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Before, I have successfully added a ! to force an unwrap to remove the "Optional()" from a variable. I am unable to do this in data returned from Parse.com
query.findObjectsInBackgroundWithBlock {
(objects: [AnyObject]!, error: NSError!) -> Void in
if error == nil {
for object in objects {
println(object[myObject]!)
}
} else {
println("Error: \(error) \(error.userInfo!)")
}
}
In the example above, the entire table from the Parse.com class is returned and printed to the console. However,
Optional(...)
is returned for each line even though I force an unwrap using ! at the end
What am I missing?
(Note: myObject is the name of the Column in the Parse Class database)
795
If my assumption is incorrect, then one quick hack you can quickly do to get rid of the "Optional" in the text is to change your strings to force unwrap item , like so: theYears. text = "\(item!. experience)" . Though I would recommend structuring things so that you're not force unwrapping with the !
How to declare an Optional? You can simply represent a Data type as Optional by appending ! or ? to the Type . If an optional contains a value in it, it returns value as Optional<Value> , if not it returns nil .
Unwrap an optional type with the nil coalescing operator If a nil value is found when an optional value is unwrapped, an additional default value is supplied which will be used instead. You can also write default values in terms of objects.
An optional value either contains a value or contains nil to indicate that the value is missing.
MirekE was right. It was a nested Optional(Optional()).
to fix I:
println(object[myObject]!!)
You only have to put "!" at the end of your variable, in print area
self.addressLabel.text = "\(subThoroughfare) \(p.thoroughfare!) \n \(p.subLocality!) \n \(p.subAdministrativeArea!) \n)".
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