Multiple Managed Object Contexts with Core Data TutorialThis is an abridged from our book Core Data by Tutorials, which has been completely updated for Swift 4 and iOS 11. This tutorial is presented as part of our iOS 11 Launch Party — enjoy! A managed object context is an in-memory scratchpad for working with your managed objects. Most apps need just a single managed object context. The default configuration in most Core Data apps is a single managed
