Using jQuery, find the links that contain a certain string and add a class

Question

I have the following HTML structure:

<div><a href="link1">blah</a></div>
<div><a href="link2">blah</a></div>
<div><a href="link3.swf">blah</a></div>
<div><a href="link4">blah</a></div>
<div><a href="link5.swf">blah</a></div>
<div><a href="link6.swf">blah</a></div>

Using jQuery I want to retrieve the links that contain the .swf extension and add a class to their parent div element. Here is my code, which is not working:

$('a[href:contains(".swf")]').parent().addClass=('filmtrigger')

Can you help me fix this?

Answer 1

$('a[href$="swf"]').parent().addClass('filmtrigger');

http://docs.jquery.com/Selectors