How to Write JavaScript Function Head Of the HTML Document In JavaScript

Delpin Susai Raj

10y766Code

In this code is how to write java script function from head of the html document.

<html>

<head>
    <script type="text/JavaScript">
        <!--
function popup()
{
alert("Hello World")
}
//-->
    </script>
</head>

<body> <input type="button" onclick="popup()" value="Click"> </body>

</html>