ListSignal<E> class

A Signal that holds a List.

Inheritance
Implemented types
Available extensions

Constructors

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

Properties

brand Symbol
finalinherited
debugLabel String?
Debug label for Debug Mode
finalinherited
first ↔ E
The first element.
getter/setter pairoverride
globalId int
Global ID of the signal
finalinherited
hashCode int
The hash code for this object.
no setter
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>
A new Iterator that allows iterating the elements of this Iterable.
no setteroverride
last ↔ E
The last element.
getter/setter pairoverride
length int
The number of objects in this list.
getter/setter pairoverride
previousValue List<E>
Get the last value before the last update or the initial value
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 setteroverride
value List<E>
Compute the current value
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.
override
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>
Returns a view of this list as a list of R instances.
override
clear() → void
Removes all objects from this list; the length of the list becomes zero.
override
contains(Object? element) bool
Whether the collection contains an element equal to element.
override
elementAt(int index) → E
Returns the indexth element.
override
every(bool test(E element)) bool
Checks whether every element of this iterable satisfies test.
override
expand<T>(Iterable<T> toElements(E element)) Iterable<T>
Expands each element of this Iterable into zero or more elements.
override
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.
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
override
followedBy(Iterable<E> other) Iterable<E>
Creates the lazy concatenation of this iterable and other.
override
forceUpdate(List<E> val) → void
Should only be called to update the value of a signal if checks for equality have already been made.
inherited
forEach(void action(E element)) → void
Invokes action on each element of this iterable in iteration order.
override
get() List<E>
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
join([String separator = ""]) String
Converts each element to a String and concatenates the strings.
override
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.
override
map<T>(T toElement(E e)) Iterable<T>
The current elements of this iterable modified by toElement.
override
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
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
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.
override
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> value) → void
Set the current value
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.
override
skip(int count) Iterable<E>
Creates an Iterable that provides all but the first count elements.
override
skipWhile(bool test(E value)) Iterable<E>
Creates an Iterable that skips leading elements while test is satisfied.
override
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)) EffectCleanup
Subscribe to value changes
inherited
take(int count) Iterable<E>
Creates a lazy iterable of the count first elements of this iterable.
override
takeWhile(bool test(E value)) Iterable<E>
Creates a lazy iterable of the leading elements satisfying test.
override
toJson() List<E>
Convert value to JSON
inherited
toList({bool growable = true}) List<E>
Creates a List containing the elements of this Iterable.
override
toSet() Set<E>
Creates a Set containing the same elements as this iterable.
override
toString() String
A string representation of this object.
inherited
where(bool test(E element)) 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 &(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.
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