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Maribel Aristy
Graphic Design
Art
Software Development
Maribel Aristy
Graphic Design
Art
Software Development
Day:
December 19, 2017
19
Dec
Software Development
Swift 4
OPTIONALS MASTERCLASS
by
Maribel
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Optionals say either "there is a value, and it equals x" or "there isn't a value at all". An Optional is a type on its...