Ep. 33— That little feature called “Undo”
A thoughtful design and implementation of an Undo/Redo feature is really valuable to your users. Don’t miss this opportunity to surprise and delight! Here are a few pointers that you may find useful: On iOS/Mac, definitely take advantage of the Foundation UndoManager API to keep track of things. It makes your logic easier to follow and the resulting implementation more robust. You can find a good sample here.