flext
library
Classes
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BoolList
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A space-efficient list of boolean values.
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CanonicalizedMap<C, K, V>
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A map whose keys are converted to canonical values of type
C.
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CaseInsensitiveEquality
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String equality that's insensitive to differences in ASCII case.
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CombinedIterableView<T>
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A view of several iterables combined sequentially into a single iterable.
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CombinedListView<T>
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A view of several lists combined into a single list.
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CombinedMapView<K, V>
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Returns a new map that represents maps flattened into a single map.
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DeepCollectionEquality
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Deep equality on collections.
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DefaultEquality<E>
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Equality of objects that compares only the natural equality of the objects.
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DelegatingIterable<E>
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An Iterable that delegates all operations to a base iterable.
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DelegatingList<E>
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A List that delegates all operations to a base list.
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DelegatingMap<K, V>
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A Map that delegates all operations to a base map.
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DelegatingQueue<E>
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A Queue that delegates all operations to a base queue.
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DelegatingSet<E>
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A Set that delegates all operations to a base set.
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Equality<E>
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A generic equality relation on objects.
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EqualityBy<E, F>
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Equality of objects based on derived values.
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EqualityMap<K, V>
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A Map whose key equality is determined by an Equality object.
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EqualitySet<E>
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A Set whose key equality is determined by an Equality object.
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HeapPriorityQueue<E>
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Heap based priority queue.
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IdentityEquality<E>
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Equality of objects that compares only the identity of the objects.
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IterableEquality<E>
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Equality on iterables.
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IterableZip<T>
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Iterable that iterates over lists of values from other iterables.
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ListEquality<E>
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Equality on lists.
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ListSlice<E>
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A list view of a range of another list.
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MapEquality<K, V>
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Equality on maps.
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MapKeySet<E>
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An unmodifiable Set view of the keys of a Map.
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MapValueSet<K, V>
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Creates a modifiable Set view of the values of a Map.
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MultiEquality<E>
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Combines several equalities into a single equality.
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NonGrowableListMixin<E>
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Mixin class that implements a throwing version of all list operations that
change the List's length.
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NonGrowableListView<E>
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A fixed-length list.
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PriorityQueue<E>
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A priority queue is a priority based work-list of elements.
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QueueList<E>
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A class that efficiently implements both Queue and List.
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SetEquality<E>
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Equality of sets.
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UnionSet<E>
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A single set that provides a view of the union over a set of sets.
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UnionSetController<E>
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A controller that exposes a view of the union of a collection of sets.
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UnmodifiableListView<E>
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An unmodifiable List view of another List.
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UnmodifiableMapMixin<K, V>
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Mixin class that implements a throwing version of all map operations that
change the Map.
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UnmodifiableMapView<K, V>
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View of a Map that disallow modifying the map.
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UnmodifiableSetMixin<E>
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Mixin class that implements a throwing version of all set operations that
change the Set.
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UnmodifiableSetView<E>
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An unmodifiable set.
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UnorderedIterableEquality<E>
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Equality of the elements of two iterables without considering order.
Functions
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binarySearch<E>(List<E> sortedList, E value, {int compare(E, E)?})
→ int
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Returns a position of the
value in sortedList, if it is there.
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compareAsciiLowerCase(String a, String b)
→ int
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Compares
a and b lexically, converting ASCII letters to lower case.
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compareAsciiLowerCaseNatural(String a, String b)
→ int
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Compares strings
a and b according to lower-case
natural sort ordering.
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compareAsciiUpperCase(String a, String b)
→ int
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Compares
a and b lexically, converting ASCII letters to upper case.
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compareAsciiUpperCaseNatural(String a, String b)
→ int
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Compares strings
a and b according to upper-case
natural sort ordering.
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compareNatural(String a, String b)
→ int
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Compares strings
a and b according to natural sort ordering.
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equalsIgnoreAsciiCase(String a, String b)
→ bool
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Checks if strings
a and b differ only on the case of ASCII letters.
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groupBy<S, T>(Iterable<S> values, T key(S))
→ Map<T, List<S>>
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Groups the elements in
values by the value returned by key.
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hashIgnoreAsciiCase(String string)
→ int
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Hash code for a string which is compatible with equalsIgnoreAsciiCase.
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insertionSort<E>(List<E> elements, {int compare(E, E)?, int start = 0, int? end})
→ void
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Sort a list between
start (inclusive) and end (exclusive) using
insertion sort.
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lastBy<S, T>(Iterable<S> values, T key(S))
→ Map<T, S>
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Associates the elements in
values by the value returned by key.
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lowerBound<E>(List<E> sortedList, E value, {int compare(E, E)?})
→ int
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Returns the first position in
sortedList that does not compare less than
value.
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mapMap<K1, V1, K2, V2>(Map<K1, V1> map, {K2 key(K1, V1)?, V2 value(K1, V1)?})
→ Map<K2, V2>
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Creates a new map from
map with new keys and values.
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maxBy<S, T>(Iterable<S> values, T orderBy(S), {int compare(T, T)?})
→ S?
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Returns the element of
values for which orderBy returns the maximum
value.
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mergeMaps<K, V>(Map<K, V> map1, Map<K, V> map2, {V value(V, V)?})
→ Map<K, V>
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Returns a new map with all key/value pairs in both
map1 and map2.
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mergeSort<E>(List<E> elements, {int start = 0, int? end, int compare(E, E)?})
→ void
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Sorts a list between
start (inclusive) and end (exclusive) using the
merge sort algorithm.
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minBy<S, T>(Iterable<S> values, T orderBy(S), {int compare(T, T)?})
→ S?
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Returns the element of
values for which orderBy returns the minimum
value.
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reverse<E>(List<E> elements, [int start = 0, int? end])
→ void
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Reverses a list, or a part of a list, in-place.
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shuffle(List elements, [int start = 0, int? end, Random? random])
→ void
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Shuffles a list randomly.
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stronglyConnectedComponents<T>(Map<T, Iterable<T>> graph)
→ List<Set<T>>
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Returns the strongly connected components of
graph, in topological
order.
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transitiveClosure<T>(Map<T, Iterable<T>> graph)
→ Map<T, Set<T>>
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Returns the transitive closure of
graph.
