how to install dotenv as dependency code example

Example 1: how to install dotenv

# with npm 
npm install dotenv
 
# or with Yarn 
yarn add dotenv

Example 2: how to install dotenv

const db = require('db')db.connect({  host: process.env.DB_HOST,  username: process.env.DB_USER,  password: process.env.DB_PASS})