React Basics

React is a popular JavaScript library for building user interfaces. It allows you to create reusable UI components and efficiently update and render them when the underlying data changes.

To get started with React, you need to have a basic understanding of HTML, CSS, and JavaScript. React follows a component-based architecture, where each UI component is implemented as a JavaScript class or function.

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

1// Replace with relevant React code
2
3import React from 'react';
4
5class HelloWorld extends React.Component {
6  render() {
7    return (
8      <div>
9        <h1>Hello, World!</h1>
10        <p>Welcome to React Basics</p>
11      </div>
12    );
13  }
14}
15
16export default HelloWorld;

In this example, we define a class component called 'HelloWorld' that extends the 'React.Component' class. The 'render' method returns JSX (a syntax extension for JavaScript that resembles XML/HTML) to define the component's UI structure.

React components can have properties (also known as 'props') that are passed as inputs to the component. These props can be accessed inside the component using 'this.props'.

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

React offers a rich set of features and APIs for managing component state, handling events, and interacting with the DOM. As you explore React further, you'll learn about hooks, context, virtual DOM, and more.

Practice writing React components and experiment with different features to gain a deeper understanding of React and its capabilities.

xxxxxxxxxx

// Replace with relevant React code

​

import React from 'react';

​

class HelloWorld extends React.Component {

  render() {

    return (

      <div>

        <h1>Hello, World!</h1>

        <p>Welcome to React Basics</p>

      </div>

    );

  }

}

​

export default HelloWorld;