interface HashMultiSetCreators

undocumented

Extends: MultiSetBase.Factory<Tp,UT>

Methods

builder

Returns an empty builder instance for this type of collection and context.

Definition

builder<T extends UT>(): WithElem<Tp, T>['builder'];

Type parameters

Name	Constraints	Description
T	UT

example

HashMultiSet.builder<number>()    // => HashMultiSet.Builder<number>

Overrides

Factory.builder

createContext

Returns a new HashMultiSet context instance based on the given options.

Definition

createContext<UT>(options?: {
    countMapContext?: HashMap.Context<UT>;
  }): HashMultiSet.Context<UT>;

Type parameters

Name	Description
UT	the upper element type for which the context can create instances

Parameters

Name	Type	Description
options	{     countMapContext?: HashMap.Context<UT>;   }	(optional) an object containing the following properties: - countMapContext: (optional) the map context to use for key to count mapping

defaultContext

Returns the default context for HashMultiSet.

Definition

defaultContext<UT>(): HashMultiSet.Context<UT>;

Type parameters

Name	Description
UT	the upper element type for which the context can create instances

empty

Returns the (singleton) empty instance of this type and context with given key and value types.

Definition

empty<T extends UT>(): WithElem<Tp, T>['normal'];

Type parameters

Name	Constraints	Description
T	UT

example

HashMultiSet.empty<number>()    // => HashMultiSet<number>
HashMultiSet.empty<string>()    // => HashMultiSet<string>

Overrides

Factory.empty

from

Returns an immutable multimap of this type and context, containing the values in the given sources StreamSource.

Definitions

from<T extends UT>(...sources: ArrayNonEmpty<StreamSource.NonEmpty<T>>): WithElem<Tp, T>['nonEmpty'];

from<T extends UT>(...sources: ArrayNonEmpty<StreamSource<T>>): WithElem<Tp, T>['normal'];

Type parameters

Name	Constraints	Description
T	UT

Parameters

Name	Type	Description
sources	ArrayNonEmpty<StreamSource.NonEmpty<T>>	a non-empty array of StreamSource instances containing values to add

example

HashMultiSet.from([1, 2], [2, 3, 4]).toArray()    // => [1, 2, 2, 3, 4]

Overrides

Factory.from

of

Returns an immutable multimap of this collection type and context, containing the given values.

Definition

of<T extends UT>(...values: ArrayNonEmpty<T>): WithElem<Tp, T>['nonEmpty'];

Type parameters

Name	Constraints	Description
T	UT

Parameters

Name	Type	Description
values	ArrayNonEmpty<T>	a non-empty array of vslues

example

HashMultiSet.of(1, 2, 2)    // => HashMultiSet.NonEmpty<number>

Overrides

Factory.of

reducer

Returns a Reducer that appends received items to a MultiSet and returns the MultiSet as a result. When a source is given, the reducer will first create a MultiSet from the source, and then add elements to it.

Definition

reducer<T extends UT>(source?: StreamSource<T>): Reducer<T, WithElem<Tp, T>['normal']>;

Type parameters

Name	Constraints	Description
T	UT

Parameters

Name	Type	Description
source	StreamSource<T>	(optional) an initial source of elements to add to

example

const someList = [1, 2, 3];
const result = Stream.range({ start: 20, amount: 5 }).reduce(SortedMultiSet.reducer(someList))
result.toArray()   // => [1, 2, 3, 20, 21, 22, 23, 24]

note

uses a MultiSet builder under the hood. If the given source is a MultiSet in the same context, it will directly call .toBuilder().

Overrides

Factory.reducer