Persistence Controller Example | SwiftyLion
import CoreData struct PersistenceController { static let shared = PersistenceController() static var preview: PersistenceController = { let result = PersistenceController(inMemory: true) let viewContext = result.container.viewContext for _ in 0..<10 { let newItem = Item(context: viewContext) newItem.timestamp = Date() } do { try viewContext.save() } catch…