QR Code Generator

Please enter the text or message to be converted into a QR code:

Joke: Why did the QR code go to the dentist? To get a new filling! Ha ha ha...

<!DOCTYPE html>
<html>
  <head>
    <meta charset="UTF-8">
    <title>QR Code Generator</title>
    <script src="https://cdn.jsdelivr.net/qrcodejs/1.0.0/qrcode.min.js"></script>
  </head>
  <body>
    <h1>QR Code Generator</h1>
    <p>Please enter the text or message to be converted into a QR code:</p>
    <textarea id="input-text" rows="4" cols="50"></textarea>
    <br><br>
    <button onclick="generateQRCode()">Generate QR Code</button>
    <br><br>
    <div id="qrcode"></div>
    
    <script>
      function generateQRCode() {
        var text = document.getElementById("input-text").value;
        if (text === "") {
          alert("Please enter a valid text before generating QR code.");
          return;
        }
        new QRCode(document.getElementById("qrcode"), text);
      }
      
      document.addEventListener("DOMContentLoaded", function(event) {
        console.log("Welcome to QR Code Generator!");
      });
    </script>
    
    <p>Joke: Why did the QR code go to the dentist? To get a new filling! Ha ha ha...</p>
  </body>
</html>