Tutorials - JavaScript - Lesson 5 - The Prompt Command
This is an example of how you can attach a small amount of user
interactivity to your sites. In this way it is possible to personalise
pages for your users.
The code works by asking the user for their name, placing that
name in a variable (a variable is simply a "name" that then has
a value attached to it - in this case the users name.) The example
that you just saw is in the <head> of
the page and then uses the document.write
command to write the name into the page. You can also attach this to an
alert box:
<html>
<head>
<script language="javaScript">
var readername=prompt('enter your name', '');
</script>
</head>
<body>
<a href="#" onClick="alert('Hello '+readername+' how are
you?');>Click here to see the code at work</a>
</body>
</html>
Click
here to see the code at work
See if you can figure out what the variable is in the above example. If
not, then check out Tutorial 6 which is all
about variables.
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