Created
July 7, 2018 20:09
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Map from `Dictionary<Key, Value>` to `Dictionary<T, U>`
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| public extension Dictionary { | |
| public func mapPairs<T: Hashable, U>(_ transform: ((key: Key, value: Value)) throws -> (key: T, value: U)) rethrows -> [T: U] { | |
| return .init(uniqueKeysWithValues: try self.map(transform)) | |
| } | |
| } | |
| let x = ["1": 1, "2": 2, "3": 3] | |
| let y = x.mapPairs { (Int($0.key)!, "\($0.value)") } | |
| print(x) // ["1": 1, "2": 2, "3": 3] | |
| print(y) // [1: "1", 2: "2", 3: "3"] |
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