-based debugging tool for JavaScript and web technologies. (Learn More)
VS Code Debugger: Extension for Visual Studio Code that provides debugging support for various languages.
GDB (GNU Debugger): Command-line debugger commonly used for C, C++, and other languages.

Debugging JavaScript

When debugging JavaScript, pay close attention to these common issues:

Syntax Errors: Errors in the structure of the code.
Runtime Errors: Errors that occur during the execution of the code.
Logical Errors: Errors in the logic of the code that cause it to behave incorrectly.


            function calculateSum(a, b) {
                // Potentially incorrect logic here
                let sum = a + b;
                return sum;
            }