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Scala 3/scala/scala.collection/scala.collection.immutable/HashSet

HashSet

scala.collection.immutable.HashSet
See theHashSet companion class
object HashSet extends IterableFactory[HashSet]

This object provides a set of operations to create immutable.HashSet values.

Attributes

Companion
class
Source
HashSet.scala
Graph
Supertypes
trait Pure
trait Serializable
class Object
trait Matchable
class Any
Show all
Self type
HashSet.type

Members list

Value members

Concrete methods

def empty[A]: HashSet[A]

An empty immutable champ hash set.

An empty immutable champ hash set.

Type parameters

A

the type of the immutable champ hash set's elements

Attributes

Returns

an empty immutable champ hash set of type CC[A]

Source
HashSet.scala
def from[A](source: IterableOnce[A]^): HashSet[A]

Creates a target immutable champ hash set from an existing source collection

Creates a target immutable champ hash set from an existing source collection

Type parameters

A

the type of the collection’s elements

Value parameters

source

Source collection

Attributes

Returns

a new immutable champ hash set with the elements of source

Source
HashSet.scala
def newBuilder[A]: ReusableBuilder[A, HashSet[A]]

Creates a new Builder which can be reused after calling result() without an intermediate call to clear() in order to build multiple related results.

Creates a new Builder which can be reused after calling result() without an intermediate call to clear() in order to build multiple related results.

Type parameters

A

the element type of the set to build

Attributes

Returns

a new reusable builder that produces a HashSet[A]

Source
HashSet.scala

Inherited methods

def apply[A](elems: A*): HashSet[A]

Creates a immutable champ hash set with the specified elements.

Creates a immutable champ hash set with the specified elements.

Type parameters

A

the type of the immutable champ hash set's elements

Value parameters

elems

the elements of the created immutable champ hash set

Attributes

Returns

a new immutable champ hash set with elements elems

Inherited from:
IterableFactory
Source
Factory.scala
def concat[A](xss: Iterable[A]*): HashSet[A]

Concatenates all argument collections into a single immutable champ hash set.

Concatenates all argument collections into a single immutable champ hash set.

Type parameters

A

the element type of the immutable champ hash set

Value parameters

xss

the collections that are to be concatenated.

Attributes

Returns

the concatenation of all the collections.

Inherited from:
IterableFactory
Source
Factory.scala
def fill[A](n1: Int, n2: Int, n3: Int, n4: Int, n5: Int)(elem: => A): HashSet[HashSet[HashSet[HashSet[HashSet[A]]]]]

Produces a five-dimensional immutable champ hash set containing the results of some element computation a number of times.

Produces a five-dimensional immutable champ hash set containing the results of some element computation a number of times.

Type parameters

A

the element type of the immutable champ hash set

Value parameters

elem

the element computation

n1

the number of elements in the 1st dimension

n2

the number of elements in the 2nd dimension

n3

the number of elements in the 3rd dimension

n4

the number of elements in the 4th dimension

n5

the number of elements in the 5th dimension

Attributes

Returns

A immutable champ hash set that contains the results of n1 x n2 x n3 x n4 x n5 evaluations of elem.

Inherited from:
IterableFactory
Source
Factory.scala
def fill[A](n1: Int, n2: Int, n3: Int, n4: Int)(elem: => A): HashSet[HashSet[HashSet[HashSet[A]]]]

Produces a four-dimensional immutable champ hash set containing the results of some element computation a number of times.

Produces a four-dimensional immutable champ hash set containing the results of some element computation a number of times.

Type parameters

A

the element type of the immutable champ hash set

Value parameters

elem

the element computation

n1

the number of elements in the 1st dimension

n2

the number of elements in the 2nd dimension

n3

the number of elements in the 3rd dimension

n4

the number of elements in the 4th dimension

Attributes

Returns

A immutable champ hash set that contains the results of n1 x n2 x n3 x n4 evaluations of elem.

Inherited from:
IterableFactory
Source
Factory.scala
def fill[A](n1: Int, n2: Int, n3: Int)(elem: => A): HashSet[HashSet[HashSet[A]]]

Produces a three-dimensional immutable champ hash set containing the results of some element computation a number of times.

Produces a three-dimensional immutable champ hash set containing the results of some element computation a number of times.

Type parameters

A

the element type of the immutable champ hash set

Value parameters

elem

the element computation

n1

the number of elements in the 1st dimension

n2

the number of elements in the 2nd dimension

n3

the number of elements in the 3rd dimension

Attributes

Returns

A immutable champ hash set that contains the results of n1 x n2 x n3 evaluations of elem.

Inherited from:
IterableFactory
Source
Factory.scala
def fill[A](n1: Int, n2: Int)(elem: => A): HashSet[HashSet[A]]

Produces a two-dimensional immutable champ hash set containing the results of some element computation a number of times.

Produces a two-dimensional immutable champ hash set containing the results of some element computation a number of times.

Type parameters

A

the element type of the immutable champ hash set

Value parameters

elem

the element computation

n1

the number of elements in the 1st dimension

n2

the number of elements in the 2nd dimension

Attributes

Returns

A immutable champ hash set that contains the results of n1 x n2 evaluations of elem.

Inherited from:
IterableFactory
Source
Factory.scala
def fill[A](n: Int)(elem: => A): HashSet[A]

Produces a immutable champ hash set containing the results of some element computation a number of times.

Produces a immutable champ hash set containing the results of some element computation a number of times.

Type parameters

A

the element type of the immutable champ hash set

Value parameters

elem

the element computation

n

the number of elements contained in the immutable champ hash set.

Attributes

Returns

A immutable champ hash set that contains the results of n evaluations of elem.

Inherited from:
IterableFactory
Source
Factory.scala
def iterate[A](start: A, len: Int)(f: A => A): HashSet[A]

Produces a immutable champ hash set containing repeated applications of a function to a start value.

Produces a immutable champ hash set containing repeated applications of a function to a start value.

Type parameters

A

the element type of the immutable champ hash set

Value parameters

f

the function that's repeatedly applied

len

the number of elements contained in the immutable champ hash set

start

the start value of the immutable champ hash set

Attributes

Returns

a immutable champ hash set with len values in the sequence start, f(start), f(f(start)), ...

Inherited from:
IterableFactory
Source
Factory.scala
def range[A : Integral](start: A, end: A, step: A): HashSet[A]

Produces a immutable champ hash set containing equally spaced values in some integer interval.

Produces a immutable champ hash set containing equally spaced values in some integer interval.

Type parameters

A

the element type of the immutable champ hash set, which must have an Integral instance

Value parameters

end

the end value of the immutable champ hash set (the first value NOT contained)

start

the start value of the immutable champ hash set

step

the difference between successive elements of the immutable champ hash set (must be positive or negative)

Attributes

Returns

a immutable champ hash set with values start, start + step, ... up to, but excluding end

Inherited from:
IterableFactory
Source
Factory.scala
def range[A : Integral](start: A, end: A): HashSet[A]

Produces a immutable champ hash set containing a sequence of increasing of integers.

Produces a immutable champ hash set containing a sequence of increasing of integers.

Type parameters

A

the element type of the immutable champ hash set, which must have an Integral instance

Value parameters

end

the end value of the immutable champ hash set (the first value NOT contained)

start

the first element of the immutable champ hash set

Attributes

Returns

a immutable champ hash set with values start, start + 1, ..., end - 1

Inherited from:
IterableFactory
Source
Factory.scala
def tabulate[A](n1: Int, n2: Int, n3: Int, n4: Int, n5: Int)(f: (Int, Int, Int, Int, Int) => A): HashSet[HashSet[HashSet[HashSet[HashSet[A]]]]]

Produces a five-dimensional immutable champ hash set containing values of a given function over ranges of integer values starting from 0.

Produces a five-dimensional immutable champ hash set containing values of a given function over ranges of integer values starting from 0.

Type parameters

A

the element type of the immutable champ hash set

Value parameters

f

The function computing element values

n1

the number of elements in the 1st dimension

n2

the number of elements in the 2nd dimension

n3

the number of elements in the 3rd dimension

n4

the number of elements in the 4th dimension

n5

the number of elements in the 5th dimension

Attributes

Returns

A immutable champ hash set consisting of elements f(i1, i2, i3, i4, i5) for 0 <= i1 < n1, 0 <= i2 < n2, 0 <= i3 < n3, 0 <= i4 < n4, and 0 <= i5 < n5.

Inherited from:
IterableFactory
Source
Factory.scala
def tabulate[A](n1: Int, n2: Int, n3: Int, n4: Int)(f: (Int, Int, Int, Int) => A): HashSet[HashSet[HashSet[HashSet[A]]]]

Produces a four-dimensional immutable champ hash set containing values of a given function over ranges of integer values starting from 0.

Produces a four-dimensional immutable champ hash set containing values of a given function over ranges of integer values starting from 0.

Type parameters

A

the element type of the immutable champ hash set

Value parameters

f

The function computing element values

n1

the number of elements in the 1st dimension

n2

the number of elements in the 2nd dimension

n3

the number of elements in the 3rd dimension

n4

the number of elements in the 4th dimension

Attributes

Returns

A immutable champ hash set consisting of elements f(i1, i2, i3, i4) for 0 <= i1 < n1, 0 <= i2 < n2, 0 <= i3 < n3, and 0 <= i4 < n4.

Inherited from:
IterableFactory
Source
Factory.scala
def tabulate[A](n1: Int, n2: Int, n3: Int)(f: (Int, Int, Int) => A): HashSet[HashSet[HashSet[A]]]

Produces a three-dimensional immutable champ hash set containing values of a given function over ranges of integer values starting from 0.

Produces a three-dimensional immutable champ hash set containing values of a given function over ranges of integer values starting from 0.

Type parameters

A

the element type of the immutable champ hash set

Value parameters

f

The function computing element values

n1

the number of elements in the 1st dimension

n2

the number of elements in the 2nd dimension

n3

the number of elements in the 3rd dimension

Attributes

Returns

A immutable champ hash set consisting of elements f(i1, i2, i3) for 0 <= i1 < n1, 0 <= i2 < n2, and 0 <= i3 < n3.

Inherited from:
IterableFactory
Source
Factory.scala
def tabulate[A](n1: Int, n2: Int)(f: (Int, Int) => A): HashSet[HashSet[A]]

Produces a two-dimensional immutable champ hash set containing values of a given function over ranges of integer values starting from 0.

Produces a two-dimensional immutable champ hash set containing values of a given function over ranges of integer values starting from 0.

Type parameters

A

the element type of the immutable champ hash set

Value parameters

f

The function computing element values

n1

the number of elements in the 1st dimension

n2

the number of elements in the 2nd dimension

Attributes

Returns

A immutable champ hash set consisting of elements f(i1, i2) for 0 <= i1 < n1 and 0 <= i2 < n2.

Inherited from:
IterableFactory
Source
Factory.scala
def tabulate[A](n: Int)(f: Int => A): HashSet[A]

Produces a immutable champ hash set containing values of a given function over a range of integer values starting from 0.

Produces a immutable champ hash set containing values of a given function over a range of integer values starting from 0.

Type parameters

A

the element type of the immutable champ hash set

Value parameters

f

The function computing element values

n

The number of elements in the immutable champ hash set

Attributes

Returns

A immutable champ hash set consisting of elements f(0), ..., f(n -1)

Inherited from:
IterableFactory
Source
Factory.scala
def unfold[A, S](init: S)(f: S => Option[(A, S)]): HashSet[A]

Produces a immutable champ hash set that uses a function f to produce elements of type A and update an internal state of type S.

Produces a immutable champ hash set that uses a function f to produce elements of type A and update an internal state of type S.

Type parameters

A

Type of the elements

S

Type of the internal state

Value parameters

f

Computes the next element (or returns None to signal the end of the collection)

init

State initial value

Attributes

Returns

a immutable champ hash set that produces elements using f until f returns None

Inherited from:
IterableFactory
Source
Factory.scala

Implicits

Inherited implicits

implicit def iterableFactory[A]: Factory[A, HashSet[A]]

Attributes

Inherited from:
IterableFactory
Source
Factory.scala
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Copyright (c) 2002-2026, LAMP/EPFL