JAVASCRIPT

npm dotenv

//In CMD
// npm i dotenv

//in JS file 
const env = require('dotenv');

const app = express();
env.config({
    path: './config/.env'
});

//use 
const PORT = process.env.PORT;

npm dotenv

npm install dotenv
npx nodemon -r dotenv/config server.js

import npm dotenv package

require('dotenv').config()
console.log(process.env.PATH)