Hello everyone,

I couldnt understand the 5th questions logic since, the top questions says "this code is valid swift - true or false -.

func paintHouse (color: String) -> Bool { if color == "tartan" { return false } }

i think this is valid swift! but paul says: "Oops - that's not correct. This does not return a value if color is not "tartan"."

but the color might me tartan so code is valid?

what are your thoughts?

-> Bool

The function returns a Bool and only has an if … then, for one result for the boolean. It needs to be if … then … else to return the full boolean.

if color == "tartan" { return false }

needs to be

if color == "tartan" { return false } else { return true }

for it to be correct code.

You could do, as the color == "tarten" will produce a Bool of true, however you want the fasle so need to use !=

func paintHouse(color: String) -> Bool { color != "tartan" }