How can I debug errors in Node.js?

How can I debug errors in Node.js?

You can use built-in tools like the Node.js debugger, or external tools like Visual Studio Code. What specific error are you facing?

I'm getting a 'TypeError: Cannot read property of undefined' error.

This error usually means you're trying to access a property on an object that is undefined. Check your variable assignments and ensure the object is defined before accessing its properties.

How can I set breakpoints in my code?

In Visual Studio Code, you can click in the gutter next to the line numbers to set breakpoints. Then run your code in debug mode.

What should I do if the debugger doesn't stop at my breakpoints?

Make sure you're running your code in debug mode and that the breakpoints are set in the correct file. Also, check if the code is being executed.