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Answers and rating deltas for

What is the meaning of the : in Swift 4 function signatures and why is there no comma when it seems

Author Votes Δ
Rob 4 +0.69
Dávid Pásztor 2 -0.42
Bob Zimmermann 2 +0.90
kid_x 1 -3.06
Last visited: May 11, 2019, 11:16:05 PM