SplayTreeSet<E> class
A Set of objects that can be ordered relative to each other.
The set is based on a self-balancing binary tree. It allows most operations in amortized logarithmic time.
Elements of the set are compared using the compare function passed in the constructor, both for ordering and for equality. If the set contains only an object a, then set.contains(b) will return true if and only if compare(a, b) == 0, and the value of a == b is not even checked. If the compare function is omitted, the objects are assumed to be Comparable, and are compared using their Comparable.compareTo method. Non-comparable objects (including null) will not work as an element in that case.
- Mixed in types
-
IterableMixin<
E> -
SetMixin<
E>
-
IterableMixin<
Constructors
- SplayTreeSet([int compare(E key1, E key2), bool isValidKey(dynamic potentialKey)])
- Create a new SplayTreeSet with the given compare function. [...]
- SplayTreeSet.from(Iterable elements, [int compare(E key1, E key2), bool isValidKey(dynamic potentialKey)]) factory
- Creates a SplayTreeSet that contains all
elements. [...] - SplayTreeSet.of(Iterable<
E> elements, [int compare(E key1, E key2), bool isValidKey(dynamic potentialKey)])factory - Creates a SplayTreeSet from
elements. [...]
Properties
- first → E read-only, override
- Returns the first element. [...]
- hashCode → int read-only, inherited
- The hash code for this object. [...]
- isEmpty → bool read-only, override
- Returns
trueif there are no elements in this collection. [...] - isNotEmpty → bool read-only, override
- Returns true if there is at least one element in this collection. [...]
- iterator → Iterator<
E> read-only, override - Returns a new
Iteratorthat allows iterating the elements of thisIterable. [...] - last → E read-only, override
- Returns the last element. [...]
- length → int read-only, override
- Returns the number of elements in this. [...]
- runtimeType → Type read-only, inherited
- A representation of the runtime type of the object.
- single → E read-only, override
- Checks that this iterable has only one element, and returns that element. [...]
Methods
- add(
E element) → bool override - Adds
valueto the set. [...] - addAll(
Iterable< E> elements) → voidoverride - Adds all
elementsto this set. [...] - any(
bool test(E element)) → bool inherited - Checks whether any element of this iterable satisfies
test. [...] - cast<
R> () → Set< R> override - Provides a view of this iterable as an iterable of
Rinstances. [...] - clear(
) → void override - Removes all elements from the set.
- contains(
Object? element) → bool override - Whether the collection contains an element equal to
element. [...] - containsAll(
Iterable< Object?> other) → boolinherited - Whether this set contains all the elements of
other. - difference(
Set< Object?> other) → Set<E> override - Creates a new set with the elements of this that are not in
other. [...] - elementAt(
int index) → E inherited - Returns the
indexth element. [...] - every(
bool f(E element)) → bool inherited - Checks whether every element of this iterable satisfies
test. [...] - expand<
T> (Iterable< T> f(E element)) → Iterable<T> inherited - Expands each element of this Iterable into zero or more elements. [...]
- firstWhere(
bool test(E value), {E orElse()}) → E inherited - Returns the first element that satisfies the given predicate
test. [...] - fold<
T> (T initialValue, T combine(T previousValue, E element)) → T inherited - 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> inherited - Returns the lazy concatenation of this iterable and
other. [...] - forEach(
void f(E element)) → void inherited - Applies the function
fto each element of this collection in iteration order. - intersection(
Set< Object?> other) → Set<E> override - Creates a new set which is the intersection between this set and
other. [...] - join(
[String separator = ""]) → String inherited - Converts each element to a String and concatenates the strings. [...]
- lastWhere(
bool test(E value), {E orElse()}) → E inherited - Returns the last element that satisfies the given predicate
test. [...] - lookup(
Object? object) → E? override - If an object equal to
objectis in the set, return it. [...] - map<
T> (T f(E element)) → Iterable< T> inherited - Returns a new lazy Iterable with elements that are created by calling
fon each element of thisIterablein iteration order. [...] - noSuchMethod(
Invocation invocation) → dynamic inherited - Invoked when a non-existent method or property is accessed. [...]
- reduce(
E combine(E value, E element)) → E inherited - Reduces a collection to a single value by iteratively combining elements of the collection using the provided function. [...]
- remove(
Object? object) → bool override - Removes
valuefrom the set. [...] - removeAll(
Iterable< Object?> elements) → voidoverride - Removes each element of
elementsfrom this set. - removeWhere(
bool test(E element)) → void inherited - Removes all elements of this set that satisfy
test. - retainAll(
Iterable< Object?> elements) → voidoverride - Removes all elements of this set that are not elements in
elements. [...] - retainWhere(
bool test(E element)) → void inherited - Removes all elements of this set that fail to satisfy
test. - singleWhere(
bool test(E value), {E orElse()}) → E inherited - Returns the single element that satisfies
test. [...] - skip(
int n) → Iterable< E> inherited - Returns an Iterable that provides all but the first
countelements. [...] - skipWhile(
bool test(E value)) → Iterable< E> inherited - Returns an
Iterablethat skips leading elements whiletestis satisfied. [...] - take(
int n) → Iterable< E> inherited - Returns a lazy iterable of the
countfirst elements of this iterable. [...] - takeWhile(
bool test(E value)) → Iterable< E> inherited - Returns a lazy iterable of the leading elements satisfying
test. [...] - toList(
{bool growable = true}) → List< E> inherited - Creates a List containing the elements of this Iterable. [...]
- toSet(
) → Set< E> override - Creates a Set containing the same elements as this iterable. [...]
- toString(
) → String override - A string representation of this object. [...]
- union(
Set< E> other) → Set<E> override - Creates a new set which contains all the elements of this set and
other. [...] - where(
bool f(E element)) → Iterable< E> inherited - Returns a new lazy Iterable with all elements that satisfy the predicate
test. [...] - whereType<
T> () → Iterable< T> inherited - Returns a new lazy Iterable with all elements that have type
T. [...]
Operators
- operator ==(
Object other) → bool inherited - The equality operator. [...]
© 2012 the Dart project authors
Licensed under the Creative Commons Attribution-ShareAlike License v4.0.
https://api.dart.dev/stable/2.13.0/dart-collection/SplayTreeSet-class.html