Swift Language Type Casting
Syntax
-
let name = json["name"] as? String ?? ""// Output: john -
let name = json["name"] as? String // Output: Optional("john") -
let name = rank as? Int // Output: Optional(1) -
let name = rank as? Int ?? 0 // Output: 1 -
let name = dictionary as? [String: Any] ?? [:] // Output: ["name" : "john", "subjects": ["Maths", "Science", "English", "C Language"]]
