jQuery - 检查子 div 是否可见
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jQuery - Check if child div is visible
提问by kel
I'm trying to see if the the child div of an li is visible and if so apply a class to the li. This is what I got but it's not working.
我正在尝试查看 li 的子 div 是否可见,如果是,则将类应用于 li。这是我得到的,但它不起作用。
if(jQuery('#menu li').children('div').css('display') != 'none') {
jQuery('li', this).addClass('dropHover');
}
回答by gdoron is supporting Monica
if (jQuery('#menu li > div').is(':visible')){
//...
jQuery('li', this).addClass('dropHover');
}
I don't know what is the DOM structure or to what this
refers to, but this might do the trick as well:
我不知道什么是 DOM 结构或this
指的是什么,但这也可以解决问题:
jQuery('#menu li:has(div:visible)').addClass('dropHover');
? ?
It adds the class "dropHover" to all <li>
elements that have a visible <div>
and they need to be children of an element with the menu id.
? ? 它将类“dropHover”添加到所有<li>
具有可见元素的元素,<div>
并且它们需要是具有菜单 ID 的元素的子元素。