You learned the core building blocks of React and how components work together to create dynamic user interfaces.

You explored how to pass data using props, allowing parent components to control what child components display. This introduced the idea of one-way data flow, which is central to how React applications are structured.

You learned how to use conditional rendering to show or hide UI elements based on conditions, using patterns like the logical AND (&&) operator and the ternary (? ... : ...) operator.

You also learned how to render lists of data using the map() method, a common pattern when working with data from a backend. Along the way, you discovered why the key prop is essential for helping React efficiently update lists.

Together, these concepts form the foundation of almost every React application. Understanding them will make it much easier to build reusable components, manage UI logic, and reason about how data flows through your app.

Next, you'll move beyond static data and learn how React handles state and side effects, allowing your applications to respond to user interaction and external data over time.