iOS: Delete ALL Core Data Swift

Question

I am a little confused as to how to delete all core data in swift. I have created a button with an IBAction linked. On the click of the button I have the follow

Answer 1

An alternative can be to completely remove and recreate persistent store (iOS 10+, swift 3).

let urls = FileManager.default.urls(for: .libraryDirectory, in: .userDomainMask);
    var dbUrl = urls[urls.count-1];
    dbUrl = dbUrl.appendingPathComponent("Application Support/nameOfYourCoredataFile.sqlite")
    do {
        try persistentContainer.persistentStoreCoordinator.destroyPersistentStore(at: dbUrl, ofType: NSSQLiteStoreType, options: nil);
    } catch {
        print(error);
    }
    do {
        try persistentContainer.persistentStoreCoordinator.addPersistentStore(ofType: NSSQLiteStoreType, configurationName: nil, at: dbUrl, options: nil);
    } catch {
        print(error);
    }