Trying to append dictionary in Swift

Question

I am trying to create then append a dictionary but I am getting the following error I can't solve: Cannot subscript a value of type '[String: AnyObject]?' with an index of type 'String'

Anyone has an idea? Thanks in advance!

    var parameters: [String:[String:AnyObject]] = [
        "user": [
            "email": email,
            "password": passwordTextField.text,
            "first_name": firstName,
            "last_name": lastName
        ]
    ]

    parameters["user"]["status"] = "Connected"

Shamas S · Accepted Answer · 2015-08-11T08:02:03.980

2

Whatever you retreive from a Dictionary may or may not exist, hence its return value is optional. if you are 100% certain, the returned value is not nil, use !, otherwise either check for nil or use ? (As pointed out by Lucian Boboc)

In your code, try replacing with the following.

parameters["users"]!["status"] = "Connected"

edited Aug 11 '15 at 08:02

answered Aug 11 '15 at 07:54

Shamas S

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1

That is because the return value is optional, if you are 100% the returned value is not nil, use "!", otherwise, use "?" – Lucian Boboc Aug 11 '15 at 07:55

score 2 · Answer 2 · answered Aug 11 '15 at 07:55

2

parameters["user"] is an optional so you have to unwrap the optional explicitly, since you know the value exists.

parameters["user"]!["status"] = "Connected"

answered Aug 11 '15 at 07:55

vadian

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Trying to append dictionary in Swift

2 Answers2