TypesVar.html

<html>
<head>
    <body>
    <script type="text/javascript">
        var name= "krishna";
        function year(a) {
            document.write(name+ " is in " +a+ " year ");
        }
        year(4);
        document.write(name); 
        // here we can clearly see that name is global variable because it has not declared in a function so it has  global scope
        
        function stud(){
            var student =" chaitanya";
            document.write(student);
        }
        stud();
        // Here we can clearly see that chaitanya was printed only once because student is local variable it does not has global scope. So not able to use outside of function
          document.write(student);
        </script>
    </body>
    </head>
</html>