ShortGroup
trait CommutativeGroup[Short]
trait CommutativeMonoid[Short]
trait CommutativeSemigroup[Short]
trait Group[Short]
trait Monoid[Short]
trait Semigroup[Short]
trait Serializable
class Object
trait Matchable
class Any
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
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