indexPathBeforeUpdate
The index path of the item before the update.
Declaration
var indexPathBeforeUpdate: IndexPath? { get }Discussion
The value of this property is nil for an action of type NSCollectionView.UpdateAction.insert.
The index path of the item before the update.
var indexPathBeforeUpdate: IndexPath? { get }The value of this property is nil for an action of type NSCollectionView.UpdateAction.insert.