What is the correct environment variable to access the global folder?

Question

Node.js

I'm trying to connect to the root file so that I don't specify an explicit path each time.
Please tell me what I need to do. Maybe change the environment variable?
This method does not help:
1)set NODE_PATH=. node server.js
2) I found this method on the net, it does not help either.
set NODE_PATH="." && nodes server.js

Answer 1

https://gist.github.com/branneman/8048520