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[SWIFT 4.0] Forward Pipe Operator
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| infix operator |>: AdditionPrecedence | |
| func |> <T, U>(value: T, function: ((T) -> U)) -> U { | |
| return function(value) | |
| } | |
| func pow(_ value: Int) -> String { | |
| return "ahihi \(value * value)" | |
| } | |
| let k = 3 |> pow |
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