There are many publications out there describing how to use Xcode to build navigation applications for Apple iOS using Objective-C....
Swift
Here's short block of swift code that counts the number of days between two dates then pops an alert out...
Often there will be times while working on a View in the storyboard, when you are trying to select an element...
This is a quick way to get a number (Double in this case) from a String in Swift. Use NSNumberFormatter()...
