SList<T> class

A doubly-linked list.

In the C++ STL, this matches exactly the behavior of std::list. It allows constant time O(1) insertion and deletion at both the front and back, as well as any point in the sequence if the logical node position is known. Does not provide fast random access (no operator[]).

Mixed-in types
Available extensions

Constructors

SList()
Creates an empty doubly-linked list.
SList.from(Iterable<T> elements)
Creates a doubly-linked list from an iterable.

Properties

first → T
The first element.
no setterinherited
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 setteroverride
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<T>
A new Iterator that allows iterating the elements of this Iterable.
no setteroverride
last → T
The last element.
no setterinherited
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
nonNulls → Iterable<T>

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

The non-null elements of this iterable.
no setter
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
single → T
Checks that this iterable has only one element, and returns that element.
no setterinherited
singleOrNull → T?

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

The single element of this iterator, or null.
no setter
wait → Future<List<T>>

Available on Iterable<Future<T>>, provided by the FutureIterable extension

Waits for futures in parallel.
no setter

Methods

accumulate(T init, [T op(T, T)?]) → T

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

Sums up or folds the elements in the range, starting with init.
adjacentDifference([T op(T, T)?]) → List<T>

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

Computes the differences between adjacent elements.
any(bool test(T 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.
back() → T
Retrieves the last element of the list. Throws a StateError if the list is empty.
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>() → Iterable<R>
A view of this iterable as an iterable of R instances.
inherited
clear() → void
Clears the list.
contains(Object? element) → bool
Whether the collection contains an element equal to element.
inherited
cppReduce([T op(T, T)?]) → T

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

Computes a result using an operation over the elements.
elementAt(int index) → T
Returns the indexth element.
inherited
elementAtOrNull(int index) → T?

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

The element at position index of this iterable, or null.
empty() → bool
Returns true if the list is empty.
every(bool test(T element)) → bool
Checks whether every element of this iterable satisfies test.
inherited
expand<T>(Iterable<T> toElements(T element)) → Iterable<T>
Expands each element of this Iterable into zero or more elements.
inherited
firstWhere(bool test(T element), {T orElse()?}) → T
The first element that satisfies the given predicate test.
inherited
fold<T>(T initialValue, T combine(T previousValue, T element)) → T
Reduces a collection to a single value by iteratively combining each element of the collection with an existing value
inherited
followedBy(Iterable<T> other) → Iterable<T>
Creates the lazy concatenation of this iterable and other.
inherited
forEach(void action(T element)) → void
Invokes action on each element of this iterable in iteration order.
inherited
front() → T
Retrieves the first element of the list. Throws a StateError if the list is empty.
innerProduct(Iterable<T> other, T init, {T op1(T, T)?, T op2(T, T)?}) → T

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

Computes the inner product (dot product) of two ranges.
join([String separator = ""]) → String
Converts each element to a String and concatenates the strings.
inherited
lastWhere(bool test(T element), {T orElse()?}) → T
The last element that satisfies the given predicate test.
inherited
map<T>(T toElement(T 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
partialSum([T op(T, T)?]) → List<T>

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

Computes the prefix sums (partial sums).
popBack() → void
Removes the last element from the list. O(1). Throws a StateError if the list is empty.
popFront() → void
Removes the first element from the list. O(1). Throws a StateError if the list is empty.
pushBack(T value) → void
Adds an element to the back of the list. O(1).
pushFront(T value) → void
Adds an element to the front of the list. O(1).
reduce(T combine(T value, T element)) → T
Reduces a collection to a single value by iteratively combining elements of the collection using the provided function.
inherited
remove(T value) → void
Removes all elements equal to value.
removeIf(bool test(T)) → void
Removes all elements for which test returns true.
reverse() → void
Reverses the list in place (O(N) time complexity).
singleWhere(bool test(T element), {T orElse()?}) → T
The single element that satisfies test.
inherited
skip(int count) → Iterable<T>
Creates an Iterable that provides all but the first count elements.
inherited
skipWhile(bool test(T value)) → Iterable<T>
Creates an Iterable that skips leading elements while test is satisfied.
inherited
swap(SList<T> other) → void
Exchanges the contents of this list with those of other.
take(int count) → Iterable<T>
Creates a lazy iterable of the count first elements of this iterable.
inherited
takeWhile(bool test(T value)) → Iterable<T>
Creates a lazy iterable of the leading elements satisfying test.
inherited
toList({bool growable = true}) → List<T>
Creates a List containing the elements of this Iterable.
inherited
toSet() → Set<T>
Creates a Set containing the same elements as this iterable.
inherited
toString() → String
A string representation of this object.
override
unique() → void
Removes consecutive duplicate elements.
where(bool test(T element)) → Iterable<T>
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.
override