Created
September 20, 2016 12:39
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Unique Sequence
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| func uniq<S: SequenceType, E: Hashable where E==S.Generator.Element>(source: S) -> [E] { | |
| var seen: [E:Bool] = [:] | |
| return source.filter { seen.updateValue(true, forKey: $0) == nil } | |
| } |
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