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A common pattern is to implement respondsToSelector: to check out if a delegate item implements an optional strategy before sending it that concept. One example is:
Certainly, Will probably be improved Should you be demanding when tests the result, however it’s generally better to see something best than asking for variations and rework.
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Making use of a method that usually takes an NSError usually means working with an optional variable (a variable that might or might not exist) plus the unwrapping the mistake if it exists.
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A possible pitfall with types, nevertheless, is identify clashes. In case you employ a class approach Together with the identical name as an present system in the referenced course, the habits at runtime is undefined (i.
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Any developer who may have at any time labored inside of a crew setting is aware the necessity of holding steady coding principles.
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