Question

The API of JQuery Sortable isn’t clear on how to retrieve the number of elements in a sortable list.
The reason I want the number of elements, is because I want to set the position of a widget to the end of the sortable list. I know there is an append function, but I have my own logic to manipulate the sortable list.

Does someone know how to do this?

Answer 1

This should do it:

$('#sortable li').length;

since $(foo) returns either a jQuery object or an array of jQuery objects, depending on the selector foo, you can use the .length attribute.