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associatedType
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protocol ItemStoring { | |
associatedtype DataType | |
var items: [DataType] { get set } | |
mutating func add(item: DataType) | |
} | |
extension ItemStoring { | |
mutating func add(item: DataType) { | |
items.append(item) | |
} | |
} | |
struct NameDataBase: ItemStoring { | |
var items = [String]() | |
} | |
var names = NameDataBase() | |
names.add(item: "Test 1") | |
names.add(item: "Item 2") | |
print(names) |
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