exercise/3.html at master · RajanTank/exercise · GitHub

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<!DOCTYPE html>
<html>
<!--
  JavaScript program to check if the last digit of the three given positive integers is the same.
-->
<head>
    Exercise no : 3
</head>
  <body>
    <script>
      'use strict';

      function checkNumber(num1,num2,num3){

          if( num1 == "" || num2 == "" || num3 == "" || isNaN(num1) || isNaN(num2) || isNaN(num3) ){
            alert('plz enter anynumber');
          }
          else {
            num1 = num1 % 10;
            num2 = num2 % 10;
            num3 = num3 % 10;

            if(num1 == num2 && num2 == num3)
            {
              alert('numbers are same.')
            }
            else{
              alert('numbers are not same');
            }

          }

      }

      let number1 = prompt('Enter first number: ');
      let number2 = prompt('Entet second number: ');
      let number3 = prompt('Enter third number');

      checkNumber(number1,number2,number3);

    </script>
  </body>

</html>