Hi,
I've imported the State monad module and used in the 'pop' function that will pop the head out of the list but am getting error in GHCi.
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import Control.Monad.State
let pop = State $ \(x:xs) -> (x,xs)
<interactive>:73:11:
Not in scope: data constructor ‘State’
Perhaps you meant ‘StateT’ (imported from Control.Monad.State)
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Please can anyone point out what the issue is here?
Thanks,