📄️ Environment Variables
Environment variables help us define static variables for our application. They allow us to configure our project for different deployments without changing the code inside our application. We can define environment variables for production, development, and even custom environment variables.
📄️ Document Fragment
A document fragment is a JSX element that allows you to group a list of elements together without creating a new DOM element. This is useful for improving performance and reducing the number of unnecessary DOM operations, especially when rendering long lists or dynamic content.