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iOS Enumerations and Optionals in Swift Introduction to Optionals Nil Values in Collections

John Wilcox
John Wilcox
4,233 Points
Posted by John Wilcox
John Wilcox
4,233 Points

What on earth does this mean??

'cannot subscript a value of type '[String]' with an index of type '

Honestly. I can't figure out what is going on. Can someone please advise? I did my optional bindings and am trying to access the Actors array. Ugh.

optionals.swift 
let movieDictionary = ["Spectre": ["cast": ["Daniel Craig", "Christoph Waltz", "LÊa Seydoux", "Ralph Fiennes", "Monica Bellucci", "Naomie Harris"]]]

var leadActor: String = ""

// Enter code below

if let film = movieDictionary["Spectre"] {
  if let castArray = film["cast"]{
    leadActor = castArray[0] {

    }
  }

}

1 Answer

miikis
miikis
44,957 Points

Hey John,

You almost got it. Just remove the opening and closing braces after you set the leadActor. Not sure why you put them there.

John Wilcox
John Wilcox
4,233 Points
John Wilcox
John Wilcox
4,233 Points

Oh man. Yep that would explain it. Thanks sir,