How to debug Node js code

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How to debug Node.js code?

I’m looking for the best ways to debug Node.js code effectively. I know there are various methods, like using console.log statements or built-in debugging tools, but I’m not sure which approach is most efficient or how to get started with these tools.

Nov 12 in Web Development by Nidhi
• 3,760 points
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1 answer to this question.

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Debugging Node.js code can be done effectively with several built-in and external tools. Here’s a guide on how to approach it:

1. Use the console.log() Method

  • The simplest way to debug is by adding console.log() statements to inspect variables and program flow.

  • Use it to print out function arguments, state changes, or specific messages that indicate where the code execution is.

2. Built-In Debugger (node inspect) 

  • Node.js has a built-in debugger. Run your script with:

  • node inspect yourFile.js

  • This will start the debugger and pause at the first line. Use n to go to the next line and c to continue execution until the next breakpoint.

answered Nov 13 by kavya

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