StackRating
An Elo-based rating system for Stack Overflow
                
    Answers and rating deltas for
    Is it possible to undefine a variable in ruby?
| Author | Votes | Δ | 
|---|---|---|
| vincent | 7 | +4.44 | 
| Tim Knight | 5 | +2.03 | 
| paxdiablo | 3 | -0.19 | 
| grepsedawk | 1 | -4.14 | 
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