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Answers and rating deltas for

Is returning null from a "get error message" method an anti-pattern?

Author Votes Δ
Hot Licks 1 +1.90
Jay Smith 0 -0.50
Guillaume Serre 0 -0.65
Fritz 0 -0.47
user949300 0 -0.06
wchargin 0 -0.57
Jack 0 -0.66
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