ListSignal<E> class

A Signal that holds a List.

Inheritance
Implemented types
Available extensions

Constructors

ListSignal(List<E> value, {String? debugLabel, bool autoDispose = false})
Creates a ListSignal with the given value.

Properties

autoDispose bool
Throws and error if read after dispose and can be disposed on last unsubscribe.
getter/setter pairinherited
brand Symbol
finalinherited
debugLabel String?
Debug label for Debug Mode
finalinherited
disposed bool
Check if the effect is disposed
getter/setter pairinherited
equalityCheck bool Function(List<E> a, List<E> b)
Optional method to check if to values are the same
getter/setter pairinherited
first ↔ E
The first element.
getter/setter pairinherited-getteroverride-setter
globalId int
Global ID of the signal
finalinherited
hashCode int
The hash code for this object.
no setteroverride
initialValue List<E>
Value that the signal was created with
getter/setter pairinherited
internalValue List<E>
getter/setter pairinherited
isEmpty bool
Whether this collection has no elements.
no setterinherited
isInitialized bool
Check if the value is set and not a lazy signal
getter/setter pairinherited
isNotEmpty bool
Whether this collection has at least one element.
no setterinherited
iterator Iterator<E>
A new Iterator that allows iterating the elements of this Iterable.
no setterinherited
last ↔ E
The last element.
getter/setter pairoverride-setter
length int
The number of elements in this Iterable.
getter/setter pairinherited-getteroverride-setter
node ↔ Node?
getter/setter pairinherited
previousValue List<E>
Previous value that was set before the current
no setterinherited
reversed Iterable<E>
An Iterable of the objects in this list in reverse order.
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
targets ↔ Node?
getter/setter pairinherited
value List<E>
Compute the current value
getter/setter pairinherited
version int
Version numbers should always be >= 0, because the special value -1 is used by Nodes to signify potentially unused but recyclable nodes.
getter/setter pairinherited

Methods

add(E value) → void
Adds value to the end of this list, extending the length by one.
override
addAll(Iterable<E> iterable) → void
Appends all objects of iterable to the end of this list.
override
any(bool test(E element)) bool
Checks whether any element of this iterable satisfies test.
inherited
asMap() Map<int, E>
An unmodifiable Map view of this list.
override
call() List<E>
Return the value when invoked
inherited
cast<R>() List<R>
A view of this iterable as an iterable of R instances.
clear() → void
Removes all objects from this list; the length of the list becomes zero.
override
contains(Object? value) bool
Whether the collection contains an element equal to element.
inherited
dispose() → void
Dispose the signal
inherited
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.
fillRange(int start, int end, [E? fillValue]) → void
Overwrites a range of elements with fillValue.
override
firstWhere(bool test(E element), {E orElse()?}) → E
The first element that satisfies the given predicate test.
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
followedBy(Iterable<E> other) Iterable<E>
Creates the lazy concatenation of this iterable and other.
forEach(void action(E element)) → void
Invokes action on each element of this iterable in iteration order.
inherited
get() List<E>
Helper method to get the current value
inherited
getRange(int start, int end) Iterable<E>
Creates an Iterable that iterates over a range of elements.
override
indexOf(E element, [int start = 0]) int
The first index of element in this list.
override
indexWhere(bool test(E element), [int start = 0]) int
The first index in the list that satisfies the provided test.
override
insert(int index, E element) → void
Inserts element at position index in this list.
override
insertAll(int index, Iterable<E> iterable) → void
Inserts all objects of iterable at position index in this list.
override
internalRefresh() bool
inherited
internalSetValue(List<E> val) → void
inherited
join([String separator = ""]) String
Converts each element to a String and concatenates the strings.
inherited
lastIndexOf(E element, [int? start]) int
The last index of element in this list.
override
lastIndexWhere(bool test(E element), [int? start]) int
The last index in the list that satisfies the provided test.
override
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
onDispose(void cleanup()) EffectCleanup
Add a cleanup function to be called when the signal is disposed
inherited
overrideWith(List<E> val) Signal<List<E>>
Override the current signal with a new value as if it was created with it
inherited
peek() List<E>
In the rare instance that you have an effect that should write to another signal based on the previous value, but you don't want the effect to be subscribed to that signal, you can read a signals's previous value via signal.peek().
inherited
readonly() ReadonlySignal<List<E>>
Returns a readonly signal
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 the first occurrence of value from this list.
override
removeAt(int index) → E
Removes the object at position index from this list.
override
removeLast() → E
Removes and returns the last object in this list.
override
removeRange(int start, int end) → void
Removes a range of elements from the list.
override
removeWhere(bool test(E element)) → void
Removes all objects from this list that satisfy test.
override
replaceRange(int start, int end, Iterable<E> replacements) → void
Replaces a range of elements with the elements of replacements.
override
retainWhere(bool test(E element)) → void
Removes all objects from this list that fail to satisfy test.
override
set(List<E> val, {bool force = false}) bool
Set the current value by a method
inherited
setAll(int index, Iterable<E> iterable) → void
Overwrites elements with the objects of iterable.
override
setRange(int start, int end, Iterable<E> iterable, [int skipCount = 0]) → void
Writes some elements of iterable into a range of this list.
override
shuffle([Random? random]) → void
Shuffles the elements of this list randomly.
override
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
sort([int compare(E a, E b)?]) → void
Sorts this list according to the order specified by the compare function.
override
sorted([int compare(E a, E b)?]) List<E>
Return a new array that is sorted by the compare function
sublist(int start, [int? end]) List<E>
Returns a new list containing the elements between start and end.
override
subscribe(void fn(List<E> value)) → void Function()
Subscribe to value changes with a dispose function
inherited
subscribeToNode(Node node) → void
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
toJson() → dynamic
Convert value to JSON
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
A string representation of this object.
inherited
unsubscribeFromNode(Node node) → void
inherited
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 &(Iterable<E> other) ListSignal<E>
Fork: create a new signal which value is the concatenation of source signal and iterable parameter
operator +(List<E> other) List<E>
Returns the concatenation of this list and other.
override
operator <<(Iterable<E> other) ListSignal<E>
Inject: Update current signal value with iterable
operator ==(Object other) bool
The equality operator.
override
operator [](int index) → E
The object at the given index in the list.
override
operator []=(int index, E value) → void
Sets the value at the given index in the list to value.
override
operator |(Signal<Iterable<E>> other) ListSignal<E>
Pipe: create a new signal by sending value from source to other