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Within LTS Haskell 24.49 (ghc-9.10.3)
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mapMaybeM :: (IsStream t, MonadAsync m, Functor (t m)) => (a -> m (Maybe b)) -> t m a -> t m bstreamly Streamly.Prelude Like mapMaybe but maps a monadic function. Equivalent to:
mapMaybeM f = Stream.map fromJust . Stream.filter isJust . Stream.mapM f
Concurrent (do not use with fromParallel on infinite streams)mapM_ :: (Monad m, Unboxable a) => (a -> m b) -> Vector a -> m ()unboxing-vector Data.Vector.Unboxing No documentation available.
mapMaybe :: (Unboxable a, Unboxable b) => (a -> Maybe b) -> Vector a -> Vector bunboxing-vector Data.Vector.Unboxing No documentation available.
mapMaybe :: Interval k e => (a -> Maybe b) -> IntervalMap k a -> IntervalMap k bIntervalMap Data.IntervalMap.Generic.Lazy O(n). Map values and collect the Just results.
mapMaybeWithKey :: Interval k e => (k -> a -> Maybe b) -> IntervalMap k a -> IntervalMap k bIntervalMap Data.IntervalMap.Generic.Lazy O(n). Map keys/values and collect the Just results.
mapMaybe :: Interval k e => (a -> Maybe b) -> IntervalMap k a -> IntervalMap k bIntervalMap Data.IntervalMap.Generic.Strict O(n). Map values and collect the Just results.
mapMaybeWithKey :: Interval k e => (k -> a -> Maybe b) -> IntervalMap k a -> IntervalMap k bIntervalMap Data.IntervalMap.Generic.Strict O(n). Map keys/values and collect the Just results.
mapMaybe :: Interval k e => (a -> Maybe b) -> IntervalMap k a -> IntervalMap k bIntervalMap Data.IntervalMap.Lazy O(n). Map values and collect the Just results.
mapMaybeWithKey :: Interval k e => (k -> a -> Maybe b) -> IntervalMap k a -> IntervalMap k bIntervalMap Data.IntervalMap.Lazy O(n). Map keys/values and collect the Just results.
mapMaybe :: Interval k e => (a -> Maybe b) -> IntervalMap k a -> IntervalMap k bIntervalMap Data.IntervalMap.Strict O(n). Map values and collect the Just results.