JAVASCRIPT

node dotenv

require('dotenv').config();

console.log(process.env.MY_ENV_VAR);

how to use dotenv in javascript

#in you cmd type this command

npm i dotenv

#and then require it in you javascript using :
require("dotenv").config()

dotenv nodejs

// Terminal/CMD
npm i dotenv

//In .env file
SPECIAL_KEY = 0000000 //whatever the key

//In nodejs file - 2 point usage
//1 - initialisation
require('dotenv').config();
//2 - using the special key
const specialKey = process.env.SPECIAL_KEY
console.log(specialKey);

nodejs dotenv path how to set

// when yours .env is in other place then default, you can set path to it

const path = require('path')
require('dotenv').config({ path: path.resolve(__dirname, '../../.env') }); //use as many '../' as you need

node dotenv

const config = require('dotenv-config')();
 
console.log(config.test); // localhost
 
module.exports = config;

dotenv in node js

This is used to add a specific path to locate the .env file if we use like this 
.config() then this is finding .env file in our cwd - current working directory.


require('dotenv').config({ path: '/custom/path/to/.env' })

use of dotenv in express

yarn add -D dotenv
//inside file import package
require('dotenv').config()

what is dotenv in nodejs

this module is used to access environment variable in our application

how to use dotenv in javascript

dotenv file use