Select all child elements except the first

Say I have the following:

<ul>
 <li>First item</li>
 <li>Second item</li>
 <li>Third item</li>
</ul>

How would I select all the child elements after the first one using jQuery? So I can achieve something like:

<ul>
 <li>First item</li>
 <li class="something">Second item</li>
 <li class="something">Third item</li>
</ul>

You should be able to use the "not" and "first child" selectors.

$("li:not(:first-child)").addClass("something");

http://docs.jquery.com/Selectors/not

http://docs.jquery.com/Selectors/firstChild

Based on my totally unscientific analysis of the four methods here, it looks like there's not a lot of speed difference among them. I ran each on a page containing a series of unordered lists of varying length and timed them using the Firebug profiler.

$("li").slice(1).addClass("something");

Average Time: 5.322ms

$("li:gt(0)").addClass("something");

Average Time: 5.590ms

$("li:not(:first-child)").addClass("something");

Average Time: 6.084ms

$("ul li+li").addClass("something");

Average Time: 7.831ms