JavaScript Program to Demonstrate Intrinsic Functions

JavaScript Program to Demonstrate Intrinsic Functions

Write a JavaScript program to demonstrate intrinsic functions.



Source Code
<html>
<head>
    <title>Demonstrate use of intrinsic functions</title>
    <script>
        function call()
        {
            with(document.forms.contact)
            {
                email.readonly=false
                email.value="f.l@gmail.com"
            }
        }
    </script>
</head>
<body>
<form name="contact" method="post">
    First Name<input type="text" name="fname" onchange="call()"/><br/>
    Last Name<input type="text" name="lname" onchange="call()"/></br/>
    Email ID<input type="text" name="email" readonly=true/></br/>
    <input type="submit" value="Submit"/>
    <input type="reset" value="Reset"/>
</form>
</body>
</html>
Output