3. Alternative Methods for Managing Environment Variables in React
   Purpose of an . env file:Store sensitive information: Avoid exposing secrets like API keys, database credentials, and other sensitive data directly in your code
4. Alternative Methods for Reading Environment Variables in Node.js
   What are Environment Variables?Environment variables are key-value pairs that store information about the environment in which an application is running
5. Alternative Methods for Setting Environment Variables in Node.js
   What are Environment Variables?Environment variables are key-value pairs that store configuration information for your application