Hi Angus,
Angus Comber wrote:
Also xs is of what type? list of values? So does this mean x is an
element and xs must be of type list? Confused...
Here is how you can use ghci to investigate such questions:
ghci
GHCi, version 7.4.2: http://www.haskell.org/ghc/ :? for help
Loading package ghc-prim ... linking ... done.
Loading package integer-gmp ... linking ... done.
Loading package base ... linking ... done.
Prelude> let all@(x:xs) = "hello world"
Prelude> x
'h'
Prelude> xs
"ello world"
Prelude> all
"hello world"
Prelude> :t x
x :: Char
Prelude> :t xs
xs :: [Char]
Prelude> :t all
all :: [Char]
Prelude> x
'h'
Prelude> [x]
"h"
Prelude> :t x
x :: Char
Prelude> :t [x]
[x] :: [Char]
Prelude> :q
Leaving GHCi.
Tillmann
PS. The haskell@haskell.org list is mostly for announcements, so
questions like this are better suited for beginn...@haskell.org or
haskell-c...@haskell.org.
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