Having developed web apps since 1996 I often find new ways of doing old things. So I was wondering what is the proper JavaScript tag to use on new development?

Currently I use something like this for XHTML

<script type="text/javascript">
/* <![CDATA[ */

/* ]]> */
</script> 

I have read somewhere that this may cause problem with older browsers.

But use to use the following:

<script language="javascript">

<script type="text/javascript">

<script language="javascript" type="text/javascript">

What is the prefered method and why?

Having developed web apps since 1996 I often find new ways of doing old things. So I was wondering what is the proper JavaScript tag to use on new development?

Currently I use something like this for XHTML

<script type="text/javascript">
/* <![CDATA[ */

/* ]]> */
</script> 

I have read somewhere that this may cause problem with older browsers.

But use to use the following:

<script language="javascript">

<script type="text/javascript">

<script language="javascript" type="text/javascript">

What is the prefered method and why?

• javascript
• html

• I always wonder what CDATA is actually for? – Layke Commented Feb 21, 2010 at 19:52
• 1 The CDATA is to escape xml characters like < and > in the JavaScript. It's needed for xhtml if it is processed by a strict xml parser. – David Hogue Commented Feb 21, 2010 at 19:58

1 Answer 1

Checkout what Crockford has to say. In summary:

<script src="url"></script>