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traverse :: forall t a b m. Traversable t => Applicative m => (a -> m b) -> t a -> m (t b)
P purescript-foldable-traversable M Data.Traversable
traverse1 :: forall t a b f. Traversable1 t => Apply f => (a -> f b) -> t a -> f (t b)
P purescript-foldable-traversable M Data.Semigroup.Traversable
traverse1Default :: forall t a b m. Traversable1 t => Apply m => (a -> m b) -> t a -> m (t b)

A default implementation of traverse1 using sequence1.

P purescript-foldable-traversable M Data.Semigroup.Traversable
traverseDefault :: forall t a b m. Traversable t => Applicative m => (a -> m b) -> t a -> m (t b)

A default implementation of traverse using sequence and map.

P purescript-foldable-traversable M Data.Traversable
traverseDefault :: forall i t a b m. TraversableWithIndex i t => Applicative m => (a -> m b) -> t a -> m (t b)

A default implementation of traverse in terms of traverseWithIndex

P purescript-foldable-traversable M Data.TraversableWithIndex
collect :: forall f a b g. Distributive f => Functor g => (a -> f b) -> g a -> f (g b)
P purescript-distributive M Data.Distributive
collectDefault :: forall a b f g. Distributive f => Functor g => (a -> f b) -> g a -> f (g b)

A default implementation of collect, based on distribute.

P purescript-distributive M Data.Distributive
parTraverse :: forall f m t a b. Parallel f m => Applicative f => Traversable t => (a -> m b) -> t a -> m (t b)

Traverse a collection in parallel.

P purescript-parallel M Control.Parallel
crosswalk :: forall f t a b. Crosswalk f => Alignable t => (a -> t b) -> f a -> t (f b)
P purescript-these M Data.Align
traverseByWither :: forall t m a b. Witherable t => Applicative m => (a -> m b) -> t a -> m (t b)

A default implementation of traverse given a Witherable.

P purescript-filterable M Data.Witherable
traverse :: forall m p q a b. Dissect p q => MonadRec m => (a -> m b) -> p a -> m (p b)

A tail-recursive traverse operation, implemented in terms of Dissect.

Derived from: https://blog.functorial.com/posts/2017-06-18-Stack-Safe-Traversals-via-Dissection.html

P purescript-dissect M Dissect.Class
traverse :: forall t m b a. HasTraverse t => HasApply m => HasMap m => HasPure m => (a -> m b) -> t a -> m (t b)
P purescript-neon M Neon.Class.HasTraverse
oneOfMap :: forall f g a b. Foldable f => Plus g => (a -> g b) -> f a -> g b

Folds a structure into some Plus.

P purescript-foldable-traversable M Data.Foldable
parOneOfMap :: forall a b t m f. Parallel f m => Alternative f => Foldable t => Functor t => (a -> m b) -> t a -> m b

Race a collection in parallel while mapping to some effect.

P purescript-parallel M Control.Parallel
bindFlipped :: forall m a b. Bind m => (a -> m b) -> m a -> m b

bindFlipped is bind with its arguments reversed. For example:

print =<< random
P purescript-prelude M Control.Bind
chain :: forall a c b. HasChain a => (b -> a c) -> a b -> a c
P purescript-neon M Neon.Class.HasChain
experiment :: forall f a w s. ComonadStore s w => Functor f => (s -> f s) -> w a -> f a

Extract a collection of values from positions which depend on the current position.

P purescript-transformers M Control.Comonad.Store.Class
iterateM :: forall b a m. Monad m => (a -> m a) -> m a -> m b
P purescript-game M Game.Util
oneOfMap :: forall f a b s. Convert s (Statements a) => Plus f => (a -> f b) -> s -> f b
P purescript-qualified-do M QualifiedDo.OneOfMap
parOneOfMap :: forall m f a b s. Convert s (Statements a) => Parallel f m => Alternative f => (a -> m b) -> s -> m b
P purescript-qualified-do M QualifiedDo.ParOneOfMap
liftA1 :: forall f a b. Applicative f => (a -> b) -> f a -> f b

liftA1 provides a default implementation of (<$>) for any Applicative functor, without using (<$>) as provided by the Functor-Applicative superclass relationship.

liftA1 can therefore be used to write Functor instances as follows:

instance functorF :: Functor F where
  map = liftA1
P purescript-prelude M Control.Applicative
liftM1 :: forall m a b. Monad m => (a -> b) -> m a -> m b

liftM1 provides a default implementation of (<$>) for any Monad, without using (<$>) as provided by the Functor-Monad superclass relationship.

liftM1 can therefore be used to write Functor instances as follows:

instance functorF :: Functor F where
  map = liftM1
P purescript-prelude M Control.Monad
map :: forall f a b. Functor f => (a -> b) -> f a -> f b
P purescript-prelude M Data.Functor
mapDefault :: forall i f a b. FunctorWithIndex i f => (a -> b) -> f a -> f b

A default implementation of Functor's map in terms of mapWithIndex

P purescript-foldable-traversable M Data.FunctorWithIndex
squigglyMap :: forall f a b. Functor f => (a -> b) -> f a -> f b
P purescript-signal M Signal
transCataTM :: forall t f m. Recursive t f => Corecursive t f => Monad m => Traversable f => (t -> m t) -> t -> m t
P purescript-matryoshka M Matryoshka.Fold
map :: forall p q a b. Dissect p q => (a -> b) -> p a -> p b

A tail-recursive map operation, implemented in terms of Dissect.

P purescript-dissect M Dissect.Class
defaultFilter :: forall a h f. BooleanEq h => Applicative f => Foldable f => Monoid (f a) => (a -> h) -> f a -> f a
P purescript-filterables M Data.Filterable
everywhereM :: forall m a. Monad m => Data a => (forall b. Data b => b -> m b) -> a -> m a

Apply a monadic transformation everywhere, bottom-up

P purescript-ajnsit-typeable M Data.Data
filter :: forall f h a. Filterable f => BooleanEq h => (a -> h) -> f a -> f a
P purescript-filterables M Data.Filterable
gmapM :: forall m a. Data a => Monad m => (forall d. Data d => d -> m d) -> a -> m a

A generic monadic transformation that maps over the immediate subterms

P purescript-ajnsit-typeable M Data.Data
gmapMo :: forall m a. Data a => MonadPlus m => (forall d. Data d => d -> m d) -> a -> m a

Transformation of one immediate subterm with success

P purescript-ajnsit-typeable M Data.Data
gmapMp :: forall m a. Data a => MonadPlus m => (forall d. Data d => d -> m d) -> a -> m a

Transformation of at least one immediate subterm does not fail

P purescript-ajnsit-typeable M Data.Data
map :: forall a c b. HasMap a => (b -> c) -> a b -> a c
P purescript-neon M Neon.Class.HasMap
map :: forall f a b. Functor f => (a -> b) -> f a -> f b
P purescript-qualified-do M QualifiedDo.ParApply
mkM :: forall a b m. Typeable a => Typeable b => Typeable (m a) => Typeable (m b) => Applicative m => (b -> m b) -> a -> m a
P purescript-ajnsit-typeable M Data.Data
cmap :: forall f a b. Contravariant f => (b -> a) -> f a -> f b
P purescript-contravariant M Data.Functor.Contravariant
censor :: forall w m a. MonadWriter w m => (w -> w) -> m a -> m a

Modify the final accumulator value by applying a function.

P purescript-transformers M Control.Monad.Writer.Class
local :: forall e w a. ComonadEnv e w => (e -> e) -> w a -> w a
P purescript-transformers M Control.Comonad.Env.Class
local :: forall r m a. MonadReader r m => (r -> r) -> m a -> m a
P purescript-transformers M Control.Monad.Reader.Class
seeks :: forall s a w. ComonadStore s w => (s -> s) -> w a -> w a

Reposition the focus at the specified position, which depends on the current position.

P purescript-transformers M Control.Comonad.Store.Class
censorAccum :: forall acc html a. Accum acc html => (acc -> acc) -> html a -> html a
P purescript-chameleon-transformers M Chameleon.Transformers.Accum.Class
setCtx :: forall ctx html a. Ctx ctx html => (ctx -> ctx) -> html a -> html a
P purescript-chameleon-transformers M Chameleon.Transformers.Ctx.Class
mapErr :: forall e m a. MonadError e m => (e -> e) -> m a -> m a
P purescript-ts-bridge M TsBridge.Types
all :: forall a b f. Foldable f => HeytingAlgebra b => (a -> b) -> f a -> b

all f is the same as and <<< map f; map a function over the structure, and then get the conjunction of the results.

P purescript-foldable-traversable M Data.Foldable
any :: forall a b f. Foldable f => HeytingAlgebra b => (a -> b) -> f a -> b

any f is the same as or <<< map f; map a function over the structure, and then get the disjunction of the results.

P purescript-foldable-traversable M Data.Foldable
foldMap :: forall f a m. Foldable f => Monoid m => (a -> m) -> f a -> m
P purescript-foldable-traversable M Data.Foldable
foldMap1 :: forall t a m. Foldable1 t => Semigroup m => (a -> m) -> t a -> m
P purescript-foldable-traversable M Data.Semigroup.Foldable
foldMap1DefaultL :: forall t m a. Foldable1 t => Functor t => Semigroup m => (a -> m) -> t a -> m

A default implementation of foldMap1 using foldl1.

Note: when defining a Foldable1 instance, this function is unsafe to use in combination with foldl1Default.

P purescript-foldable-traversable M Data.Semigroup.Foldable
foldMap1DefaultR :: forall t m a. Foldable1 t => Functor t => Semigroup m => (a -> m) -> t a -> m

A default implementation of foldMap1 using foldr1.

Note: when defining a Foldable1 instance, this function is unsafe to use in combination with foldr1Default.

P purescript-foldable-traversable M Data.Semigroup.Foldable
foldMapDefault :: forall i f a m. FoldableWithIndex i f => Monoid m => (a -> m) -> f a -> m

A default implementation of foldMap using foldMapWithIndex

P purescript-foldable-traversable M Data.FoldableWithIndex
foldMapDefaultL :: forall f a m. Foldable f => Monoid m => (a -> m) -> f a -> m

A default implementation of foldMap using foldl.

Note: when defining a Foldable instance, this function is unsafe to use in combination with foldlDefault.

P purescript-foldable-traversable M Data.Foldable
foldMapDefaultR :: forall f a m. Foldable f => Monoid m => (a -> m) -> f a -> m

A default implementation of foldMap using foldr.

Note: when defining a Foldable instance, this function is unsafe to use in combination with foldrDefault.

P purescript-foldable-traversable M Data.Foldable
tracks :: forall w a t. ComonadTraced t w => (a -> t) -> w a -> a

Extracts a value at a relative position which depends on the current value.

P purescript-transformers M Control.Comonad.Traced.Class
asks :: forall e1 e2 w a. ComonadAsk e1 w => (e1 -> e2) -> w a -> e2

Get a value which depends on the environment.

P purescript-transformers M Control.Comonad.Env.Class
peeks :: forall s a w. ComonadStore s w => (s -> s) -> w a -> a

Extract a value from a position which depends on the current position.

P purescript-transformers M Control.Comonad.Store.Class
map :: forall f xs ys fproxy kproxy lproxy. Map f xs ys => fproxy f -> kproxy xs -> lproxy ys
P purescript-typelevel-lists M Type.Data.List
withCtx :: forall ctx html a. AskCtx ctx html => (ctx -> html a) -> html a
P purescript-chameleon-transformers M Chameleon.Transformers.Ctx.Class
getOrAlt :: forall v s r' r l h g f. Alternative h => Cons s v r' r => RowToList r l => RGetOrAlt f g s l r => g s -> f r -> h v
P purescript-struct M Data.Struct.GetOrAlt.GetOrAlt
fromFoldableL :: forall a c f. Foldable f => Consable c => c a -> f a -> c a

Conversion from Foldable to Consable using foldl.

fromFoldableL [] [1,2,3,4]  == [4,3,2,1]
fromFoldableL [0] [1,2,3,4] == [4,3,2,1,0]
P purescript-consable M Data.Consable
fromFoldableR :: forall a c f. Foldable f => Consable c => c a -> f a -> c a

Conversion from Foldable to Consable using foldr.

fromFoldableR [] [1,2,3,4]  == [1,2,3,4]
fromFoldableR [5] [1,2,3,4] == [1,2,3,4,5]
P purescript-consable M Data.Consable
iterate :: forall a u. Unfoldable1 u => (a -> a) -> a -> u a

Create an infinite Unfoldable1 by repeated application of a function to a seed value. Analogous to iterateN, but with no iteration limit.

This should only be used to produce either lazy types (like lazy Lists) or types with truncating Unfoldable1 instances (like Maybe).

P purescript-trivial-unfold M Data.Unfoldable1.Trivial1
liftF :: forall b a f. Applicative f => (a -> b) -> a -> f b
P purescript-simple-parser M Text.Parsing.Util
applyFirst :: forall a b f. Apply f => f a -> f b -> f a

Combine two effectful actions, keeping only the result of the first.

P purescript-prelude M Control.Apply
applySecond :: forall a b f. Apply f => f a -> f b -> f b

Combine two effectful actions, keeping only the result of the second.

P purescript-prelude M Control.Apply
voidRight :: forall f a b. Functor f => a -> f b -> f a

Ignore the return value of a computation, using the specified return value instead.

P purescript-prelude M Data.Functor
alt :: forall f a. Alt f => f a -> f a -> f a
P purescript-control M Control.Alt
choose :: forall m a. MonadGen m => m a -> m a -> m a

Creates a generator that outputs a value chosen from one of two existing existing generators with even probability.

P purescript-gen M Control.Monad.Gen
seek :: forall s a w. ComonadStore s w => s -> w a -> w a

Reposition the focus at the specified position.

P purescript-transformers M Control.Comonad.Store.Class
mulNat :: forall proxy a b c. ProductNat a b c => proxy a -> proxy b -> proxy c
P purescript-typelevel-peano M Type.Data.Peano.Nat.Definition
plus :: forall proxy a b c. SumInt a b c => proxy a -> proxy b -> proxy c
P purescript-typelevel-peano M Type.Data.Peano.Int.Definition
plusNat :: forall proxy a b c. SumNat a b c => proxy a -> proxy b -> proxy c
P purescript-typelevel-peano M Type.Data.Peano.Nat.Definition
powNat :: forall proxy a b c. ExponentiationNat a b c => proxy a -> proxy b -> proxy c
> powNat d2 d3
8 -- : NProxy D8

a raised to the power of b a^b = c

P purescript-typelevel-peano M Type.Data.Peano.Nat.Definition
prod :: forall proxy a b c. ProductInt a b c => proxy a -> proxy b -> proxy c
P purescript-typelevel-peano M Type.Data.Peano.Int.Definition
sampleOnLeft_ :: forall event a b. IsEvent event => event a -> event b -> event b
P purescript-hyrule M FRP.Event.Class
sampleOnRight_ :: forall event a b. IsEvent event => event a -> event b -> event a

Create an Event which samples the latest values from the first event at the times when the second event fires, ignoring the values produced by the second event.

P purescript-hyrule M FRP.Event.Class
sampleOn_ :: forall b a event. IsEvent event => event a -> event b -> event a

Create an Event which samples the latest values from the first event at the times when the second event fires, ignoring the values produced by the second event.

P purescript-event M FRP.Event.Class
applyFirst :: forall v1 v0 f c. HasApply c f => HasConst c => HasMap c f => ObjectOf c v0 => ObjectOf c v1 => ObjectOf c (c v1 v0) => f v0 -> f v1 -> f v0
P purescript-subcategory M Control.Subcategory.Functor.HasApply
applySecond :: forall v1 v0 f c. HasApply c f => HasConst c => HasIdentity c => HasMap c f => ObjectOf c v0 => ObjectOf c v1 => ObjectOf c (c v1 v1) => ObjectOf c (c v0 (c v1 v1)) => ObjectOf c (c (c v1 v1) (c v0 (c v1 v1))) => f v0 -> f v1 -> f v1
P purescript-subcategory M Control.Subcategory.Functor.HasApply
concat :: forall xs ys zs lproxy. Concat xs ys zs => lproxy xs -> lproxy ys -> lproxy zs
P purescript-typelevel-lists M Type.Data.List
drop :: forall n xs ys lproxy iproxy. Drop n xs ys => iproxy n -> lproxy xs -> lproxy ys
P purescript-typelevel-lists M Type.Data.List
filled :: forall m a style. MonadCanvasAction m => CanvasStyle style => style -> m a -> m a

Run a MonadCanvasAction with the given fillStyle, resetting it to the previous value after

P purescript-canvas-action M Graphics.CanvasAction
putCtx :: forall a html ctx. Ctx ctx html => ctx -> html a -> html a
P purescript-chameleon-transformers M Chameleon.Transformers.Ctx.Class
stroked :: forall m a style. MonadCanvasAction m => CanvasStyle style => style -> m a -> m a

Run a MonadCanvasAction with the given strokeStyle, resetting it to the previous value after

P purescript-canvas-action M Graphics.CanvasAction
take :: forall n xs ys lproxy iproxy. Take n xs ys => iproxy n -> lproxy xs -> lproxy ys
P purescript-typelevel-lists M Type.Data.List
tellAccum :: forall acc html a. TellAccum acc html => acc -> html a -> html a
P purescript-chameleon-transformers M Chameleon.Transformers.Accum.Class
zip :: forall x y z lproxy. Zip x y z => lproxy x -> lproxy y -> lproxy z
P purescript-typelevel-lists M Type.Data.List
max1 :: forall f a. Ord1 f => f a -> f a -> f a
P purescript-higher-order M Data.Operator.Ord
min1 :: forall f a. Ord1 f => f a -> f a -> f a
P purescript-higher-order M Data.Operator.Ord
onIntegrityError :: forall m a. MonadError PGError m => m a -> m a -> m a
P purescript-postgresql-client M Database.PostgreSQL.PG
scalarMul :: forall f k. VectorField f k => k -> f k -> f k
  • ∀v in V: one * v == v
  • ∀a b in K, v in V: a * (b .* v) = (a * b) .* v
  • ∀a b in K, v in V:
    • a .* (u + v) = a .* u + a .* v
    • (a + b) .* v = a .* v + b .* v
P purescript-vectorfield M Data.VectorField
alt :: forall f a. Alternative f => f a -> f a -> f a
P purescript-invertible-syntax M Text.Syntax.Classes
cons :: forall t a. Consable t => a -> t a -> t a
P purescript-consable M Data.Consable
cons :: forall f a. Container f => a -> f a -> f a
P purescript-logoot-core M Data.Container
dappend :: forall cnt a. Diff cnt => cnt a -> cnt a -> cnt a
P purescript-difference-containers M Containers.Difference
functorDecorate :: forall b a f. Functor f => Decorate a b => a -> f b -> f a
P purescript-materialize M Materialize.Markup.Decorate
insert :: forall f a. Container f => Ord a => a -> f a -> f a
P purescript-logoot-core M Data.Container
interleave :: forall m a. MonadLogic m => m a -> m a -> m a
P purescript-logic M Control.Monad.Logic.Class
option :: forall a m. Alternative m => a -> m a -> m a
P purescript-parsers M Text.Parsing.Combinators
replaceInArray :: forall a f. HasUuid a => Functor f => a -> f a -> f a
P purescript-liminal M Classes.HasUuid