https://github.com/dart-lang/collection

The collection package for Dart contains a number of separate libraries with utility functions and classes that makes working with collections easier.
https://github.com/dart-lang/collection

algorithms algorithms-and-data-structures dart data-structures

Last synced: about 2 months ago
JSON representation

The collection package for Dart contains a number of separate libraries with utility functions and classes that makes working with collections easier.

• Host: GitHub
• URL: https://github.com/dart-lang/collection
• Owner: dart-lang
• License: bsd-3-clause
• Created: 2015-02-24T09:58:44.000Z (over 9 years ago)
• Default Branch: master
• Last Pushed: 2024-07-01T23:27:09.000Z (3 months ago)
• Last Synced: 2024-07-21T03:06:29.551Z (2 months ago)
• Topics: algorithms, algorithms-and-data-structures, dart, data-structures
• Language: Dart
• Homepage: https://pub.dev/packages/collection
• Size: 564 KB
• Stars: 365
• Watchers: 44
• Forks: 85
• Open Issues: 59
• Metadata Files:
  • Readme: README.md
  • Changelog: CHANGELOG.md
  • Contributing: CONTRIBUTING.md
  • License: LICENSE
  • Authors: AUTHORS

Awesome Lists containing this project

• awesome-dart - collection - contains a number of separate libraries with utility functions and classes that makes working with collections easier.[<img src="https://travis-ci.org/dart-lang/collection.svg?branch=master">](https://travis-ci.org/dart-lang/collection) (Libraries / Utility)

README

        
[![Dart CI](https://github.com/dart-lang/collection/actions/workflows/ci.yml/badge.svg)](https://github.com/dart-lang/collection/actions/workflows/ci.yml)

[![pub package](https://img.shields.io/pub/v/collection.svg)](https://pub.dev/packages/collection)

[![package publisher](https://img.shields.io/pub/publisher/collection.svg)](https://pub.dev/packages/collection/publisher)

Contains utility functions and classes in the style of `dart:collection` to make

working with collections easier.

## Algorithms

The package contains functions that operate on lists.

It contains ways to shuffle a `List`, do binary search on a sorted `List`, and

various sorting algorithms.

## Equality

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.

The `Equality` interface provides a way to define such an equality. In this

case, for example, `const SetEquality(IdentityEquality())` is an equality

that considers two sets equal exactly if they contain identical elements.

Equalities are provided for `Iterable`s, `List`s, `Set`s, and `Map`s, as well as

combinations of these, such as:

```dart

const MapEquality(IdentityEquality(), ListEquality());

```

This equality considers maps equal if they have identical keys, and the

corresponding values are lists with equal (`operator==`) values.

## Iterable Zip

Utilities for "zipping" a list of iterables into an iterable of lists.

## Priority Queue

An interface and implementation of a priority queue.

## Wrappers

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][tracker].

[tracker]: https://github.com/dart-lang/collection/issues

## Publishing automation

For information about our publishing automation and release process, see

https://github.com/dart-lang/ecosystem/wiki/Publishing-automation.