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DJBen/KeyOrderMap.swift

Created May 6, 2017 00:46
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Swift 3 map function ordered by key
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KeyOrderMap.swift
extension Dictionary where Key: Comparable {
func keyOrderMap<T>(_ transform: @escaping ((key: Key, value: Value)) throws -> T) rethrows -> [T] {
return try keys.sorted().map { try transform(($0, self[$0]!)) }
}
}
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