What are guidelines for numbering the build number? Should it just start with 0 and increment by one each time I archive a project for distribution?

How do I sort an array of dictionary objects based on the value of the dictionary? I understand I should use the sorted method of the array, but I don't understand the notation that uses $0.1 and $0.0. Where is the documentation on that?

I used the Date class such as "currentTime = Date()", but I get a date that is off by 5 hours exactly. How do I get the current time? Is there a time zone setting I have to set?

How do I put an xib file in my project? There is no option for xib in File->New->File.

Why would I get an error when I'm uploading the app using the Xcode organizer that says the following?ERROR ITMS-90167: "No .app bundles found in the package"

I'm trying to enable my app to receive a notification each time the event store changes.The documentation for EKEventStore at https://developer.apple.com/reference/eventkit/ekeventstore shows the following:static let EKEventStoreChanged: NSNotification.NameWhat does that mean? How do I use that information?

Sometimes it takes a long time for iCloud to begin syncing. Is there code I can use to cause iCloud to begin syncing when I want it to?

I am preparing to submit an app for the very first time.Why is the default version number 1.0? Doesn't that 0 get truncated? Would it be better if I changed the version number to 1? Would it make a difference?