React Js Generate Random Number

<!DOCTYPE html>
<html>
  <head>
    <meta charset="UTF-8" />
    <script src="https://cdnjs.cloudflare.com/ajax/libs/react/17.0.2/umd/react.production.min.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/react-dom/17.0.2/umd/react-dom.production.min.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/babel-standalone/6.26.0/babel.min.js"></script>
  </head>
  <body>
    <div id="app"></div>
    <script type="text/babel">
      // Add the import statement for useState hook
      const { useState } = React;

// Define the App component
      const App = () => {
       const [generatedNumbers, setGeneratedNumbers] = useState([]);

const generateRandomNumber = () => {
    const maxNumber = 100;
    const minNumber = 1;
    const randomNumber = Math.floor(Math.random() * (maxNumber - minNumber + 1)) + minNumber;

// Check if the generated number already exists in the state
    if (generatedNumbers.includes(randomNumber)) {
      // If it exists, generate a new number recursively
      return generateRandomNumber();
    }

// If the number is unique, add it to the state
    setGeneratedNumbers([...generatedNumbers, randomNumber]);
  };

return (
    <div className='container'>
      <h3>React Js Generate Random Number betwwen 1-100 without Repetation</h3>
      <button onClick={generateRandomNumber}>Generate Random Number</button>
      {/* Reverse the array to show the latest number first */}
      {generatedNumbers.slice().reverse().map((number, index) => (
        <p key={index}>{number}</p>
      ))}
    </div>
  );
      };

ReactDOM.render(<App />, document.getElementById("app"));
    </script>
    <style>
      body {
        margin: 0;
      }
      .container {
        max-width: 600px;
        margin: 0 auto;
        padding: 20px;
        font-family: Arial, sans-serif;
        box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
        position: relative;
      }

/* Styles for the button */
      .container button {
        padding: 10px 20px;
        font-size: 16px;
        background-color: #4caf50;
        color: #fff;
        border: none;
        border-radius: 4px;
        cursor: pointer;
        transition: background-color 0.3s;
      }

.container button:hover {
        background-color: #45a049;
      }

/* Styles for the generated number */
      .container p {
        margin-top: 20px;
        font-size: 18px;
        color: #333;
      }
    </style>
  </body>
</html>

 
<!DOCTYPE html>
<html>
  <head>
    <meta charset="UTF-8" />
    <script src="https://cdnjs.cloudflare.com/ajax/libs/react/17.0.2/umd/react.production.min.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/react-dom/17.0.2/umd/react-dom.production.min.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/babel-standalone/6.26.0/babel.min.js"></script>
  </head>
  <body>
    <div id="app"></div>
    <script type="text/babel">
      // Add the import statement for useState hook
      const { useState } = React;
​
      // Define the App component
      const App = () => {
       const [generatedNumbers, setGeneratedNumbers] = useState([]);
​
  const generateRandomNumber = () => {
    const maxNumber = 100;
    const minNumber = 1;
    const randomNumber = Math.floor(Math.random() * (maxNumber - minNumber + 1)) + minNumber;
​
    // Check if the generated number already exists in the state
    if (generatedNumbers.includes(randomNumber)) {
      // If it exists, generate a new number recursively
      return generateRandomNumber();
    }
​
    // If the number is unique, add it to the state
    setGeneratedNumbers([...generatedNumbers, randomNumber]);
  };
​
  return (
    <div className='container'>
      <h3>React Js Generate Random Number betwwen 1-100 without Repetation</h3>
      <button onClick={generateRandomNumber}>Generate Random Number</button>
      {/* Reverse the array to show the latest number first */}
      {generatedNumbers.slice().reverse().map((number, index) => (
        <p key={index}>{number}</p>
      ))}
    </div>
  );
      };
​
      ReactDOM.render(<App />, document.getElementById("app"));
    </script>
    <style>
      body {
        margin: 0;
      }
      .container {
        max-width: 600px;
        margin: 0 auto;
        padding: 20px;
        font-family: Arial, sans-serif;
        box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
        position: relative;
      }
​
      /* Styles for the button */
      .container button {
        padding: 10px 20px;
        font-size: 16px;
        background-color: #4caf50;
        color: #fff;
        border: none;
        border-radius: 4px;
        cursor: pointer;
        transition: background-color 0.3s;
      }
​
      .container button:hover {
        background-color: #45a049;
      }
​
      /* Styles for the generated number */
      .container p {
        margin-top: 20px;
        font-size: 18px;
        color: #333;
      }
    </style>
  </body>
</html>
​