Jquery检查段落是否为空

Question

我想使用Jquery检查我的段落标记是否为空.没有内容的意思.

$(function() {
    $("#popupdialog").dialog();
});

HTML

<div id="popupdialog"> 
<p></p> </div>

单独的实例.

<div id="popupdialog" title="Basic dialog"> 
<p>This is the default dialog which is useful for displaying information. The dialog window can be moved, resized and closed with the 'x' icon.</p>

如果popupdialog没有内容.我希望对话框设置为autoOpen:false.我该怎么办？

Answer 1

if ($('#popupdialog > p').is(':empty')) { 
    // we're empty. do stuff.
}