jQuery Prepend Open Tag附加结束标记

Question

Firstly, I am familiar with . wrapAll() and that is not what I need. I have some markup that I am not able to change and I need to wrap everything in a <li> .

Here is what I am trying to do:

 $('nav[role="breadcrumb"] ul a').wrap('<li></li>'); $('nav[role="breadcrumb"] ul li:last').after('<li>'); $('nav[role="breadcrumb"] ul').append('</li>'); 

 <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script> <nav role="breadcrumb"> <ul class="clearfix"> <a href="http://eggaday.armystage.com/">Home</a> <a href="http://eggaday.armystage.com/health-care-professionals/">Health Care Professionals</a> Healthy Choices Cholesterol Kits </ul> </nav> 

The problem is that jQuery closes each of these <li> tags. Here is the original markup:

 <nav role="breadcrumb"> <ul class="clearfix"> <a href="http://eggaday.armystage.com/">Home</a> <a href="http://eggaday.armystage.com/health-care-professionals/">Health Care Professionals</a> Healthy Choices Cholesterol Kits </ul> </nav> 

As you can see, I have some loose text at the bottom of this <ul> and I am trying to get it wrapped in an <li> .

Answer 1

.contents() will get all the children, including the text nodes

$('nav[role="breadcrumb"] ul').contents().filter(function() {
   return $.trim($(this).text())!=="";
}).wrap('<li/>');

EDIT: Added the filter method to get rid of the whitespace text nodes

Answer 2

jQuery only works with complete elements, you can't append just a closing or opening tag.

If the ul doesn't have any other list items, you could simply use wrapInner

$('nav[role="breadcrumb"] ul').wrapInner("<li />");

If it does contain LI's, the easiest way would be to detach them, wrap inner, then append them.

var $lis = $('nav[role="breadcrumb"] ul > li').detach();
$('nav[role="breadcrumb"] ul').wrapInner("<li />").prepend($lis);

Answer 3

Try creating your <li> first and then append your selector to it:

var $li = $('<li>').append('nav[role="breadcrumb"] ul a');

Then use $li to replace or append anywhere you like.