JavaScript Program to check whether given number is Armstrong number or not

JavaScript Program to check whether given number is Armstrong number or not

Write a JavaScript program to check whether given number is Armstrong number or not.



Source Code
<html>
<head>
	<title>Find number is Armstrong no. or not</title>
</head>
<body>
<script>

	var n = parseInt(prompt("Enter number to check for Armstrong no.", "0"));
  var res = 0;
  
  for(i = n; i > 0; i = parseInt(i/10))
  {
    r = i % 10;
    res = res + r*r*r;
  }
  if(n == res)
  {
    document.write("Number is an Armstrong no.");
  }
  else
  {
    document.write("Number is not an Armstrong no.");
  }
</script>
</body>
</html>
Output