Re: [Factor-talk] maybe{

On Sun, Dec 25, 2016 at 12:21 AM, Alexander Ilin wrote: > > That's a very useful feature, and it seems to be there for five years! But > why is it not described or even mentioned? I don't know why it's not documented but it looks like an anonymous form of UNION:. The

[Factor-talk] maybe{

Hello! Once again I'm amazed, in a good way, by Factor. I have tried a while ago to use typed slots as much as possible, but soon found out that if I want a slot to be integer, I can't have an "undefined" value for it: `TUPLE: opt-coord { x integer initial: f } { y integer initial: f } ;`