Partial application of operators

Question

If I want to add a space at the end of a character to return a list, how would I accomplish this with partial application if I am passing no arguments?

Also would th

Answer 1

What you want here is an operator section. For that, you'll need to surround the application with parentheses, i.e.

space = (: " ")

which is syntactic sugar for

space = (\x -> x : " ")

(++) won't work here because it expects a string as the first argument, compare:

(:)  :: a -> [a] -> [a]
(++) :: [a] -> [a] -> [a]