let ability1? = dict[0] as! [String: AnyObject]
let ability2? = dict[1] as! [String: AnyObject]
Since you are dealing with JSON,
let ability1 = dict[0] as? [String: AnyObject]
let ability2 = dict[1] as? [String: AnyObject]
arg as! T
- forced cast, returns T
if it succeeds, otherwise fatalError
.
arg as? T
- conditional cast, returns T?
, which is nil
if the cast fails.
FYI: Type Casting
You can also use dict[0] as! [String: AnyObject]?
to say "I know this is either nil
or this specific dictionary type".
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