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reactjsHow do I create a ReactJS tutorial?

Start by creating a project folder and initializing a package.json file. This can be done by running the command npm init in the project folder.
Install the necessary React packages by running the command npm install --save react react-dom.
Create an index.html file and add the following code to it:

<!DOCTYPE html>
<html>
  <head>
    <title>React Tutorial</title>
  </head>
  <body>
    <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>
  </body>
</html>

Create an index.js file and add the following code to it:

const rootElement = document.getElementById("root");
ReactDOM.render(<h1>Hello, world!</h1>, rootElement);

Start a development server by running the command npx serve in the project folder.
Open a browser and go to the address http://localhost:5000. You should see the text "Hello, world!" on the page.
Now you can start adding more React code to the index.js file and see the changes in the browser.

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