What is the method for retrieving the value of __nssingleobjectarrayi in the code provided?

After parsing a JSON file, I was able to obtain a JSON Dictionary.

{
data =     (
            {
        bio = "<null>";
        bookmarked = 35;
        id = 22;
        "last_seen" =             {
            date = "2017-03-30 14:00:01";
            timezone = "Asia/Kolkata";
            "timezone_type" = 3;
        };
        name = "Alex";
        username = "Alex";
    }
);}

My goal is to retrieve the username and the date. I attempted to do so with the following code

let name = userData.value(forKeyPath: "data.username")
print(username)

However, when I print this, it returns a __NSSingleObjectArrayI containing the username.

Optional(<__NSSingleObjectArrayI 0x6080000120b0>(
Alex
)
)

How can I access and display this information in other places? Essentially, how can I extract the string "Alex" from this object?

Answer №1

When using the value(forKeyPath) method on an array that contains dictionaries, it will return an array – as shown in the output. To access the first item in the array</p>

<pre><code>let names = userData.value(forKeyPath: "data.username")
if !names.isEmpty { print(names[0]) }

Alternatively, you can also retrieve the name using

if let data = userDatavalue["data") as? [[String:Any]], !data.isEmpty,
   let username = data[0]["username"] as? String {
      print(username)
}

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