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Within LTS Haskell 24.38 (ghc-9.10.3)
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tryIOErrorMaybe :: forall (r :: EffectRow) a . Member (Embed IO) r => IO a -> Sem r (Maybe a)incipit-core Incipit.Exception -
incipit-core Incipit.Exception Run an IO via Embed and catch exceptions of type e, returning Maybe.
tryMaybe :: forall (r :: EffectRow) a . Member (Embed IO) r => IO a -> Sem r (Maybe a)incipit-core Incipit.Exception Run an IO via Embed and catch all exceptions, returning Maybe.
fromMaybeJSString :: FromJSString a => JSVal -> JSM (Maybe a)jsaddle-dom JSDOM.Types No documentation available.
nullableToMaybe :: FromJSVal a => JSVal -> JSM (Maybe a)jsaddle-dom JSDOM.Types No documentation available.
toMaybeJSString :: ToJSString a => Maybe a -> JSM JSValjsaddle-dom JSDOM.Types No documentation available.
catMaybeI :: Parser (Maybe a) -> Parser ajson-stream Data.JsonStream.Parser Filter Nothing values out of a stream
mapMaybeM :: Monad m => Maybe a -> (a -> m b) -> m (Maybe b)language-c Language.C.Analysis.TravMonad No documentation available.
sMapMaybe :: state -> (update -> Maybe state) -> SFlow update statemidair Midair.Handy No documentation available.
iterateMaybeM :: Monad m => (a -> m (Maybe a)) -> a -> m [a]monad-extras Control.Monad.Extra Monadic equivalent to iterate, which uses Maybe to know when to terminate.