Not a swift programmer, but in general the advantage of the ADT Result is composability and the use of higher order functions (map, mapError, flatMap, fold), while the example is focussing only on unwrapping the datatype.
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Not a swift programmer, but in general the advantage of the ADT
Result
is composability and the use of higher order functions (map, mapError, flatMap, fold), while the example is focussing only on unwrapping the datatype.