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iOS

Posted by Jason Hernandez Berland
Jason Hernandez Berland
1,575 Points

Is this the right way to replace ! operator w/ optional and if let statement

So I'm using Parse as my backend and trying to update an object. Their docs call for the following:

var query = PFQuery(className:"GameScore")
query.getObjectInBackgroundWithId("xWMyZEGZ") { 
  (gameScore: PFObject!, error: NSError!) -> Void in
  if error != nil {
    NSLog("%@", error)
  } else {
    gameScore["cheatMode"] = true
    gameScore["score"] = 1338
    gameScore.saveInBackground()
  }
}

My understanding of ! is that there is always a chance that your app can crash if the return comes back empty. thinking about changing to optional to safeguard:

var query = PFQuery(className:"GameScore")
query,getObjectInBackgroundWithId("xWMyZEGZ") {
(gameScore: PFObject?, error:NSError?) -> Void in?

Don;t even know how to form the let if statement with this one. Anyone?