Revisiting Strings and Numbers

Let's quickly revisit strings and numbers with an example of a very simple JavaScript calculator! In this example, you'll not only look at a way to use operators but you will also find out how you can change string digits to numbers through a process called type conversion.

The JavaScript Calculator

1.
Start off with the bare HTML template: 
<html>
<head>
<title>A Simple Page</title>
<script language="JavaScript">
<!-- Cloaking device on!

// Cloaking device off -->
</script>
</head>
<body>

</body>
</html>
2.
Declare the variables you will use here. You should have two variables for each of the numbers the user ...

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