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| 1 # Async utilities package |
| 2 |
| 1 The `async` package will contain tools to work with asynchronous computations. | 3 The `async` package will contain tools to work with asynchronous computations. |
| 2 | 4 |
| 3 The package contains sub-libraries with different utilities. | 5 The package contains sub-libraries with different utilities. |
| 4 | 6 |
| 5 ### Zipping streams | 7 ### Zipping streams |
| 6 | 8 |
| 7 The "stream_zip.dart" sub-library contains functionality | 9 The "stream_zip.dart" sub-library contains functionality |
| 8 to combine several streams of events into a single stream of tuples of events. | 10 to combine several streams of events into a single stream of tuples of events. |
| 9 | 11 |
| 10 ### Results | 12 ### Results |
| 11 The "result.dart" sub-library introduces a `Result` class that can hold either | 13 The "result.dart" sub-library introduces a `Result` class that can hold either |
| 12 a value or an error. | 14 a value or an error. |
| 13 It allows capturing an asynchronous computation which can give either a value | 15 It allows capturing an asynchronous computation which can give either a value |
| 14 or an error, into an asynchronous computation that always gives a `Result` | 16 or an error, into an asynchronous computation that always gives a `Result` |
| 15 value, where errors can be treated as data. | 17 value, where errors can be treated as data. |
| 16 It also allows releasing the `Result` back into an asynchronous computation. | 18 It also allows releasing the `Result` back into an asynchronous computation. |
| 17 | 19 |
| 18 ### History. | 20 ### History. |
| 19 This package is unrelated to the discontinued `async` package with version 0.1.7
. | 21 This package is unrelated to the discontinued `async` package with version 0.1.7
. |
| 22 |
| 23 ## Features and bugs |
| 24 |
| 25 Please file feature requests and bugs at the [issue tracker][tracker]. |
| 26 |
| 27 [tracker]: https://github.com/dart-lang/async/issues |
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