UnmodifiableSetView<E> class
An unmodifiable Set view of another Set.
Methods that could change the set, such as add and remove, must not be called.
Constructors
- UnmodifiableSetView(Set<
E> source) - Creates an UnmodifiableSetView of
source.
Properties
- first → E read-only, inherited
- Returns the first element. [...]
- hashCode → int read-only, inherited
- The hash code for this object. [...]
- isEmpty → bool read-only, inherited
- Returns
trueif there are no elements in this collection. [...] - isNotEmpty → bool read-only, inherited
- Returns true if there is at least one element in this collection. [...]
- iterator → Iterator<
E> read-only, override - An iterator that iterates over the elements of this set. [...]
- last → E read-only, inherited
- Returns the last element. [...]
- length → int read-only, override
- Returns the number of elements in the iterable. [...]
- runtimeType → Type read-only, inherited
- A representation of the runtime type of the object.
- single → E read-only, inherited
- Checks that this iterable has only one element, and returns that element. [...]
Methods
- add(
E value) → bool inherited - This operation is not supported by an unmodifiable set.
- addAll(
Iterable< E> elements) → voidinherited - This operation is not supported by an unmodifiable set.
- any(
bool test(E element)) → bool inherited - Checks whether any element of this iterable satisfies
test. [...] - cast<
R> () → Set< R> inherited - Provides a view of this set as a set of
Rinstances. [...] - clear(
) → void inherited - This operation is not supported by an unmodifiable set.
- contains(
Object? element) → bool override - Whether
valueis in the set. - containsAll(
Iterable< Object?> other) → boolinherited - Whether this set contains all the elements of
other. - difference(
Set< Object?> other) → Set<E> inherited - Creates a new set with the elements of this that are not in
other. [...] - elementAt(
int index) → E inherited - Returns the
indexth element. [...] - every(
bool f(E element)) → bool inherited - Checks whether every element of this iterable satisfies
test. [...] - expand<
T> (Iterable< T> f(E element)) → Iterable<T> inherited - Expands each element of this Iterable into zero or more elements. [...]
- firstWhere(
bool test(E value), {E orElse()}) → E inherited - Returns the first element that satisfies the given predicate
test. [...] - fold<
T> (T initialValue, T combine(T previousValue, E element)) → T inherited - Reduces a collection to a single value by iteratively combining each element of the collection with an existing value [...]
- followedBy(
Iterable< E> other) → Iterable<E> inherited - Returns the lazy concatenation of this iterable and
other. [...] - forEach(
void f(E element)) → void inherited - Applies the function
fto each element of this collection in iteration order. - intersection(
Set< Object?> other) → Set<E> inherited - Creates a new set which is the intersection between this set and
other. [...] - join(
[String separator = ""]) → String inherited - Converts each element to a String and concatenates the strings. [...]
- lastWhere(
bool test(E value), {E orElse()}) → E inherited - Returns the last element that satisfies the given predicate
test. [...] - lookup(
Object? element) → E? override - If an object equal to
objectis in the set, return it. [...] - map<
T> (T f(E element)) → Iterable< T> inherited - Returns a new lazy Iterable with elements that are created by calling
fon each element of thisIterablein iteration order. [...] - noSuchMethod(
Invocation invocation) → dynamic inherited - Invoked when a non-existent method or property is accessed. [...]
- reduce(
E combine(E value, E element)) → E inherited - Reduces a collection to a single value by iteratively combining elements of the collection using the provided function. [...]
- remove(
Object? value) → bool inherited - This operation is not supported by an unmodifiable set.
- removeAll(
Iterable< Object?> elements) → voidinherited - This operation is not supported by an unmodifiable set.
- removeWhere(
bool test(E element)) → void inherited - This operation is not supported by an unmodifiable set.
- retainAll(
Iterable< Object?> elements) → voidinherited - This operation is not supported by an unmodifiable set.
- retainWhere(
bool test(E element)) → void inherited - This operation is not supported by an unmodifiable set.
- singleWhere(
bool test(E value), {E orElse()}) → E inherited - Returns the single element that satisfies
test. [...] - skip(
int n) → Iterable< E> inherited - Returns an Iterable that provides all but the first
countelements. [...] - skipWhile(
bool test(E value)) → Iterable< E> inherited - Returns an
Iterablethat skips leading elements whiletestis satisfied. [...] - take(
int n) → Iterable< E> inherited - Returns a lazy iterable of the
countfirst elements of this iterable. [...] - takeWhile(
bool test(E value)) → Iterable< E> inherited - Returns a lazy iterable of the leading elements satisfying
test. [...] - toList(
{bool growable = true}) → List< E> inherited - Creates a List containing the elements of this Iterable. [...]
- toSet(
) → Set< E> override - Creates a Set with the same elements and behavior as this
Set. [...] - toString(
) → String inherited - A string representation of this object. [...]
- union(
Set< E> other) → Set<E> inherited - Creates a new set which contains all the elements of this set and
other. [...] - where(
bool f(E element)) → Iterable< E> inherited - Returns a new lazy Iterable with all elements that satisfy the predicate
test. [...] - whereType<
T> () → Iterable< T> inherited - Returns a new lazy Iterable with all elements that have type
T. [...]
Operators
- operator ==(
Object other) → bool inherited - The equality operator. [...]
© 2012 the Dart project authors
Licensed under the Creative Commons Attribution-ShareAlike License v4.0.
https://api.dart.dev/stable/2.13.0/dart-collection/UnmodifiableSetView-class.html