BaseList<E> class abstract

A base class intended to be extended by higher-level implementations of List.

Implemented types
Available extensions

Constructors

BaseList(List<E> elements, {required bool growable})
A base class intended to be extended by higher-level implementations of List.
const

Properties

elements → List<E>
The underlying List containing all of the elements in this list.
final
first ↔ E
The first element.
getter/setter pairoverride
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
growable → bool
If true, this list is growable; otherwise, this is a fixed-length list.
final
hashCode → int
The hash code for this object.
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 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
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 objects in this list.
getter/setter pairoverride
nonNulls → Iterable<T>

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

The non-null elements of this iterable.
no setter
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
singleOrNull → T?

Available on Iterable<T>, provided by the IterableExtensions extension

The single element of this iterator, or null.
no setter
toJS → JSArray<T>

Available on List<T>, provided by the ListToJSArray extension

Converts this List to a JSArray by either casting, unwrapping, or cloning the List.
no setter
toJSIterable → JSIterable<T>

Available on Iterable<T>, provided by the IterableToJSIterable extension

A JSIterable wrapper that proxies to the Dart iterable API.
no setter
toJSProxyOrRef → JSArray<T>

Available on List<T>, provided by the ListToJSArray extension

Converts this List to a JSArray by either casting, unwrapping, or proxying the List.
no setter
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) → 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(Test<E> test) → bool
Checks whether any element of this iterable satisfies test.
override
asMap() → Map<int, E>
An unmodifiable Map view of this list.
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.
byName(String name) → T

Available on Iterable<T>, provided by the EnumByName extension

Finds the enum value in this list with name name.
cast<R>() → List<R>
Returns a view of this list as a list of R instances.
inherited
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
count(T object) → int

Available on List<T>, provided by the ListUtilities extension

Returns the number of instances there are of object in this list.
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(Test<E> test) → bool
Checks whether every element of this iterable satisfies test.
override
exclude(Iterable<T> subset) → List<T>

Available on List<T>, provided by the ListUtilities extension

Returns a new list containing all of the elements in this list that aren't also contained within subset.
excludeByIndex(Iterable<int> indexes) → List<T>

Available on List<T>, provided by the ListUtilities extension

Returns a sublist containing every element in this list, excluding those at the defined indexes.
expand<T>(Expand<T, E> f) → 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(Test<E> test, {OrElse<E>? orElse}) → E
The first element that satisfies the given predicate test.
override
fold<T>(T initialValue, Fold<T, E> combine) → 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(ForEach<E> f) → void
Invokes action on each element of this iterable in iteration order.
override
getRandom(int count, [int? seed]) → List<T>

Available on List<T>, provided by the ListUtilities extension

Returns a new list containing random elements from this list.
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(Test<E> test, [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(Test<E> test, [int? start]) → int
The last index in the list that satisfies the provided test.
override
lastWhere(Test<E> test, {OrElse<E>? orElse}) → E
The last element that satisfies the given predicate test.
override
map<T>(Mapper<T, E> f) → Iterable<T>
The current elements of this iterable modified by toElement.
override
matches(Iterable<T> other, {bool ordered = false}) → bool

Available on Iterable<T>, provided by the IterableUtilities extension

Returns true if this and other are the same length and contain all of the same elements.
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
pluck(int start, [int? end]) → List<T>

Available on List<T>, provided by the ListUtilities extension

Removes and returns a range of elements from this list.
random([int? seed]) → T

Available on Iterable<T>, provided by the IterableUtilities extension

Returns a random value from the iterable.
reduce(Combine<E> combine) → 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
removeFirst() → T

Available on List<T>, provided by the ListUtilities extension

Removes the first element in this list.
removeFirstWhere(ListTester<T> test) → bool

Available on List<T>, provided by the ListUtilities extension

Removes the first element in this list that satisfies test.
removeFrom(int index, int count) → void

Available on List<T>, provided by the ListUtilities extension

Removes the number of elements defined by count, starting from index.
removeFromEnd(int count) → void

Available on List<T>, provided by the ListUtilities extension

Removes the number of elements defined by count from the end of the list.
removeLast() → E
Removes and returns the last object in this list.
override
removeLastWhere(ListTester<T> test) → bool

Available on List<T>, provided by the ListUtilities extension

Removes the last element in this list that satisfies test.
removeNull() → void

Available on List<T>, provided by the ListUtilities extension

Removes all null values from this list.
removeRandom([int? seed]) → T

Available on List<T>, provided by the ListUtilities extension

Removes and returns a random value from this list.
removeRange(int start, int end) → void
Removes a range of elements from the list.
override
removeWhere(Test<E> test) → void
Removes all objects from this list that satisfy test.
override
replaceRange(int start, int end, Iterable<E> replacement) → void
Replaces a range of elements with the elements of replacements.
override
resizeAndFill(int resizeBy, T fill) → void

Available on List<T>, provided by the ListUtilities extension

Resizes the list by resizeBy, setting the new elements to fill if resizeBy is positive, otherwise removing elements if resizeBy is negative.
resizeAndGenerate(int resizeBy, ListGenerator<T> generator) → void

Available on List<T>, provided by the ListUtilities extension

Resizes the list by resizeBy, setting the new elements with the generator if resizeBy is positive, otherwise removing elements if resizeBy is negative.
retainWhere(Test<E> test) → void
Removes all objects from this list that fail to satisfy test.
override
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
shift(int amount) → void

Available on List<T>, provided by the ListUtilities extension

Shifts the order of the elements by the provided amount.
shuffle([Random? random]) → void
Shuffles the elements of this list randomly.
override
singleWhere(Test<E> test, {OrElse<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(Test<E> test) → Iterable<E>
Creates an Iterable that skips leading elements while test is satisfied.
override
sort([Compare<E>? compare]) → void
Sorts this list according to the order specified by the compare function.
override
sublist(int start, [int? end]) → List<E>
Returns a new list containing the elements between start and end.
override
take(int count) → Iterable<E>
Creates a lazy iterable of the count first elements of this iterable.
override
takeWhile(Test<E> test) → 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 containing the same elements as this iterable.
override
toString() → String
A string representation of this object.
override
transform(int index, ListTransformer<T> transformer) → void

Available on List<T>, provided by the ListUtilities extension

Updates the element at index to the value returned by transformer.
transformAll(ListTransformer<T> transformer) → void

Available on List<T>, provided by the ListUtilities extension

Updates every element in the list to the value returned by transformer.
where(Test<E> test) → 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 +(List<E> other) → List<E>
Returns the concatenation of this list and other.
override
operator +(Iterable<T> other) → Iterable<T>

Available on Iterable<T>, provided by the IterableUtilities extension

Returns a new Iterable of the same type as this with other's elements appended to the end.
operator ==(Object other) → bool
The equality operator.
inherited
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