ios - Swift 2 Json NSDictionary to String gives Optional("String") Error -

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• what optional value in swift? 12 answers

i have working json parsing codes , when take example , post["name"] as? string gives output optional("john")

i want output = john

my codes here

func post(url : string, completionhandler : ((success : int, message : string) -> void)) {          guard let url = nsurl(string: url string) else {              return         }          let urlrequest = nsurlrequest(url: url)           let config = nsurlsessionconfiguration.defaultsessionconfiguration()         let session = nsurlsession(configuration: config)          let task = session.datataskwithrequest(urlrequest, completionhandler: { (data, response, error) in             guard let responsedata = data else {                  return             }             guard error == nil else {                  print(error)                 return             }              let post: nsdictionary             {                 post = try nsjsonserialization.jsonobjectwithdata(responsedata,                     options: []) as! nsdictionary             } catch  {                  return             }              // add user limits session              let name = post["name"] as? string               print(name) // here gives output optional("john")                 let numberfromstring = int((post["success"] as? string)!)              completionhandler(success: (numberfromstring)!, message: (post["message"] as? string)!)          })         task.resume()      } 

you can see working codes here. want output = john ,

thank you.

you're printing optional value, means need unwrap it. e.g.

print(name!) 

but crash if name nil.