Function1Group

implicit abstract def B: Group[B]

final def !=(arg0: Any): Boolean

final def ##(): Int

final def ==(arg0: Any): Boolean

final def asInstanceOf[T0]: T0

def clone(): AnyRef

def combine(x: (A) ⇒ B, y: (A) ⇒ B): (A) ⇒ B

Associative operation which combines two values.

scala> import cats.kernel.instances.string._
scala> import cats.kernel.instances.int._
scala> import cats.kernel.instances.option._

scala> Semigroup[String].combine("Hello ", "World!")
res0: String = Hello World!

scala> Semigroup[Option[Int]].combine(None, Some(1))
res1: Option[Int] = Some(1)

def combineAll(as: TraversableOnce[(A) ⇒ B]): (A) ⇒ B

Given a sequence of as, sum them using the monoid and return the total.

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 = ""

def combineAllOption(as: TraversableOnce[(A) ⇒ B]): Option[(A) ⇒ B]

Given a sequence of as, combine them and return the total.

scala> import cats.kernel.instances.string._

scala> Semigroup[String].combineAllOption(List("One ", "Two ", "Three"))
res0: Option[String] = Some(One Two Three)

scala> Semigroup[String].combineAllOption(List.empty)
res1: Option[String] = None

def combineN(a: (A) ⇒ B, n: Int): (A) ⇒ B

Return a appended to itself n times.

val empty: (A) ⇒ B

Return the identity element for this monoid.

scala> import cats.kernel.instances.int._
scala> import cats.kernel.instances.string._

scala> Monoid[String].empty
res0: String = ""

scala> Monoid[Int].empty
res1: Int = 0

final def eq(arg0: AnyRef): Boolean

def equals(arg0: Any): Boolean

def finalize(): Unit

final def getClass(): Class[_]

def hashCode(): Int

def inverse(x: (A) ⇒ B): (A) ⇒ B

Find the inverse of a.

scala> import cats.kernel.instances.int._

scala> Group[Int].inverse(5)
res0: Int = -5

def isEmpty(a: (A) ⇒ B)(implicit ev: Eq[(A) ⇒ B]): Boolean

Tests if a is the identity.

scala> import cats.kernel.instances.string._

scala> Monoid[String].isEmpty("")
res0: Boolean = true

scala> Monoid[String].isEmpty("something")
res1: Boolean = false

final def isInstanceOf[T0]: Boolean

final def ne(arg0: AnyRef): Boolean

final def notify(): Unit

final def notifyAll(): Unit

def remove(a: (A) ⇒ B, b: (A) ⇒ B): (A) ⇒ B

Remove the element b from a.

scala> import cats.kernel.instances.int._

scala> Group[Int].remove(5, 2)
res0: Int = 3

def repeatedCombineN(a: (A) ⇒ B, n: Int): (A) ⇒ B

Return a combined with itself more than once.

final def synchronized[T0](arg0: ⇒ T0): T0

def toString(): String

final def wait(): Unit

final def wait(arg0: Long, arg1: Int): Unit

final def wait(arg0: Long): Unit