>
> Did you mean “implicitly unwrapped”? Then, by the above logic, the type of
> the ‘if’ expression is Bool, so it would crash if ‘bbb’ is nil. Otherwise, it
> would test the boolean value of ‘bbb’.
Turns out, after a try in a playground, that this is the right way to do it:
var b : Bool! = nil
var ans : String?
if b {
if b! {
ans = "True"
} else {
ans = "False"
}
} else {
ans = "Nil"
}
The first test sifts nil from everything else, and the second one 'true' from
'false'.
Vincent
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