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

Samar Khanna
Samar Khanna
1,757 Points
Posted by Samar Khanna
Samar Khanna
1,757 Points

Why aren't we unwrapping the array?

In this code:

''' Swift

artists += playlistDictionary["artists"] as! [String]

'''

We are not unwrapping [String]. But what happens if we pass in a different spelling of artists by mistake?

Kevin Gonzales
Kevin Gonzales
4,638 Points
Kevin Gonzales
Kevin Gonzales
4,638 Points

I thought the same thing, but If you look at the declaration of artist we never made it an optional array. That is why we are not unwrapping it(I think I could be wrong but that was my explanation).