JavaScript – Basic Structure
What is JavaScript?
JavaScript (JS) is an interpreted computer programming language. As part of web browsers, implementations allow client-side scripts to interact with the user.
JavaScript was born in 1995, and it was developed by Netscape Communications Corporation.
See Wikipedia for further information at: http://en.wikipedia.org/wiki/JavaScript
A basic JavaScript Example:
<!DOCTYPE html>
<html>
<head>
<title>Title</title>
<style type="text/css">
... CSS code ...
</style>
<script type="text/javascript" src="esempio.js"></script>
<script language="javascript">
/* This is a comment
in 2 or more lines */
// This is a siongle line comment
// ... JavaScript code ...
document.write("JavaScript Rules! YEAH!");
</script>
<noscript>
Your browser does not support JavaScript!
<meta HTTP-EQUIV="REFRESH" content="0; url=http://www.yourdomain.com/index.html">
</noscript>
</head>
<body>
... this is the web page content ...
</body>
</html>
How to load an external file
<script type="text/javascript" src="esempio.js"></script>
How to write code inside html5 page
<script language="javascript">
/* This is a comment
in 2 or more lines */
// This is a siongle line comment
// ... JavaScript code ...
document.write("JavaScript Rules! YEAH!");
</script>
If JavaScript is not enable:
<noscript> Your browser does not support JavaScript! </noscript>
How to redirect if JavaScript is not enabled:
<noscript> Your browser does not support JavaScript! <meta HTTP-EQUIV="REFRESH" content="0; url=http://www.yourdomain.com/index.html"> </noscript>
