Swift

Generics vs Any

During code review you find the same logic overloaded per type: func larger(_ a: Int, _ b: Int) -> Int, larger(_ a: Double, _ b: Double) -> Double, larger(_ a: String, ...). You want to propose one generic function instead. How is taking a generic parameter different from taking Any?

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A generic puts a constraint like Comparable on the placeholder T, removing the duplication while keeping compile-time type checking. Any needs casts and fails at runtime.

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Generics vs Any

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