Multiset<E> class

A generalized Set (or Bag) in which members are allowed to appear more than once.

Inheritance
Available Extensions

Constructors

Multiset()
Creates an empty Multiset.
factory
Multiset.from(Iterable<E> other)
Creates a Multiset that contains all elements of other.
factory
Multiset.fromIterable(Iterable<Object?> iterable, {E key(Object? element)?, int count(Object? element)?})
Creates a Multiset where the elements and their occurrence count is computed from an iterable.
factory
Multiset.identity()
Creates an empty identity Multiset.
factory
Multiset.of(Iterable<E> other)
Creates a Multiset that contains all elements of other.
factory

Properties

counts → Iterable<int>
Returns a view on the counts of the distinct elements of the receiver.
no setter
distinct → Iterable<E>
Returns a view on the distinct elements of the receiver.
no setter
first → E
The first element.
no setterinherited
hashCode → int
The hash code for this object.
no setterinherited
isEmpty → bool
Whether this collection has no elements.
no setterinherited
isNotEmpty → bool
Whether this collection has at least one element.
no setterinherited
iterator → Iterator<E>
Iterator over the repeated elements of the receiver.
no setteroverride
last → E
The last element.
no setterinherited
length → int
Returns the total number of elements in the receiver.
no setteroverride
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
single → E
Checks that this iterable has only one element, and returns that element.
no setterinherited

Methods

add(E element, [int occurrences = 1]) → void
Adds element to the receiver occurrences number of times.
addAll(Iterable<E> elements) → void
Adds all of elements to the receiver.
any(bool test(E element)) → bool
Checks whether any element of this iterable satisfies test.
inherited
asMap() → Map<E, int>
Returns an unmodifiable view of the underlying data in a Map with the elements as the key and their counts as the value.
cast<R>() → Iterable<R>
A view of this iterable as an iterable of R instances.
inherited
clear() → void
Removes all elements from the receiver.
combine(Iterable<E> other, int callback(E element, int a, int b)) → Multiset<E>
Returns a new Multiset by evaluating callback element-wise for each distinct element of this and other.
contains(Object? element) → bool
Returns true if element is in the receiver.
override
containsAll(Iterable<Object?> other) → bool
Returns true if all elements of other are contained in the receiver.
difference(Iterable<Object?> other) → Multiset<E>
Returns a new Multiset with all the elements of the receiver that are not in other.
elementAt(int index) → E
Returns the indexth element.
inherited
every(bool test(E element)) → bool
Checks whether every element of this iterable satisfies test.
inherited
expand<T>(Iterable<T> toElements(E element)) → Iterable<T>
Expands each element of this Iterable into zero or more elements.
inherited
firstWhere(bool test(E element), {E orElse()?}) → E
The first element that satisfies the given predicate test.
inherited
fold<T>(T initialValue, T combine(T previousValue, E element)) → T
Reduces a collection to a single value by iteratively combining each element of the collection with an existing value
inherited
followedBy(Iterable<E> other) → Iterable<E>
Creates the lazy concatenation of this iterable and other.
inherited
forEach(void action(E element)) → void
Invokes action on each element of this iterable in iteration order.
inherited
intersection(Iterable<Object?> other) → Multiset<E>
Returns a new Multiset with the elements that are in the receiver as well as those in other.
join([String separator = ""]) → String
Converts each element to a String and concatenates the strings.
inherited
lastWhere(bool test(E element), {E orElse()?}) → E
The last element that satisfies the given predicate test.
inherited
map<T>(T toElement(E e)) → Iterable<T>
The current elements of this iterable modified by toElement.
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
reduce(E combine(E value, E element)) → E
Reduces a collection to a single value by iteratively combining elements of the collection using the provided function.
inherited
remove(Object? element, [int occurrences = 1]) → void
Removes element from the receiver occurrences number of times.
removeAll(Iterable<Object?> elements) → void
Removes each element of elements from the receiver.
singleWhere(bool test(E element), {E orElse()?}) → E
The single element that satisfies test.
inherited
skip(int count) → Iterable<E>
Creates an Iterable that provides all but the first count elements.
inherited
skipWhile(bool test(E value)) → Iterable<E>
Creates an Iterable that skips leading elements while test is satisfied.
inherited
take(int count) → Iterable<E>
Creates a lazy iterable of the count first elements of this iterable.
inherited
takeWhile(bool test(E value)) → Iterable<E>
Creates a lazy iterable of the leading elements satisfying test.
inherited
toList({bool growable = true}) → List<E>
Creates a List containing the elements of this Iterable.
inherited
toSet() → Set<E>
Creates a Set containing the same elements as this iterable.
inherited
toString() → String
Returns a string representation of (some of) the elements of this.
inherited
union(Iterable<E> other) → Multiset<E>
Returns a new Multiset with all the elements of the receiver and those in other.
where(bool test(E element)) → Iterable<E>
Creates a new lazy Iterable with all elements that satisfy the predicate test.
inherited
whereType<T>() → Iterable<T>
Creates a new lazy Iterable with all elements that have type T.
inherited

Operators

operator ==(Object other) → bool
The equality operator.
inherited
operator [](Object? element) → int
Gets the number of occurrences of an element.
operator []=(E element, int occurrences) → void
Sets the number of occurrences of an element.