registeredNibsByIdentifier
The dictionary of all registered nib files for view-based table view identifiers.
Declaration
var registeredNibsByIdentifier: [NSUserInterfaceItemIdentifier : NSNib]? { get }Discussion
Each key in the dictionary is the identifier string (given by NSUserInterfaceItemIdentifier) used to register the nib file in the register(_:forIdentifier:) method. The value of each key is the corresponding NSNib object.