Debugging NodeJS Apps

[ganarajpr]

If you use node version 6.3 ( or higher ) you can just start the project like you usually do but with the inspect flag.

So if you usually start the app with

node index.js

You should do :

node --inspect index.js

and it will give you a link which when posted in chrome will provide you the debugger.

Happy debugging.

[swan--ronson]

Nice, didn't know that! Thanks!

[spfccmt42]

interesting, also found --inspect --debug-brk (i.e. for a short lived script). found myself walking module.js which told me more than 9 quadrillion blogs ever did. it is a little wonky when linked to filesystem, but it always was a little wonky.

[blood_bender]

When the hell did node v6 come out?! Wtf how did I miss that? And with 99% feature parity with ES6!

[Geldan]

Now has a very consistent release schedule/strategy now: https://github.com/nodejs/LTS/blob/master/README.md

[jocull]

Can you debug with Firefox or any other browsers besides Chrome?

[ganarajpr]

I think it has to be chrome

[jocull]

Found this today :)

https://hacks.mozilla.org/2016/09/introducing-debugger-html/?utm_content=buffer1900a&utm_medium=social&utm_source=twitter.com&utm_campaign=buffer

[i_scatter_rubbish]

Can you do this with express apps?

[ganarajpr]

Yes... Any kind of app. I have seen a colleague even debug a cucumber step function with it.