Cats kernel/cats.kernel.instances/ListMonoid

ListMonoid

class ListMonoid[A] extends Monoid[List[A]]
trait Monoid[List[A]]
trait Semigroup[List[A]]
trait Serializable
class Object
trait Matchable
class Any

Value members

Concrete methods

def combine(x: List[A], y: List[A]): List[A]
override def combineAll(xs: IterableOnce[List[A]]): List[A]
Definition Classes
override def combineN(x: List[A], n: Int): List[A]
Definition Classes
def empty: List[A]
override def reverse: Monoid[List[A]]
Definition Classes

Inherited methods

override def combineAllOption(as: IterableOnce[List[A]]): Option[List[A]]
Definition Classes
Inherited from
Monoid
def intercalate(middle: List[A]): Semigroup[List[A]]

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
def isEmpty(a: List[A])(ev: Eq[List[A]]): Boolean

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