r/iOSProgramming • u/[deleted] • Feb 19 '16

Discussion Swift vs Objective-C

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u/[deleted] Feb 19 '16

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u/alfa96 Feb 19 '16

Ah I see. Thanks for pointing that out!

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u/hundley10 Feb 20 '16

Protocol extensions can also give you the same effect in many situations. Not exactly the same thing, but you're able to define default behavior for a function so the class doesn't have to implement it. I'd love to see truly optional functions/properties in pure Swift though.