I've been trying this for ages and still can't get it right. Somebody please help.
EDIT: I was wrong, but still
var foodDemand = function(food)
Good to space things out rather than having it as
@ghughes13 is correct I believe
You're just calling it wrong. No big.
Change the last line to foodDemand("pizza")
@benjnev's right too though. Spacing's essential to having readable code when you start writing a lot of it.