reactjsHow do I create a "Hello World" application with ReactJS?

Creating a "Hello World" application with ReactJS is a great way to get familiar with the basics of React. To do this, you'll need to create a React component that will render the text "Hello World". Here is an example of how to do this:

import React from 'react';

class HelloWorld extends React.Component {
  render() {
    return (
      <h1>Hello World</h1>
    );
  }
}

export default HelloWorld;

This code creates a React component called HelloWorld that renders the text "Hello World". It does this by importing the React library and creating a HelloWorld class that extends the React.Component class. The render() method of this class is then used to return the HTML element <h1>Hello World</h1>.

Code explanation

• import React from 'react';: imports the React library
• class HelloWorld extends React.Component {...}: creates a React component called HelloWorld
• render() {...}: the render() method of the HelloWorld class is used to return the HTML element <h1>Hello World</h1>
• export default HelloWorld;: exports the HelloWorld component so that it can be used in other files

For more information about React components, please see the React documentation.

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