[Haskell] Haskell [x] and x notation - as-pattern example

[Henning Thielemann]

On Wed, 3 Apr 2013, Angus Comber wrote:

> I am reading Learn you a Haskell for great good and on page 40 - as-patterns.

This question is certainly better for the beginners list:
    http://www.haskell.org/mailman/listinfo/beginners

In your case

    x :: Char
    xs :: [Char]

    [x] :: Char

That is, the brackets create a list from the single character x. This way 
it provides the list type as required by (++).