get value from swift dictionary-CodePudding

 let dict1 : [String:Any] = ["id":19,"userinfo": ["name":"janak",
                                                  "mobileN":999889,
                                                  "email": "[email protected]"]]

how i gat email value from user info ? my code is

let  cvc  = dict1["userinfo"]
print(cvc!)

CodePudding user response：

You need to tell the compiler what type you expect to get when you query userinfo. Since the expectation can fail, you then also need to unwrap the optional (the ? in my example) and what you expect to get when reading email:

let email: String? = (dict1["userinfo"] as? [String:Any])?["email"] as? String

CodePudding user response：

you need to typecast key to a particular type, since user info is again dictionary,we need to typecast it .

if let userInfoData = dict1["userinfo"] as? [String: Any], let email = userInfoData["email"] as? String {
print("Email: \(email)") }

CodePudding user response：

you can use optional chaining to access the email value:

if let email = (dict1["userinfo"] as? [String:Any])?["email"] as? String {
  print(email)     
}