HashMapMonoid
class HashMapMonoid[K, V](implicit evidence$1: Hash[K], V: Semigroup[V]) extends Monoid[HashMap[K, V]]
- Source:
- HashMap.scala
Value members
Concrete methods
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
- Source:
- Monoid.scala
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
- Inherited from:
- =0")elseif(n.==(0))Monoid.this.emptyelseMonoid.this.repeatedCombineN(a,n)">Monoid
- Source:
- Monoid.scala
Between each pair of elements insert middle This name matches the term used in Foldable and Reducible and a similar Haskell function.
Between each pair of elements insert middle This name matches the term used in Foldable and Reducible and a similar Haskell function.
- Inherited from:
- Semigroup
- Source:
- Semigroup.scala
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
- Source:
- Monoid.scala