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iOS Build a Playlist Browser with Swift Building the Music Library and Playlist Models Struct Initialization

Optional unwrapping not working

When I run this line in a playground: title = playlistDictonary["title"] as String!

it returns: {Some "Runner's Rampage"}

To get the actual value, I need to unwrap the optional again on another line. What is the point of putting a "!" after String in the first line if it doesn't unwrap the optional?

1 Answer

In my opinion it is pointless... So either define none optional properties or set them with optionals... Swift has changed syntax in this case, but I would set the title property with the following, which will handle cases where the data returned is NOT a string, without crashing...

title = playlistDictonary["title"] as? String