StackRating
An Elo-based rating system for Stack Overflow
Answers and rating deltas for
Swift Delegation: unexpectedly found nil while unwrapping an Optional value
| Author | Votes | Δ |
|---|---|---|
| Fangming | 1 | -0.02 |
| Tamás Sengel | 1 | +0.16 |
Last visited: Oct 27, 2017, 7:18:27 AM