Calculate factorial of 5

        
<!doctype html>
<html>
   <head>
       <title>Calculate factorial of 5</TITLE>
   </HEAD>
   <body>
<h1> Calculate factorial of 5 </h1>
       <form name="f1">
           <input type="submit" value="Factorial of 5" onClick="display()">
       </form>
    </body>
    <script language="Javascript">
          function display()
          { 
              
              var i,fact=1;
              
              for(i=1;i<=5;i++)
              {
                  fact=fact*i;
              }
              document.writeln("Factorial of 5 ="+fact);
          }
     </script>
</html>
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