How to change process.env values ​​to production defaults?

Question

JavaScript

There is a node express application, I want to assign production values ​​to env. Where is the value of this variable generally stored?
I know you can specify in pakage.json:

"scripts": {
    "start": "NODE_ENV=production ..."

I also want to configure so that, for example, when launching forever app.js, the application starts with production values

Answer 1

This is the value of the environment variable. For unixes here: www.cyberciti.biz/faq/set-environment-variable-unix , for Windows via GUI.
To set the variable when launching via forever, you can add the script to package.json:
"forever": "NODE_ENV=production forever app.js".

Answer 2

To set the default, you need to execute in the console export NODE_ENV=production, this will set the variable for all child processes, or add this line to .bashrc, then it will be set for all user processes.