What is React ⚛️ and the Concept of Components

React is a JavaScript library for building user interfaces, known for its component-based architecture and declarative approach. It simplifies creating dynamic and interactive UIs by focusing on the view layer. React's key advantages include reusable components, a virtual DOM for efficient updates, and a declarative programming style. A rich ecosystem of supporting libraries further extends its capabilities. The core building blocks of React applications are components, which can be functional or class-based. Functional components, using hooks, are now preferred for their simplicity and state management. Components interact through props (data passed down) and state (internal data). Event handling is straightforward, allowing for dynamic UI updates based on user interactions. Conditional rendering and efficient list rendering are also essential features. By combining these concepts, developers can create complex yet maintainable and reusable UIs.