StackRating
An Elo-based rating system for Stack Overflow
Answers and rating deltas for
Xcode6 GM, Value of optional type 'NSURL?' not unwrapped; did you mean to use '!'...
| Author | Votes | Δ |
|---|---|---|
| NSRover | 0 | 0.00 |
Last visited: May 1, 2015, 6:51:53 PM