LxSet<E> class

A reactive set that automatically notifies observers when elements are added or removed.

LxSet implements the standard Dart Set interface and provides automatic reactivity for all mutating operations.

Inheritance

Implemented types

Set<E>

Available extensions

Constructors

LxSet([Set<E>? initial, String? name]): Creates a reactive set.
LxSet.from(Iterable<E> elements): Creates an LxSet from an existing Iterable.
factory

Properties

first → E: The first element.
no setteroverride
firstOrNull → T?: Available on Iterable<T>, provided by the IterableExtensions extension
The first element of this iterator, or null if the iterable is empty.
no setter
graphDepth ↔ int: Returns the current depth in the dependency graph.
getter/setter pairinherited
hashCode → int: The hash code for this object.
no setterinherited
hasListener → bool: Whether there are active listeners.
no setterinherited
id → int: A unique runtime identifier for this reactive instance.
finalinherited
indexed → Iterable<(int, T)>: Available on Iterable<T>, provided by the IterableExtensions extension
Pairs of elements of the indices and elements of this iterable.
no setter
isDisposed → bool: Whether the reactive object has been closed/disposed.
no setterinherited
isEmpty → bool: Whether this collection has no elements.
no setteroverride
isNotEmpty → bool: Whether this collection has at least one element.
no setteroverride
iterator → Iterator<E>: An iterator that iterates over the elements of this set.
no setteroverride
last → E: The last element.
no setteroverride
lastOrNull → T?: Available on Iterable<T>, provided by the IterableExtensions extension
The last element of this iterable, or null if the iterable is empty.
no setter
length → int: The number of elements in this Iterable.
no setteroverride
lx → LxSet<E>: Available on Set<E>, provided by the LxSetExtension extension
Wraps this set in a reactive LxSet.
no setter
name ↔ String?: An optional descriptive name for debugging and profiling.
getter/setter pairinherited
nonNulls → Iterable<T>: Available on Iterable<T?>, provided by the NullableIterableExtensions extension
The non-null elements of this iterable.
no setter
onCancel → void Function()?: Called when the stream is cancelled.
finalinherited
onListen → void Function()?: Called when the stream is listened to.
finalinherited
ownerId ↔ String?: The registration key of the owning controller, if applicable.
getter/setter pairinherited
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 setteroverride
singleOrNull → T?: Available on Iterable<T>, provided by the IterableExtensions extension
The single element of this iterator, or null.
no setter
stream → Stream<Set<E>>: A Stream that emits the latest value whenever it updates.
no setterinherited
value ↔ Set<E>: The current state of the reactive object.
getter/setter pairinherited
wait → Future<List<T>>: Available on Iterable<Future<T>>, provided by the FutureIterable extension
Waits for futures in parallel.
no setter

Methods

add(E value) → bool: Adds value to the set.
override
addAll(Iterable<E> elements) → void: Adds all elements to this set.
override
addListener(void listener()) → void: Adds a listener.
inherited
any(bool test(E)) → bool: Checks whether any element of this iterable satisfies test.
override
asNameMap() → Map<String, T>: Available on Iterable<T>, provided by the EnumByName extension
Creates a map from the names of enum values to the values.
assign(Iterable<E> elements) → void: Replaces all elements with elements in a single notification.
assignOne(E element) → void: Replaces the set with a single element.
bind(Stream<Set<E>> externalStream) → void: Binds an external stream to this reactive variable.
inherited
byName(String name) → T: Available on Iterable<T>, provided by the EnumByName extension
Finds the enum value in this list with name name.
call([Set<E>? v]) → Set<E>: Functional-style update and retrieval.
inherited
cast<R>() → Set<R>: Provides a view of this set as a set of R instances.
override
clear() → void: Removes all elements from the set.
override
close() → void: Permanently closes the reactive object and releases all internal resources.
inherited
contains(Object? value) → bool: Whether value is in the set.
override
containsAll(Iterable<Object?> other) → bool: Whether this set contains all the elements of other.
override
difference(Set<Object?> other) → Set<E>: Creates a new set with the elements of this that are not in other.
override
dispose() → void: Disposes the notifier.
inherited
elementAt(int index) → E: Returns the indexth element.
override
elementAtOrNull(int index) → T?: Available on Iterable<T>, provided by the IterableExtensions extension
The element at position index of this iterable, or null.
every(bool test(E)) → bool: Checks whether every element of this iterable satisfies test.
override
expand<T>(Iterable<T> f(E)) → Iterable<T>: Expands each element of this Iterable into zero or more elements.
override
firstWhere(bool test(E), {E orElse()?}) → E: The first element that satisfies the given predicate test.
override
fold<T>(T initialValue, T combine(T, E)) → T: Reduces a collection to a single value by iteratively combining each element of the collection with an existing value
override
followedBy(Iterable<E> other) → Iterable<E>: Creates the lazy concatenation of this iterable and other.
override
forEach(void f(E)) → void: Invokes action on each element of this iterable in iteration order.
override
intersection(Set<Object?> other) → Set<E>: Creates a new set which is the intersection between this set and other.
override
join([String separator = '']) → String: Converts each element to a String and concatenates the strings.
override
lastWhere(bool test(E), {E orElse()?}) → E: The last element that satisfies the given predicate test.
override
lookup(Object? object) → E?: If an object equal to object is in the set, return it.
override
map<T>(T f(E)) → Iterable<T>: The current elements of this iterable modified by toElement.
override
mutate(void mutator(Set<E> value)) → void: Mutates the value in place and triggers a refresh.
inherited
noSuchMethod(Invocation invocation) → dynamic: Invoked when a nonexistent method or property is accessed.
inherited
notify() → void: Alias for refresh.
inherited
reduce(E combine(E, E)) → E: Reduces a collection to a single value by iteratively combining elements of the collection using the provided function.
override
refresh() → void: Triggers a notification without changing the value.
inherited
remove(Object? value) → bool: Removes value from the set.
override
removeAll(Iterable<Object?> elements) → void: Removes each element of elements from this set.
override
removeListener(void listener()) → void: Removes a listener.
inherited
removeWhere(bool test(E)) → void: Removes all elements of this set that satisfy test.
override
retainAll(Iterable<Object?> elements) → void: Removes all elements of this set that are not elements in elements.
override
retainWhere(bool test(E)) → void: Removes all elements of this set that fail to satisfy test.
override
setValueInternal(Set<E> val, {bool notifyListeners = true}) → void: Internal setter for subclasses (Computed, etc.)
inherited
singleWhere(bool test(E), {E orElse()?}) → E: The single element that satisfies test.
override
skip(int count) → Iterable<E>: Creates an Iterable that provides all but the first count elements.
override
skipWhile(bool test(E)) → Iterable<E>: Creates an Iterable that skips leading elements while test is satisfied.
override
take(int count) → Iterable<E>: Creates a lazy iterable of the count first elements of this iterable.
override
takeWhile(bool test(E)) → Iterable<E>: Creates a lazy iterable of the leading elements satisfying test.
override
toList({bool growable = true}) → List<E>: Creates a List containing the elements of this Iterable.
override
toSet() → Set<E>: Creates a Set with the same elements and behavior as this Set.
override
toString() → String: A string representation of this object.
inherited
transform<R>(Stream<R> transformer(Stream<Set<E>> stream)) → LxStream<R>: Transforms the stream of changes using transformer.
inherited
unbind() → void: Unbinds any external stream.
inherited
union(Set<E> other) → Set<E>: Creates a new set which contains all the elements of this set and other.
override
updateValue(Set<E> fn(Set<E> val)) → void: Updates the value using a transformation function.
inherited
where(bool test(E)) → Iterable<E>: Creates a new lazy Iterable with all elements that satisfy the predicate test.
override
whereType<T>() → Iterable<T>: Creates a new lazy Iterable with all elements that have type T.
override

Operators

operator ==(Object other) → bool: The equality operator.
inherited

LxSet<E> class

Constructors

Properties

Methods

Operators

levit_dart_kit library