I don't know all Swift mechanics, and how it handles variables.I always preferred to declare variables before entering a for or while loop, not matter the language, rather than declaring them inside the loop over and over.
I have a dictionary like thisNow I am storing all the dictionary value in array like thisAnd by the use of Array.first and Array.last method I will get the values of first element and last element of my array.
I have an iOS app with UITabBarController on a master screen, navigating to a detail screen hiding the UITabBarController with setting hidesBottomBarWhenPushed = true.
I would like to have a variable, which can have multiple types (only ones, I defined), like:This variable should be able to hold only values of type Int and String.
iOS 11, Swift 4.2, Xcode 10Looking at SO and indeed googling all seem to suggest this should work, but it doesn't.
I have noticed a few people in the industry will use the self keyword even when not explicitly required (i.e. outside of closures).
After merging master to my working branch I got compiler error on the line, which wasn't be changed. The error looks like
Does this always print in the order of 1 5 2 4 3? I feel the answer is no, but I cannot explain it and hope someone could clarify my understanding. Thank you!
I am trapped in a Calendar/TimeZone/DateComponents/Date hell and my mind is spinning.I am creating a diary app and I want it to work worldwide (with a iso8601 calendar).
I've spent the better part of a workday trying to solve this.BackgroundI have a simple core data model, with essentially books and reading sessions. The books have covers (images) that are stored as binary data with "Allows External Storage".