React is a JavaScript library for building user interfaces. At its core, React relies on components and props to manage structure and data flow. Let's dive into these fundamental concepts!

What is a Component?

A component is a reusable piece of code that encapsulates HTML, CSS, and JavaScript. Think of it as a building block for your app. 🏗️

  • Functional Components: Defined using function or arrow functions.
  • Class Components: Use ES6 classes (less common in modern React).
  • Component Lifecycle: Learn more about React State and Lifecycle for advanced use.

📌 Example: A button component can be reused across your application with different props.

Props: Passing Data

Props (short for properties) are inputs passed to components. They allow customization and communication between components. 📡

  • Immutable: Props should not be modified inside the component.
  • Default Props: Set default values for props using defaultProps.
  • Type Checking: Use TypeScript or prop-types for validation.

Best Practices

  • Always use props to pass data, not through state.
  • Keep components focused on a single responsibility.
  • Use children prop for nested content. 🌱
React_Component

For a deeper understanding of React's architecture, check out our official documentation. 🚀