SortedMapCommutativeMonoid
@deprecated("Use cats.kernel.instances.SortedMapCommutativeMonoid", "2.0.0-RC2") class SortedMapCommutativeMonoid[K, V](V: CommutativeSemigroup[V], O: Order[K]) extends SortedMapMonoid[K, V] with CommutativeMonoid[SortedMap[K, V]]
- Deprecated
trait CommutativeMonoid[SortedMap[K, V]]
trait CommutativeSemigroup[SortedMap[K, V]]
class SortedMapMonoid[K, V]
trait Monoid[SortedMap[K, V]]
class SortedMapSemigroup[K, V]
trait Semigroup[SortedMap[K, V]]
trait Serializable
class Object
trait Matchable
class Any
Value members
Inherited methods
Given a sequence of as, sum them using the monoid and return the total.
Given a sequence of as, sum them using the monoid and return the total.
Example:
scala> import cats.kernel.instances.string._
scala> Monoid[String].combineAll(List("One ", "Two ", "Three"))
res0: String = One Two Three
scala> Monoid[String].combineAll(List.empty)
res1: String = ""
- Inherited from
- Monoid
Return a appended to itself n times.
Return a appended to itself n times.
Example:
scala> import cats.kernel.instances.string._
scala> Monoid[String].combineN("ha", 3)
res0: String = hahaha
scala> Monoid[String].combineN("ha", 0)
res1: String = ""
- Definition Classes
- Monoid -> Semigroup
- Inherited from
- Monoid
Tests if a is the identity.
Tests if a is the identity.
Example:
scala> import cats.kernel.instances.string._
scala> Monoid[String].isEmpty("")
res0: Boolean = true
scala> Monoid[String].isEmpty("something")
res1: Boolean = false
- Inherited from
- Monoid