Is an enum a value type or a reference type?

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Main Source: 🔗 Ace the iOS Interview

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TL/DR

In Swift, an enum is a value type (other value types include structs and tuples).

In the following example, you’ll see that changes made to one variable have no effect on the other.

This is because the value is simply copied from one variable to another - they don’t point to the same location in memory.

enum CarBrands {
    case porsche
    case mercedes
}

var porsche = CarBrands.porsche
var mercedes = porsche

porsche = .mercedes

print(porsche) // Output: mercedes
print(mercedes) // Output: porsche