[Haskell-cafe] Re: (!!) operator usage

Neil Rutland writes: [snip]

type Bob = [(Int, Int)] newLine :: Bob newLine = [(1,4)]

i have tried to use the follwing but it returns the error below it.

newLine !! 0 - (so that should give it the newLine list and try and return the 1st element of the list)

the error reads thus

ERROR file:.\VicotriaLine.txt:107 - Type error in final generator *** Term : newLine !! 0 *** Type : (Int,Int) *** Does not match : IO a

newLine is already defined -- call it 'x' instead and !! will do what you expect. Tom