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An Elo-based rating system for Stack Overflow
                
    Answers and rating deltas for
    How can you enforce a subclass of an NSObject-based base class override a class-level variable?
| Author | Votes | Δ | 
|---|---|---|
| matt | 1 | +0.39 | 
| Joakim Danielson | 0 | -1.49 | 
| SaganRitual | 0 | -1.59 | 
Last visited: Jun 20, 2018, 6:45:27 PM