What is the difference between frontend and backend?

Frontend and backend are two main parts of web development, responsible for different aspects of the application's operation.

• Frontend is what the user sees and interacts with. It is the interface implemented using HTML, CSS, JavaScript, and frameworks (React, Angular, Vue). The frontend is responsible for displaying data, handling user events, and interacting with the backend.

• Backend is the server-side part that processes the application's logic, stores and manages data, ensures security, and interacts with databases and external services. The backend is implemented in languages like Java, Python, Node.js, PHP.

Example: when you visit a website, the frontend displays the page and buttons, while the backend processes requests, such as authentication or retrieving a list of products.