React Components

React components are the building blocks of a React application. They are modular, reusable pieces of code that split the user interface into independent, self-contained parts.

There are two main types of components in React:

1. Class Components: These are created by extending the React.Component class and defining a render method that returns JSX.

2. Functional Components: These are JavaScript functions that return JSX. They are simpler and easier to understand compared to class components.

Here's an example of a functional component that renders a 'Hello, World!' message:

1// Replace with relevant React code
2
3import React from 'react';
4
5const Greeting = () => {
6  return (
7    <div>
8      <h1>Hello, World!</h1>
9      <p>Welcome to React Components</p>
10    </div>
11  );
12};
13
14export default Greeting;

In this example, we define a functional component called Greeting that returns JSX to define the component's UI structure.

Components can also accept inputs, called props, which can be passed as attributes when using the component. Props allow components to be more dynamic and reusable.

To use the Greeting component in your application, you'll need to import and include it in your main application file.

React components follow a unidirectional data flow, where data is passed from parent components to child components via props. This makes it easier to manage and update the application state.

Practice creating components and using props to build reusable UI elements in your React applications.

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// Example of a functional component

​

import React from 'react';

​

const Greeting = () => {

  return (

    <div>

      <h1>Hello, World!</h1>

      <p>Welcome to React Components</p>

    </div>

  );

};

​

export default Greeting;