wren ng thornton wrote:
Daryoush Mehrtash wrote:
The MaybeT transformer is defined as:
newtype MaybeT m a = MaybeT {runMaybeT :: m (Maybe a)}
Question: What does runMaybeT x mean?
As for what does it do, I think everyone else has handled that pretty
well. As far as what does it
The MaybeT transformer is defined as:
newtype MaybeT m a = MaybeT {runMaybeT :: m (Maybe
http://haskell.org/ghc/docs/latest/html/libraries/base/Prelude.html#t:Maybe
a)}
instance Functor
http://haskell.org/ghc/docs/latest/html/libraries/base/Prelude.html#t:Functor
m = Functor
2008/9/9 Daryoush Mehrtash [EMAIL PROTECTED]:
The MaybeT transformer is defined as:
newtype MaybeT m a = MaybeT {runMaybeT :: m (Maybe a)}
instance Functor m = Functor (MaybeT m) where
fmap f x = MaybeT $ fmap (fmap f) $ runMaybeT x
Question: What does runMaybeT x mean?
If
2008/9/8 Daryoush Mehrtash [EMAIL PROTECTED]:
The MaybeT transformer is defined as:
newtype MaybeT m a = MaybeT {runMaybeT :: m (Maybe a)}
Question: What does runMaybeT x mean?
This is just shorthand for the following:
newtype MaybeT m a = MaybeT (m (Maybe a))
runMaybeT :: MaybeT m a -
Daryoush Mehrtash wrote:
The MaybeT transformer is defined as:
newtype MaybeT m a = MaybeT {runMaybeT :: m (Maybe
http://haskell.org/ghc/docs/latest/html/libraries/base/Prelude.html#t:Maybe
a)}
instance Functor http://haskell.org/ghc/docs/latest/html/libraries/base/Prelude.html#t:Functor m
Daryoush Mehrtash wrote:
The MaybeT transformer is defined as:
newtype MaybeT m a = MaybeT {runMaybeT :: m (Maybe a)}
Question: What does runMaybeT x mean?
As for what does it do, I think everyone else has handled that pretty
well. As far as what does it mean, it may help to think
