Question

In the jquery UI drop effect,how can I find the being draged one?

$('#test').droppable({
                drop: function (e,ui) {
                    //$(this) means the drop-container
                    //How can I use the "ui" parameter find the being draged one? 
                    }
                }
            }); 

Like ui.?
thank you

Answer 1

ui.draggable is the element being dragged.

Drop (event)
This event is triggered when an accepted draggable is dropped ‘over’ (within the tolerance of) this droppable. In the callback, $(this) represents the droppable the draggable is dropped on. ui.draggable represents the draggable.

Documentation

$('#test').droppable({
    drop: function (e,ui) {
        // "ui.draggable" is the dragged element (as a jquery object)
        ui.draggable.addClass('myClass')
    }
});