jQuery获取附加li的Index（）

Question

I have a jquery append() to a ul function that I am trying to return the index() of the new li . After that I will have the ability to drag and drop the li into a different position and I need the index of that too.

How can I accomplish this?

Answer 1

u can use index function in jquery

http://jsfiddle.net/N4SDw/

$('button').click(function(){
$('ul').append('<li>im list</li>');
 var list =  $('li:last').index();

    alert(list+1)
})

Answer 2

After you append use jquery lenght to get size of your list http://api.jquery.com/length/

Substract 1 from length to get index of your appended li

Answer 3

This works for me:

$("<li>Test</li>").appendTo($("#test")).index();

JSFiddle: http://jsfiddle.net/3uqJT/