dart:collection
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.
- Mixes-in
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
- isEmpty → bool
read-only
- isNotEmpty → bool
read-only
- iterator → Iterator<E>
read-only
- last → E
read-only
- length → int
read-only
- single → E
read-only
- hashCode → int
read-only, inherited
- The hash code for this object. [...]
- runtimeType → Type
read-only, inherited
- A representation of the runtime type of the object.
Methods
- add(E element) → bool
- addAll(Iterable<E> elements) → void
- cast<R>() → Set<R>
- clear() → void
- contains(Object element) → bool
- difference(Set<Object> other) → Set<E>
- intersection(Set<Object> other) → Set<E>
- lookup(Object object) → E
- remove(Object object) → bool
- removeAll(Iterable<Object> elements) → void
- retainAll(Iterable<Object> elements) → void
- toSet() → Set<E>
- toString() → String
- union(Set<E> other) → Set<E>
- any(bool test(E element)) → bool
inherited
- Checks whether any element of this iterable satisfies
test. [...] - containsAll(Iterable<Object> other) → bool
inherited
- Returns whether this Set contains all the elements of
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 concatentation of this iterable and
other. [...] - forEach(void f(E element)) → void
inherited
- Applies the function
f to each element of this collection in iteration order. - 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. [...] - map<T>(T f(E element)) → Iterable<T>
inherited
- Returns a new lazy Iterable with elements that are created by calling
f on each element of this Iterable in 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. [...]
- removeWhere(bool test(E element)) → void
inherited
- Removes all elements of this set that satisfy
test. - 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
count elements. [...] - skipWhile(bool test(E value)) → Iterable<E>
inherited
- Returns an
Iterable that skips leading elements while test is satisfied. [...] - take(int n) → Iterable<E>
inherited
- Returns a lazy iterable of the
count first 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. [...]
- 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 ==(dynamic other) → bool
inherited
- The equality operator. [...]