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Scala 3/scala/scala.collection/scala.collection.mutable/HashSet

HashSet

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

This object provides a set of operations to create mutable.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

final def defaultInitialCapacity: Int

The default initial capacity for the hash table.

The default initial capacity for the hash table.

Attributes

Source
HashSet.scala
final def defaultLoadFactor: Double

The default load factor for the hash table.

The default load factor for the hash table.

Attributes

Source
HashSet.scala
def empty[A]: HashSet[A]

An empty mutable hash set.

An empty mutable hash set.

Type parameters

A

the type of the mutable hash set's elements

Attributes

Source
HashSet.scala
def from[B](it: IterableOnce[B]^): HashSet[B]

Creates a target mutable hash set from an existing source collection

Creates a target mutable 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 mutable hash set with the elements of source

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

Type parameters

A

the type of the mutable hash set’s elements

Attributes

Returns

a builder for mutable.HashSet objects.

Source
HashSet.scala
def newBuilder[A](initialCapacity: Int, loadFactor: Double): Builder[A, HashSet[A]]

Attributes

Source
HashSet.scala

Inherited methods

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

Creates a mutable hash set with the specified elements.

Creates a mutable hash set with the specified elements.

Type parameters

A

the type of the mutable hash set's elements

Value parameters

elems

the elements of the created mutable hash set

Attributes

Returns

a new mutable 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 mutable hash set.

Concatenates all argument collections into a single mutable hash set.

Type parameters

A

the element type of the mutable 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 mutable hash set containing the results of some element computation a number of times.

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

Type parameters

A

the element type of the mutable 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 mutable 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 mutable hash set containing the results of some element computation a number of times.

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

Type parameters

A

the element type of the mutable 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 mutable 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 mutable hash set containing the results of some element computation a number of times.

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

Type parameters

A

the element type of the mutable 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 mutable 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 mutable hash set containing the results of some element computation a number of times.

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

Type parameters

A

the element type of the mutable 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 mutable 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 mutable hash set containing the results of some element computation a number of times.

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

Type parameters

A

the element type of the mutable hash set

Value parameters

elem

the element computation

n

the number of elements contained in the mutable hash set.

Attributes

Returns

A mutable 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 mutable hash set containing repeated applications of a function to a start value.

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

Type parameters

A

the element type of the mutable hash set

Value parameters

f

the function that's repeatedly applied

len

the number of elements contained in the mutable hash set

start

the start value of the mutable hash set

Attributes

Returns

a mutable 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 mutable hash set containing equally spaced values in some integer interval.

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

Type parameters

A

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

Value parameters

end

the end value of the mutable hash set (the first value NOT contained)

start

the start value of the mutable hash set

step

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

Attributes

Returns

a mutable 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 mutable hash set containing a sequence of increasing of integers.

Produces a mutable hash set containing a sequence of increasing of integers.

Type parameters

A

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

Value parameters

end

the end value of the mutable hash set (the first value NOT contained)

start

the first element of the mutable hash set

Attributes

Returns

a mutable 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 mutable hash set containing values of a given function over ranges of integer values starting from 0.

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

Type parameters

A

the element type of the mutable 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 mutable 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 mutable hash set containing values of a given function over ranges of integer values starting from 0.

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

Type parameters

A

the element type of the mutable 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 mutable 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 mutable hash set containing values of a given function over ranges of integer values starting from 0.

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

Type parameters

A

the element type of the mutable 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 mutable 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 mutable hash set containing values of a given function over ranges of integer values starting from 0.

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

Type parameters

A

the element type of the mutable 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 mutable 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 mutable hash set containing values of a given function over a range of integer values starting from 0.

Produces a mutable 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 mutable hash set

Value parameters

f

The function computing element values

n

The number of elements in the mutable hash set

Attributes

Returns

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

Produces a mutable 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 mutable 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
Generated with
Copyright (c) 2002-2026, LAMP/EPFL
Copyright (c) 2002-2026, LAMP/EPFL