🔥 Poll: Which features of Swift stand out most to you?

Using Swift
39

I'd say enums, but IMHO they should be more ergonomic, e.g.:

enum E {
    ...
	case a(x: Int, Int)
}

var e = E.a(x: 1, 2)
let v = e.a // this is of type `(x: Int, Int)!`
e.a.x = 100 // change associated value field by name
e.a.1 = 200 // change associated value field by index
if let v = e.a { // optional binding
	v.0 ...
	v.y ...
}
let isA = e.a != nil
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