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iOS Build a Weather App with Swift (Retired) Concurrency Working With JSON

matt tripodi
matt tripodi
2,673 Points

Need help with challenge

I am stuck on this challenge and can't figure it out, can someone please explain how to do it.

Let's assume we have a data object named userCourseData. We'll mock the data in this challenge, but it could easily have been returned from the Treehouse API with the code: let userCourseData = NSData(contentsOfURL: courseURL). Convert the JSON data to an NSDictionary and store it in a constant named userCourseDictionary. Hint: use the NSJSONSerialization class.

// We've already created a NSData object with some json encoded data for you
import Foundation

let jsonString : NSString = "{\"results\": \"success\"}"
let userCourseData : NSData = jsonString.dataUsingEncoding(NSUTF8StringEncoding)!
let userCourseDictionary : NSDictionary = NSJSONSerialization.(JSONObjectWithData) as NSDictionary
// Now you just need to decode it