Cats core
Cats core
cats
Align
Align
ops
Ops
AllOps
ToAlignOps
nonInheritedOps
Alternative
Alternative
ops
Ops
AllOps
ToAlternativeOps
nonInheritedOps
Always
Always
Applicative
Applicative
ops
Ops
AllOps
ToApplicativeOps
nonInheritedOps
ApplicativeError
ApplicativeError
ApplicativeThrow
Apply
Apply
ops
Ops
AllOps
ToApplyOps
nonInheritedOps
ApplyArityFunctions
Bifoldable
Bifoldable
ops
Ops
AllOps
ToBifoldableOps
nonInheritedOps
Bifunctor
Bifunctor
ops
Ops
AllOps
ToBifunctorOps
nonInheritedOps
Bimonad
Bimonad
ops
Ops
AllOps
ToBimonadOps
nonInheritedOps
Bitraverse
Bitraverse
ops
Ops
AllOps
ToBitraverseOps
nonInheritedOps
CoflatMap
CoflatMap
ops
Ops
AllOps
ToCoflatMapOps
nonInheritedOps
CommutativeApplicative
CommutativeApplicative
ops
Ops
AllOps
ToCommutativeApplicativeOps
nonInheritedOps
CommutativeApply
CommutativeApply
ops
Ops
AllOps
ToCommutativeApplyOps
nonInheritedOps
CommutativeFlatMap
CommutativeFlatMap
ops
Ops
AllOps
ToCommutativeFlatMapOps
nonInheritedOps
CommutativeMonad
CommutativeMonad
ops
Ops
AllOps
ToCommutativeMonadOps
nonInheritedOps
Comonad
Comonad
ops
Ops
AllOps
ToComonadOps
nonInheritedOps
Contravariant
Contravariant
ops
Ops
AllOps
ToContravariantOps
nonInheritedOps
ContravariantMonoidal
ContravariantMonoidal
ops
Ops
AllOps
ToContravariantMonoidalOps
nonInheritedOps
ContravariantSemigroupal
ContravariantSemigroupal
ops
Ops
AllOps
ToContravariantSemigroupalOps
nonInheritedOps
Defer
Defer
Distributive
Distributive
ops
Ops
AllOps
ToDistributiveOps
nonInheritedOps
Eval
Eval
Leaf
Defer
FlatMap
EvalGroup
EvalMonoid
EvalSemigroup
FlatMap
FlatMap
ops
Ops
AllOps
ToFlatMapOps
nonInheritedOps
Foldable
Foldable
ops
Ops
AllOps
ToFoldableOps
nonInheritedOps
FoldableNFunctions
Functor
Functor
ops
Ops
AllOps
ToFunctorOps
nonInheritedOps
FunctorFilter
FunctorFilter
ops
Ops
AllOps
ToFunctorFilterOps
nonInheritedOps
FunctorFilterInstances0
Inject
Inject
InjectK
InjectK
Invariant
Invariant
ops
Ops
AllOps
ToInvariantOps
nonInheritedOps
InvariantMonoidal
InvariantMonoidal
ops
Ops
AllOps
ToInvariantMonoidalOps
nonInheritedOps
InvariantSemigroupal
InvariantSemigroupal
ops
Ops
AllOps
ToInvariantSemigroupalOps
nonInheritedOps
Later
Later
Monad
Monad
ops
Ops
AllOps
ToMonadOps
nonInheritedOps
MonadError
MonadError
MonadThrow
MonoidK
MonoidK
ops
Ops
AllOps
ToMonoidKOps
nonInheritedOps
NonEmptyParallel
NonEmptyParallel
NonEmptyReducible
NonEmptyTraverse
NonEmptyTraverse
ops
Ops
AllOps
ToNonEmptyTraverseOps
nonInheritedOps
NotNull
NotNull
Now
Parallel
Parallel
ParallelArityFunctions
ParallelArityFunctions2
Reducible
Reducible
ops
Ops
AllOps
ToReducibleOps
nonInheritedOps
Representable
Representable
SemigroupK
SemigroupK
ops
Ops
AllOps
ToSemigroupKOps
nonInheritedOps
SemigroupKInstances0
Semigroupal
Semigroupal
ops
Ops
AllOps
ToSemigroupalOps
nonInheritedOps
SemigroupalArityFunctions
Show
Show
ContravariantShow
Ops
ToShowOps
Shown
Shown
ShowInterpolator
StackSafeMonad
Traverse
Traverse
ops
Ops
AllOps
ToTraverseOps
nonInheritedOps
TraverseFilter
TraverseFilter
ops
Ops
AllOps
ToTraverseFilterOps
nonInheritedOps
UnorderedFoldable
UnorderedFoldable
ops
Ops
AllOps
ToUnorderedFoldableOps
nonInheritedOps
UnorderedTraverse
UnorderedTraverse
ops
Ops
AllOps
ToUnorderedTraverseOps
nonInheritedOps
implicits
cats.arrow
Arrow
Arrow
ops
Ops
AllOps
ToArrowOps
nonInheritedOps
ArrowChoice
ArrowChoice
ops
Ops
AllOps
ToArrowChoiceOps
nonInheritedOps
Category
Category
ops
Ops
AllOps
ToCategoryOps
nonInheritedOps
Choice
Choice
ops
Ops
AllOps
ToChoiceOps
nonInheritedOps
CommutativeArrow
CommutativeArrow
ops
Ops
AllOps
ToCommutativeArrowOps
nonInheritedOps
Compose
Compose
ops
Ops
AllOps
ToComposeOps
nonInheritedOps
FunctionK
FunctionK
Profunctor
Profunctor
ops
Ops
AllOps
ToProfunctorOps
nonInheritedOps
Strong
Strong
ops
Ops
AllOps
ToStrongOps
nonInheritedOps
cats.conversions
AllConversions
VarianceConversions
all
variance
cats.data
AndThen
AndThen
AppFunc
AppFunc
Binested
Binested
BinestedBifoldable
BinestedBitraverse
BinestedInstances
Chain
Chain
==:
:==
Cokleisli
Cokleisli
Const
Const
Cont
ContT
ContT
EitherK
EitherK
EitherKLeft
EitherKRight
EitherT
EitherT
Func
Func
IdT
IdT
IndexedReaderWriterStateT
IndexedReaderWriterStateT
IndexedState
IndexedStateT
IndexedStateT
Ior
Ior
Left
Right
Both
IorT
IorT
Kleisli
Kleisli
KleisliFromFunctionPartiallyApplied
Nested
Nested
NonEmptyChainOps
NonEmptyLazyList
NonEmptyLazyListOps
NonEmptyList
NonEmptyList
ZipNonEmptyList
ZipNonEmptyList
NonEmptyMapOps
NonEmptySeq
NonEmptySeq
ZipNonEmptySeq
ZipNonEmptySeq
NonEmptySetOps
NonEmptyVector
NonEmptyVector
ZipNonEmptyVector
ZipNonEmptyVector
OneAnd
OneAnd
Op
Op
OptionT
OptionT
Reader
ReaderWriterState
ReaderWriterStateT
RepresentableStore
RepresentableStore
RepresentableStoreT
RepresentableStoreT
RepresentableStoreTInstances1
RepresentableStoreTInstances2
State
StateT
Store
StoreT
Tuple2K
Tuple2K
Validated
Validated
Valid
Invalid
Writer
WriterT
WriterT
ZipLazyList
ZipLazyList
ZipList
ZipList
ZipSeq
ZipSeq
ZipStream
ZipStream
ZipVector
ZipVector
cats.evidence
As
As
AsInstances
Is
Is
IsInstances
cats.instances
AllInstances
AllInstancesBinCompat
AllInstancesBinCompat0
AllInstancesBinCompat1
AllInstancesBinCompat2
AllInstancesBinCompat3
AllInstancesBinCompat4
AllInstancesBinCompat5
AllInstancesBinCompat6
AllInstancesBinCompat7
AllInstancesBinCompat8
AnyValInstances
ArraySeqInstances
BigDecimalInstances
BigIntInstances
BitSetInstances
BooleanInstances
ByteInstances
CharInstances
DoubleInstances
DurationInstances
EitherInstances
EqInstances
EquivInstances
FiniteDurationInstances
FloatInstances
FunctionInstances
FutureInstances
HashInstances
IntInstances
InvariantInstances
InvariantMonoidalInstances
LazyListInstances
ListInstances
LongInstances
MapInstances
OptionInstances
OrderInstances
OrderingInstances
ParallelInstances
PartialFunctionInstances
PartialOrderInstances
PartialOrderingInstances
QueueInstances
SeqInstances
SetInstances
ShortInstances
SortedMapCommutativeMonoid
SortedMapEq
SortedMapHash
SortedMapInstances
SortedMapMonoid
SortedSetHash
SortedSetInstances
SortedSetOrder
SortedSetSemilattice
StreamInstances
StringInstances
SymbolInstances
TailRecInstances
TryInstances
TupleInstances
UUIDInstances
UnitInstances
VectorInstances
all
arraySeq
bigDecimal
bigInt
bitSet
boolean
byte
char
double
duration
either
eq
equiv
finiteDuration
float
function
future
int
invariant
lazyList
list
long
map
option
order
ordering
parallel
partialFunction
partialOrder
partialOrdering
queue
seq
set
short
sortedMap
sortedSet
stream
string
tailRec
try_
tuple
unit
uuid
vector
cats.instances.symbol
cats.syntax
AlignSyntax
AllSyntax
AllSyntaxBinCompat
AllSyntaxBinCompat0
AllSyntaxBinCompat1
AllSyntaxBinCompat2
AllSyntaxBinCompat3
AllSyntaxBinCompat4
AllSyntaxBinCompat5
AllSyntaxBinCompat6
AllSyntaxBinCompat7
AlternativeSyntax
ApplicativeErrorIdOps
ApplicativeErrorOps
ApplicativeErrorSyntax
ApplicativeIdOps
ApplicativeOps
ApplicativeSyntax
ApplyOps
ApplySyntax
ArrowChoiceSyntax
ArrowSyntax
BifoldableSyntax
BifunctorSyntax
BinestedIdOps
BinestedSyntax
BitraverseOps
BitraverseSyntax
ChoiceSyntax
CoflatMapSyntax
ComonadSyntax
ComposeSyntax
ContravariantMonoidalOps
ContravariantMonoidalSyntax
ContravariantSemigroupalSyntax
ContravariantSyntax
DistributiveOps
DistributiveSyntax
EitherIdOps
EitherKOps
EitherKSyntax
EitherObjectOps
EitherOps
EitherSyntax
EitherSyntax
EqOps
EqSyntax
FlatMapIdOps
FlatMapOps
FlatMapOptionOps
FlatMapOptionSyntax
FlatMapSyntax
FlattenOps
FoldableOps
FoldableOps0
FoldableSyntax
Function1Syntax
Function1Ops
Function1FlatMapOps
FunctorFilterSyntax
FunctorSyntax
FunctorTuple2Ops
GroupOps
GroupSyntax
GuardOps
HashOps
HashSyntax
IfApplyOps
IfMOps
IndexOps
InvariantSyntax
IorIdOps
IorSyntax
LeftNestedBitraverseOps
LeftOps
ListOps
ListSyntax
MonadErrorOps
MonadErrorRethrowOps
MonadErrorSyntax
MonadIdOps
MonadOps
MonadSyntax
MonoidOps
MonoidSyntax
NestedBitraverseOps
NestedFoldableOps
NestedIdOps
NestedReducibleOps
NestedSyntax
NonEmptyTraverseSyntax
OptionIdOps
OptionOps
OptionOps
OptionSyntax
OrderOps
OrderSyntax
ParallelApOps
ParallelApplyOps
ParallelApplySyntax
ParallelBisequenceOps
ParallelBitraverseOps
ParallelBitraverseSyntax
ParallelFlatSequenceOps
ParallelFlatSequenceOps1
ParallelFlatSyntax
ParallelFlatTraversableOps
ParallelFlatTraversableOps1
ParallelFoldMapAOps
ParallelFoldMapASyntax
ParallelLeftSequenceOps
ParallelLeftTraverseOps
ParallelSequenceFilterOps
ParallelSequenceOps
ParallelSequenceOps1
ParallelSequence_Ops
ParallelSyntax
ParallelTraversableOps
ParallelTraversableOps1
ParallelTraversable_Ops
ParallelTraverseFilterOps
ParallelTraverseFilterSyntax
ParallelTraverseSyntax
ParallelUnorderedFlatSequenceOps
ParallelUnorderedSequenceOps
ParallelUnorderedTraverseOps
ParallelUnorderedTraverseSyntax
PartialOrderOps
PartialOrderSyntax
ProfunctorSyntax
ReducibleOps0
ReducibleSyntax
RepresentableSyntax
RightOps
SemigroupKSyntax
SemigroupOps
SemigroupSyntax
SemigroupalOps
SemigroupalSyntax
SeparateOps
SeqOps
SeqSyntax
SequenceFilterOps
SetOps
SetSyntax
ShowSyntax
StrongSyntax
TabulateOps
TraverseFilterSyntax
TraverseSyntax
TryOps
TrySyntax
TupleParallelSyntax
TupleSemigroupalSyntax
UniteOps
UnorderedFoldableOps
UnorderedFoldableSyntax
UnorderedTraverseSyntax
ValidatedExtension
ValidatedExtensionSyntax
ValidatedIdSyntax
ValidatedSyntax
VectorOps
VectorSyntax
WriterIdSyntax
WriterSyntax
align
all
alternative
applicative
applicativeError
apply
arrow
arrowChoice
bifoldable
bifunctor
binested
bitraverse
choice
coflatMap
comonad
compose
contravariant
contravariantMonoidal
contravariantSemigroupal
distributive
either
eitherK
eq
flatMap
foldable
functor
functorFilter
group
hash
invariant
ior
list
monad
monadError
monoid
nested
nonEmptyTraverse
option
order
parallel
partialOrder
profunctor
reducible
representable
semigroup
semigroupal
semigroupk
seq
set
show
strong
traverse
traverseFilter
try_
unorderedFoldable
unorderedTraverse
validated
vector
writer
Cats core
/
cats.syntax
/
WriterIdSyntax
WriterIdSyntax
final
class
WriterIdSyntax
[A](a:
A
) extends
AnyVal
Graph
Supertypes
class
AnyVal
trait
Matchable
class
Any
Value members
Value members
Concrete methods
def
tell
:
Writer
[
A
,
Unit
]
def
writer
[W](w: W):
Writer
[W,
A
]