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# QueueMonoid 

#### class QueueMonoid[A] extends Monoid[Queue[A]]

Source
QueueInstances.scala
Linear Supertypes
Monoid[Queue[A]], Semigroup[Queue[A]], Serializable, Serializable, AnyRef, Any
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2. By Inheritance
Inherited
1. QueueMonoid
2. Monoid
3. Semigroup
4. Serializable
5. Serializable
6. AnyRef
7. Any
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Visibility
1. Public
2. All

### Instance Constructors

1. new QueueMonoid()

### Value Members

1. final def !=(arg0: Any)
Definition Classes
AnyRef → Any
2. final def ##(): Int
Definition Classes
AnyRef → Any
3. final def ==(arg0: Any)
Definition Classes
AnyRef → Any
4. final def asInstanceOf[T0]: T0
Definition Classes
Any
5. def clone()
Attributes
protected[lang]
Definition Classes
AnyRef
Annotations
@throws( ... ) @native() @IntrinsicCandidate()
6. def combine(x: Queue[A], y: Queue[A]): Queue[A]

Associative operation which combines two values.

Associative operation which combines two values.

Example:

```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)```
Definition Classes
QueueMonoidSemigroup
7. def combineAll(xs: IterableOnce[Queue[A]]): Queue[A]

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 = ""```
Definition Classes
QueueMonoidMonoid
8. def combineAllOption(as: IterableOnce[Queue[A]]): Option[Queue[A]]

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

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

If the sequence is empty, returns None. Otherwise, returns Some(total).

Example:

```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```
Definition Classes
MonoidSemigroup
9. def combineN(x: Queue[A], n: Int): Queue[A]

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
QueueMonoidMonoidSemigroup
10. def empty: Queue[A]

Return the identity element for this monoid.

Return the identity element for this monoid.

Example:

```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```
Definition Classes
QueueMonoidMonoid
11. final def eq(arg0: AnyRef)
Definition Classes
AnyRef
12. def equals(arg0: Any)
Definition Classes
AnyRef → Any
13. final def getClass(): Class[_]
Definition Classes
AnyRef → Any
Annotations
@native() @IntrinsicCandidate()
14. def hashCode(): Int
Definition Classes
AnyRef → Any
Annotations
@native() @IntrinsicCandidate()
15. def intercalate(middle: Queue[A]): Semigroup[Queue[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.

Definition Classes
Semigroup
16. def isEmpty(a: Queue[A])(implicit ev: Eq[Queue[A]])

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```
Definition Classes
Monoid
17. final def isInstanceOf[T0]
Definition Classes
Any
18. final def ne(arg0: AnyRef)
Definition Classes
AnyRef
19. final def notify(): Unit
Definition Classes
AnyRef
Annotations
@native() @IntrinsicCandidate()
20. final def notifyAll(): Unit
Definition Classes
AnyRef
Annotations
@native() @IntrinsicCandidate()
21. def repeatedCombineN(a: Queue[A], n: Int): Queue[A]

Return `a` combined with itself more than once.

Return `a` combined with itself more than once.

Attributes
protected[this]
Definition Classes
Semigroup
22. def reverse: Monoid[Queue[A]]

return a semigroup that reverses the order so combine(a, b) == reverse.combine(b, a)

return a semigroup that reverses the order so combine(a, b) == reverse.combine(b, a)

Definition Classes
MonoidSemigroup
23. final def synchronized[T0](arg0: ⇒ T0): T0
Definition Classes
AnyRef
24. def toString(): String
Definition Classes
AnyRef → Any
25. final def wait(arg0: Long, arg1: Int): Unit
Definition Classes
AnyRef
Annotations
@throws( ... )
26. final def wait(arg0: Long): Unit
Definition Classes
AnyRef
Annotations
@throws( ... ) @native()
27. final def wait(): Unit
Definition Classes
AnyRef
Annotations
@throws( ... )

### Deprecated Value Members

1. def finalize(): Unit
Attributes
protected[lang]
Definition Classes
AnyRef
Annotations
@throws( classOf[java.lang.Throwable] ) @Deprecated
Deprecated