interface HashMultiSet.Builder<T>

A mutable HashMultiSet builder used to efficiently create new immutable instances. See the MultiSet documentation and the HashMultiSet.Builder API documentation

Extends: MultiSetBase.Builder<T,Tp>

Type parameters

Name	Description
T	the value type

Properties

isEmpty

Returns true if there are no values in the builder.

Definition

readonly isEmpty: boolean;

example

HashMultiSet.of(1, 2, 2).toBuilder().isEmpty
// => false

Overrides

Builder.isEmpty

size

Returns the amount of values in the builder.

Definition

readonly size: number;

example

HashMultiSet.of(1, 2, 2).toBuilder().size
// => 3

Overrides

Builder.size

sizeDistinct

Returns the amount of distinct values in the builder.

Definition

readonly sizeDistinct: number;

example

HashMultiSet.of(1, 2, 2).toBuilder().sizeDistinct
// => 2

Overrides

Builder.sizeDistinct

Methods

add

Adds given value to the builder.

Definition

add(value: T, amount?: number): boolean;

Parameters

Name	Type	Description
value	T
amount	number

example

const s = HashMultiSet.of(1, 2, 2).toBuilder()
s.add(2)     // => true
s.add(3, 5)  // => true
s.add(3, 0)  // => false

Overrides

Builder.add

addAll

Adds the values in given values StreamSource to the builder.

Definition

addAll(values: StreamSource<T>): boolean;

Parameters

Name	Type	Description
values	StreamSource<T>

example

const s = HashMultiSet.of(1, 2, 2).toBuilder()
s.addAll(1, 3)   // => false
s.addAll(2, 10)  // => true

Overrides

Builder.addAll

addEntries

Adds for each tuple of a value and amount in the given entries, the amount of values to the builder.

Definition

addEntries(entries: StreamSource<readonly [T, number]>): boolean;

Parameters

Name	Type	Description
entries	StreamSource<readonly [T, number]>

example

const s = HashMultiSet.of(1, 2, 2).toBuilder()
s.addEntries([[1, 2], [2, 3]])   // => true
s.addEntries([[1, 0], [3, 0]])   // => false

Overrides

Builder.addEntries

build

Returns an immutable instance containing the values in this builder.

Definition

build(): WithElem<Tp, T>['normal'];

example

const s = HashMultiSet.of(1, 2, 2).toBuilder()
const s2: HashMultiSet<number> = m.build()

Overrides

Builder.build

count

Returns the amount of given value in the builder.

Definition

count<U = T>(value: RelatedTo<T, U>): number;

Type parameters

Name	Default	Description
U	T

Parameters

Name	Type	Description
value	RelatedTo<T, U>	the value to look for

example

const s = HashMultiSet.of(1, 2, 2).toBuilder()
s.count(10)    // => 0
s.count(2)     // => 2

Overrides

Builder.count

forEach

Performs given function f for each value of the collection, using given state as initial traversal state.

Definition

forEach(f: (value: T, index: number, halt: () => void) => void, options?: {
      state?: TraverseState;
    }): void;

Parameters

Name	Type	Description
f	(value: T, index: number, halt: () => void) => void	the function to perform for each value, receiving: - value: the next value - index: the index of the value - halt: a function that, if called, ensures that no new values are passed
options	{       state?: TraverseState;     }	(optional) an object containing the following properties: - state: (optional) the traversal state

throws

RibuError.ModifiedBuilderWhileLoopingOverItError if the builder is modified while looping over it

example

HashMultiSet.of(1, 2, 2, 3).toBuilder().forEach((entry, i, halt) => {
console.log(entry)
if (i >= 1) halt()
})
// => logs [1, 1]  [2, 2]

Overrides

Builder.forEach

has

Returns true if the given value is present in the builder.

Definition

has<U = T>(value: RelatedTo<T, U>): boolean;

Type parameters

Name	Default	Description
U	T

Parameters

Name	Type	Description
value	RelatedTo<T, U>	the value to look for

example

const s = HashMultiSet.of(1, 2, 2).toBuilder()
s.has(2)   // => true
s.has(10)  // => false

Overrides

Builder.has

modifyCount

Changes the amount of given value in the builder according to the result of given update function.

Definition

modifyCount(value: T, update: (currentCount: number) => number): boolean;

Parameters

Name	Type	Description
value	T	the value of which to update the amount
update	(currentCount: number) => number

note

if the given value does not exists, the update function is called with 0. @note if the result of update is <= 0, the value will be removed (or not added)

example

const s = HashMultiSet.of(1, 2, 2).toBuilder()
s.modifyCount(3, v => v)      // => false
s.modifyCount(3, v => v + 1)  // => true
s.modifyCount(2, v => v + 1)  // => true

Overrides

Builder.modifyCount

remove

Removes given amount or all of given value from the builder.

Definition

remove<U = T>(value: RelatedTo<T, U>, amount?: number | 'ALL'): number;

Type parameters

Name	Default	Description
U	T

Parameters

Name	Type	Description
value	RelatedTo<T, U>	the value to remove
amount	number | 'ALL'

example

const s = HashMultiSet.of(1, 2, 2).toBuilder()
s.remove(10)    // => 0
s.remove(1, 2)  // => 1
s.remove(2, 2)  // => 2

Overrides

Builder.remove

removeAllEvery

Removes every instance of the given values from the builder.

Definition

removeAllEvery<U = T>(values: StreamSource<RelatedTo<T, U>>): boolean;

Type parameters

Name	Default	Description
U	T

Parameters

Name	Type	Description
values	StreamSource<RelatedTo<T, U>>

example

const s = HashMultiSet.of(1, 2, 2).toBuilder()
s.removeAllEvery([10, 11])   // => false
s.removeAllEvery([1, 11])    // => true

Overrides

Builder.removeAllEvery

removeAllSingle

Removes every single value in given values from the builder.

Definition

removeAllSingle<U = T>(values: StreamSource<RelatedTo<T, U>>): boolean;

Type parameters

Name	Default	Description
U	T

Parameters

Name	Type	Description
values	StreamSource<RelatedTo<T, U>>

example

const s = HashMultiSet.of(1, 2, 2).toBuilder()
s.removeAllSingle([10, 11])   // => false
s.removeAllSingle([1, 11])    // => true

Overrides

Builder.removeAllSingle

setCount

Sets the amount of given value in the collection to amount.

Definition

setCount(value: T, amount: number): boolean;

Parameters

Name	Type	Description
value	T	the value for which to set the amount
amount	number

note

if amount <= 0, the value will be removed

example

const s = HashMultiSet.of(1, 2, 2).toBuilder()
s.setCount(1, 1)    // => false
s.setCount(1, 3)    // => true

Overrides

Builder.setCount