jquery - What is the meaning of CDATA -


gurus,

i self taught. there's lot of enlightened ones call basic know nothing about.

reading jquery tutorial, noticed tag (for lack of better word): "cdata" shown here (third line top):

<script src="http://jquery.com/src/jquery-latest.js"></script> <script>  //<![cdata[     $(document).ready(function(){ $(".article .thebody").hide(); $("#container .article ul")        .prepend("<li class='readbody'><a href='' title='read article'>read body</a></li>");  $(".actions li.readbody a").click(function(event){ $(this).parents("ul").prev(".thebody").toggle(); event.preventdefault();      });    }); //]]></script>

what meaning of cdata? there tags similar cdata?

with <![cdata[ can embed js in xml (and xhtml) documents without need replace special xml characters <, >, &, etc xml entities &lt;, &gt;, &amp; etc prevent xml syntax malformed , errors the entity name must follow '&' in entity reference. general recommendation put js code in own .js file include <script src>.

the <![cdata[ not needed in plain html documents. unless you're developing xml based view technology facelets (for jsf) or asp.net mvc, there's absolutely no need declare html xhtml. <!doctype html> suffice


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