https://github.com/avdosev/itertools_dart

Simple package for easy work with Dart iterators just like Python itertools.
https://github.com/avdosev/itertools_dart

dart flutter iterators itertools

Last synced: 4 months ago
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Simple package for easy work with Dart iterators just like Python itertools.

• Host: GitHub
• URL: https://github.com/avdosev/itertools_dart
• Owner: avdosev
• License: mit
• Created: 2021-08-01T09:14:11.000Z (almost 5 years ago)
• Default Branch: master
• Last Pushed: 2022-04-05T08:19:11.000Z (about 4 years ago)
• Last Synced: 2025-10-23T03:42:32.718Z (8 months ago)
• Topics: dart, flutter, iterators, itertools
• Language: Dart
• Homepage: https://pub.dev/packages/itertools_dart
• Size: 39.1 KB
• Stars: 4
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • Changelog: CHANGELOG.md
  • License: LICENSE

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README

          
# itertools · ![build status](https://github.com/avdosev/itertools_dart/workflows/unittests/badge.svg)

Simple package for easy work with Dart iterators just like Python itertools.

Provide methods / functions:

* zip2/zip3/etc

* chain

* count

* enumerate / mapIndexed

* and other helpers

## Links

[Pub dev][pubdev]

[Documentation][docs]

[Issue tracker][tracker]

## Usage

```dart

import 'package:itertools/itertools.dart';

void main() {

  print(zip2(['H', ',', 'a', 'l'], ['i', ' ', 'l', '!'])

      .starmap((first, second) => first + second)

      // equal:

      // .map((e) => e.item1 + e.item2)

      .join());

  // output: Hi, all!

  print(range(first: 1, last: 10, step: 3).reversed.toList());

  // output: [7, 4, 1]

  // or more compact

  print(1.to(10, step: 3).reversed.toList());

  // output: [7, 4, 1]

  print(chain(1.to(4), [4, 5], 1.to(4)).toList());

  // output: [1, 2, 3,  4, 5,  1, 2, 3]

}

```

## Features and bugs

Please file feature requests and bugs at the [issue tracker][tracker].

[tracker]: https://github.com/avdosev/itertools_dart/issues

[pubdev]: https://pub.dev/packages/itertools

[docs]: https://pub.dev/documentation/itertools/latest/