Start with the Right Mindset

Debugging is not about guessing. It's about gathering evidence and narrowing down the problem systematically. In Node.js, the tools are built-in and powerful, but most developers only use console.log. Let's change that.

Use the Built-in Debugger

Node has a built-in debugger that you can start with node inspect. It's a step-by-step command-line debugger. For example:

node inspect app.js