How to debug a nodejs application?

Question

Hi! Anybody knows how to debug a Web Server application implemented with NodeJS? Any suggestion for a tool?

Answer 1

To debug node in the browser, type the following:
Chrome://inspect

Then click on the open node dedicated server

On the command line type the following:
Node --inspect filename.js,

Answer 2

Insert one or more statement
debugger;
into your nodejs code where you want to insert breakpoint, then run cmd:
node inspect <your node.js>

on debug> prompt, type next for next statement execution, or type cont to continue execution. or type repl command for variable evaluation.

Answer 3

o.gak Nodejs run directly from server, debugging codes cannot be viewed from front-end browser Chrome devtool.

Answer 4

Calviղ Thank you for your explanation.:)

Answer 5

VSCode Will let you debug your Node code in user-friendly way

Answer 6

console.log is very useful for me, try to explore more the console methods

Answer 7

A Chrome debug tool?
Open the web page in Chrome and push `ctrl + shift + i`.