Tips for golfing in Io What general tips do you have for golfing in Io? I'm looking for ideas that can be applied to code golf problems in general that are at least somewhat specific to Io (e.g. "remove comments" is not an answer). Please post one tip per answer.
Higher-level function shorthand
This seems like a pretty interesting golfing point. E.g.

list(1,2,3)map(i,i+1)print

However, Io is pretty permissive on not specifying the counter; the map body can be used as a point-free function, as Io tries to fill in the operand of this expression. This can be golfed into

list(1,2,3)map(+1)print


Due to the helpful work of the language creator, you can even do this to reduces!
list(1,2,3)reduce(a,b,a*b)

Can easily be reduced into:
list(1,2,3)reduce(*)

(Unfortunately, I still haven't managed to understand how exactly this works, so I never managed to make the expression more complex.)