Function1js.html

<html>
   <head>  
      <script type = "text/javascript">
         function concatenate(first, last) {
            var full;
            full = first + last;
            return full;
         }
         function secondFunction() {
            var result;
            result = concatenate('Ram', 'Prasad');
            document.write (result);
         }
      </script>      
   </head>
   
   <body>
      <script>
            document.write(concatenate("hi",3))
            secondFunction()
      </script> 
  </body>
</html>