if and switch as expressions

IfAndSwitchAsExpression.swift

import Foundation

let randomInt = Int.random(in: 0...3)

let spelledOut: String = {
    switch randomInt {
    case 0:
        return "Zero"
    case 1:
        return "One"
    case 2:
        return "Two"
    case 3:
        return "Three"
    default:
        return "Out of range"
    }
}()

print(spelledOut)