I need to append an <li>
element to multiple <ul>
using a for-loop
in jQuery.
Code Snippet:
JQuery:
var lists = $('ul.menu');
for(var i=0; i<lists.length; i++){
var lnk = "<li>All</li>";
lnk = $('<div />').html(lnk).text();
lists[i].prepend(lnk);
}
HTML:
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<ul class="menu">
<li>Graphics</li>
<li>Videos</li>
<li>Programming</li>
</ul>
<hr>
<ul class="menu">
<li>Our Story</li>
<li>About Us</li>
</ul>
As per code <li>
inserts as the proper text, but is been formatted as plain text instead of an <li>
.
What am I doing wrong? How to correct my mistakes?
A slightly more jQuery-ish alternative to TJ Crowder's solution ...
$('ul.menu').each(function() { $(this).prepend("<li>All</li>"); })
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <ul class="menu"> <li>Graphics</li> <li>Videos</li> <li>Programming</li> </ul> <hr> <ul class="menu"> <li>Our Story</li> <li>About Us</li> </ul>
You're calling the raw DOM prepend
(which only exists on modern browsers), because lists[i]
accesses the raw ul
element. You're also just taking the text of what you want to prepend, rather than including any li
markup. You probably want to:
Call jQuery's prepend
, and
Include the li
in what you're prepending
Example:
var lists = $('ul.menu'); for(var i=0; i<lists.length; i++){ var lnk = "<li>All</li>"; lists.eq(i).prepend(lnk); }
/* No CSS */
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <ul class="menu"> <li>Graphics</li> <li>Videos</li> <li>Programming</li> </ul> <hr> <ul class="menu"> <li>Our Story</li> <li>About Us</li> </ul>
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.