USING FUNCTION WITH ARGUMENTS
Run 
<html>
    <head>
        <title>Function with Parameters</title>
    </head>
    <body>
        <h1>Passing arguments to the function</h1>
        <script language="JavaScript">
            function sum(a,b,c)
            {
                let total=a+b+c;
                document.write("the sum is ="+total);
            }
            document.write("the sum is calculated by passing arguments to function<BR/>");
            sum(2,7,8);
            
        </script>
    </body>
</html>