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Answers and rating deltas for

Why does '7' + 4 give '74', whereas '7' - 4 gives 3 in javascript?

Author Votes Δ
cletus 29 +0.81
Andy 22 +2.87
Delan Azabani 15 +0.78
ant 2 -0.80
mauris 2 -1.01
Last visited: Sep 14, 2014, 5:07:29 AM