Examples of React Components for Web Design Beginners

📚 Quick Study Guide

• ⚛️ React components are reusable building blocks for user interfaces. They can be functional or class-based.
• 📦 Functional components are simpler and often preferred for basic UI elements. They are JavaScript functions that return JSX.
• 🧱 Class components are more complex and used for managing state and lifecycle methods. They extend React.Component.
• 🖋️ JSX (JavaScript XML) allows you to write HTML-like syntax in your JavaScript code. It gets transformed into JavaScript function calls.
• 🔄 Props (properties) are used to pass data from parent components to child components. They are read-only from the child component's perspective.
• useState is a React Hook that allows functional components to manage state.
• useEffect is a React Hook that allows functional components to perform side effects.

🧪 Practice Quiz

1. Which of the following is NOT a valid way to define a React component?
   1. Functional Component
   2. Class Component
   3. Arrow Component
   4. String Component
2. What is JSX?
   1. A JavaScript extension for XML
   2. A syntax that allows you to write HTML-like code in JavaScript
   3. A new programming language
   4. A library for creating user interfaces
3. What are 'props' in React?
   1. A way to define component state
   2. A way to pass data from child to parent components
   3. A way to pass data from parent to child components
   4. A way to style React components
4. Which hook is used for managing state in functional components?
   1. useState
   2. useEffect
   3. useContext
   4. useReducer
5. Which lifecycle method is called after a component is rendered for the first time?
   1. componentWillMount
   2. componentDidMount
   3. componentWillUpdate
   4. componentDidUpdate
6. What is the primary purpose of a React component?
   1. To manage the application's database
   2. To define reusable UI elements
   3. To handle server-side logic
   4. To create animations
7. Which of the following is a benefit of using React components?
   1. Increased code complexity
   2. Improved code reusability
   3. Decreased performance
   4. Limited functionality