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Answers and rating deltas for

why do we prefer ? to ?? operator in c#?

Author Votes Δ
Bob 39 +1.49
Rytmis 12 +0.90
Binoj Antony 6 +0.09
Matthew Whited 2 -0.15
Fredrik Mörk 1 -1.69
Karel Bílek 1 -1.63
Bryan 0 -3.43
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