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GamerBhai02

Reverse Number

GamerBhai02
Dec 19th, 2024
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  1. <!DOCTYPE html>
  2. <html>
  3. <head>
  4. <title>Reverse Number</title>
  5. </head>
  6. <body>
  7. <h1>Reverse a Number</h1>
  8. <p>Enter a number:</p>
  9. <input type="number" id="number" />
  10. <button onclick="reverseNumber()">Reverse</button>
  11. <p id="result"></p>
  12. <script>
  13. function reverseNumber() {
  14.   var number = document.getElementById("number").value;
  15.   var reversedNumber = "";
  16.   if (number === "" || isNaN(number)){
  17.     alert("Invalid input. Please enter a number.");
  18.     return;
  19.   }
  20.   for (var i = number.length - 1; i >= 0; i--) {
  21.     reversedNumber += number[i];
  22.   }
  23.   document.getElementById("result").innerHTML =
  24.     "Reversed number: " + reversedNumber;
  25. }
  26. </script>
  27. </body>
  28. </html>
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