我如何克隆和删除jQuery的最后一个孩子？

Question

I want to clone and remove ul last-child but following code is not working. Someone tell me how it will be work?

$(document).ready(function () {
    tmp1 = '';
    tmp = '<ul><li><h4>Menu 5</h4></li></ul><ul><li><h4>Menu 6</h4></li></ul><ul><li><h4>Menu 7</h4></li></ul>';
    $(tmp).children('ul:last-child').clone().appendTo(tmp1)
    $(tmp).children('ul:last').remove();
    $('div').append(tmp);
});

Answer 1

I think you are doing it wrong: tmp is a string.

You have to do this: http://jsfiddle.net/Lu6jA/

$(document).ready(function () {
   tmp1 = '';
   tmp = '<ul><li><h4>Menu 5</h4></li></ul><ul><li><h4>Menu 6</h4></li></ul><ul><li><h4>Menu 7</h4></li></ul>';
   var lastUl = tmp.lastIndexOf("<ul>");
   var yourclone = tmp.substring(lastUl);
   var newtmp = tmp.replace(yourclone,"");
   $('div').append(newtmp);
   alert(yourclone);  // This is for your reference
});

Explantion: First find the last UL from the string. yourclone contains your last ul as a string. Now, replace last ul from the tmp string with nothing, so basically means remove it and place the result in newtmp . the append it to div .