Contains utility functions and classes in the style of
dart:collection to make
working with collections easier.
The package contains functions that operate on lists.
It contains ways to shuffle a
List, do binary search on a sorted
various sorting algorithms.
The package provides a way to specify the equality of elements and collections.
Collections in Dart have no inherent equality. Two sets are not equal, even if they contain exactly the same objects as elements.
Equality interface provides a way to say define such an equality. In this
case, for example,
const SetEquality(const IdentityEquality()) is an equality
that considers two sets equal exactly if they contain identical elements.
Equalities are provided for
Maps, as well as
combinations of these, such as:
const MapEquality(const IdentityEquality(), const ListEquality());
This equality considers maps equal if they have identical keys, and the
corresponding values are lists with equal (
Utilities for "zipping" a list of iterables into an iterable of lists.
An interface and implementation of a priority queue.
The package contains classes that "wrap" a collection.
A wrapper class contains an object of the same type, and it forwards all methods to the wrapped object.
Wrapper classes can be used in various ways, for example to restrict the type of an object to that of a supertype, or to change the behavior of selected functions on an existing object.
Features and bugs
Please file feature requests and bugs at the issue tracker.
Help us keep the lights on
1.14.10 - Jun 12, 2018
- Remove uses of
- Fix various bugs, mainly in tests.
1.14.9 - Mar 20, 2018
- Fixed bugs where
MapValueSetdid not adhere to the contract laid out by
Map.castrespectively. The returned instances of these methods now correctly forward to the existing instance instead of always creating a new copy.
1.14.7 - Mar 13, 2018
- Only the Dart 2 dev SDK (
>=2.0.0-dev.22.0) is now supported.
- Added support for all Dart 2 SDK methods that threw
1.14.0 - Mar 26, 2017
CombinedListView, a view of several lists concatenated together.
CombinedIterableView, a view of several iterables concatenated together.
CombinedMapView, a view of several maps concatenated together.