SetSignal<E> class

SetSignal makes easier interacting with sets in a reactive context.

final set = SetSignal({1});

Effect((_) {
  print(set.first);
}); // prints 1

set[0] = 100; // the effect prints 100
Inheritance
Mixed-in types
Available extensions

Constructors

SetSignal(Iterable<E> initialValue, {String? name, bool? equals, bool? autoDispose, bool? trackInDevTools, ValueComparator<Set<E>?> comparator = identical, bool? trackPreviousValue})
SetSignal makes easier interacting with sets in a reactive context.

Properties

autoDispose bool
Whether to automatically dispose the signal (defaults to SolidartConfig.autoDispose).
finalinherited
comparator → ValueComparator<Set<E>?>
An optional comparator function, defaults to identical.
finalinherited
disposed bool
Tells if the signal is disposed;
no setterinherited
equals bool
Whether to check the equality of the value with the == equality.
finalinherited
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
hashCode int
The hash code for this object.
no setterinherited
hasPreviousValue bool
Indicates if there is a previous value. It is especially helpful if T is nullable.
no setterinherited
hasValue bool
Whether or not the signal has been initialized with a value.
no setterinherited
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
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>
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
Returns the number of elements in the iterable.
no setteroverride
listenerCount int
Returns the number of listeners listening to this signal.
no setterinherited
name String
The name of the signal, useful for logging purposes.
finalinherited
nonNulls Iterable<T>

Available on Iterable<T?>, provided by the NullableIterableExtensions extension

The non-null elements of this iterable.
no setter
previousValue Set<E>?
The previous value, if any.
no setterinherited
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
trackInDevTools bool
finalinherited
trackPreviousValue bool
finalinherited
untrackedPreviousValue Set<E>?
Returns the untracked previous value of the signal.
no setterinherited
untrackedValue Set<E>
Returns the value without triggering the reactive system.
no setterinherited
value Set<E>
The current signal value
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.
inherited
any(bool test(E element)) bool
Checks whether any element of this iterable satisfies test.
inherited
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.
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>
The current signal value
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
contains(Object? element) bool
Whether value is in the set.
override
containsAll(Iterable<Object?> other) bool
Whether this set contains all the elements of other.
inherited
difference(Set<Object?> other) Set<E>
Creates a new set with the elements of this that are not in other.
inherited
dispose() → void
Diposes the signal
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 f(E element)) bool
Checks whether every element of this iterable satisfies test.
inherited
expand<T>(Iterable<T> f(E element)) Iterable<T>
Expands each element of this Iterable into zero or more elements.
inherited
firstWhere(bool test(E value), {E orElse()?}) → E
The first element that satisfies the given predicate test.
override
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 f(E element)) → void
Invokes action on each element of this iterable in iteration order.
inherited
intersection(Set<Object?> other) Set<E>
Creates a new set which is the intersection between this set and other.
inherited
join([String separator = ""]) String
Converts each element to a String and concatenates the strings.
inherited
lastWhere(bool test(E value), {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 element)) 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
onDispose(VoidCallback cb) → void
Fired when the signal is disposing
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? value) bool
Removes value from the set.
override
removeAll(Iterable<Object?> elements) → void
Removes each element of elements from this set.
override
removeWhere(bool test(E element)) → 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 element)) → void
Removes all elements of this set that fail to satisfy test.
override
setValue(Set<E> newValue) Set<E>
Sets the current signal value with newValue.
override
shouldUpdate() bool
Indicates if the signal should update its value.
inherited
singleWhere(bool test(E value), {E orElse()?}) → E
The single element that satisfies test.
override
skip(int n) 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 n) 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.
override
toReadSignal() ReadableSignal<Set<E>>
Converts this Signal into a ReadableSignal Use this method to remove the visility to the value setter.
inherited
toSet() Set<E>
Creates a Set with the same elements and behavior as this Set.
override
toString() String
A string representation of this object.
override
union(Set<E> other) Set<E>
Creates a new set which contains all the elements of this set and other.
inherited
until(bool condition(Set<E> value), {Duration? timeout}) FutureOr<Set<E>>
Returns the future that completes when the condition evalutes to true. If the condition is already true, it completes immediately.
inherited
updateValue(Set<E> callback(Set<E> value)) Set<E>
Calls a function with the current value and assigns the result as the new value.
override
where(bool f(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