问题描述
我知道你不应该将div放在无序列表中,但我们可以说我们有下面提到的标记。使用jQuery我想定位每个第3个列表项:li:nth-child(3n)。看起来jQuery也将div作为列表项计数,即使我们指定li:eq(3n)。我们如何检测每个第3个列表项,而不管父元素中还有什么。什么是甚至写li:eq(3n)什么时候忽略'li'?
I know you're not supposed to put divs inside an unordered list, but lets say we have the markup noted below. with jQuery I would like to target every 3rd list-item: li:nth-child(3n). Looks like jQuery counts the div inside as a list-item as well, even though we specify li:eq(3n). How can we detect every 3rd list-item regardless of what else is inside the parent element. what's the point of even writing li:eq(3n) when 'li' is ignored?
html:
<ul class="hello">
<div class="someDiv">a</div>
<li>one</li>
<li>two</li>
<li>three</li>
<div class="divider">b</div>
<li>one</li>
<li>two</li>
<li>three</li>
</ul>
jQuery:
$("ul.hello li:nth-child(3n)").css('color','red');
推荐答案
使用 nth-of-type(3n)
像这样:
$("ul.hello li:nth-of-type(3n)").css('color','red');
例如nth-of-type(3n + 2) - 3代表一个周期大小,n是一个计数器,2表示何时开始
for example nth-of-type(3n+2) - 3 represents a cycle size, n is a counter, and 2 are when is beginning
DEMO:
DEMO : http://jsfiddle.net/N565K/2/
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