This page contains a button that calls a user-defined
function defined in the <head>
section of the page.
Click on the button to see it in action.
The HTML code for this button is:
<input type="button" value="Click here!" onClick="greetUserByName()">
The JavaScript code for the greetUserByName()
function in
the <head>
section of the page is:
<script> function greetUserByName() { var name = prompt("Please enter your name."); alert("Hello, " + name + "!"); } </script>
View the source for this page to see the function and button definitions in their full context. Depending on your browser and operating system, you may be able to view the page source from a menu option or by right-clicking or control-clicking on the page.