Faster way to get new index onEnd/onUpdate

[dandv]

The solution on SO is clever, but its complexity is O(n*3). If Sortable maintains this state internally already, would it be possible to pass an extra parameter to onAdd onEnd, onUpdate and OnSort, that specifies the position of the displaced element, i.e. where the dragged element is being dropped?

This parameter would be passed after evt:

function onUpdate = function (event, newPos) { ... }

[RubaXa]

If you know how to do it differently, offer your solution.
But, you need to pass through the event object:

• evt.item
• evt.oldIndex
• evt.newIndex