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February 28, 2016 23:41
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A...Z
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| extension Character: ForwardIndexType { | |
| public func successor() -> Character { | |
| return Character(String(self).successor()) | |
| } | |
| } | |
| extension String: ForwardIndexType { | |
| public func successor() -> String { | |
| let scalars = self.unicodeScalars | |
| let scalar = scalars[scalars.startIndex] | |
| let nextScalar = UnicodeScalar(scalar.value + 1) | |
| return String(nextScalar) | |
| } | |
| } | |
| let a = "a"..."z" | |
| "".join(a) |
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