reactjsHow do I build a project using ReactJS?

To build a project using ReactJS, you'll need to install the React library and create a index.html file.

Include the following code in the index.html file:

<div id="root"></div>
<script src="https://unpkg.com/react@16/umd/react.development.js"></script>
<script src="https://unpkg.com/react-dom@16/umd/react-dom.development.js"></script>
<script src="index.js"></script>

This will include the necessary React and ReactDOM libraries and the index.js script.

In the index.js file, you can create a React component with the following code:

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

ReactDOM.render(<App />, document.getElementById("root"));

This will render the <h1>Hello World!</h1> element inside the <div id="root"></div> element in the index.html file.

For more information on building projects with ReactJS, check out the React documentation.

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