starter_architecture_flutter_firebase VS sdk

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Time Tracking app with Flutter & Firebase - an example app by Andrea Bizzotto

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Stream.pipe() method gives a way to pipe the streams into a stream consumer object. To do that, one must implement a new class using the StreamConsumer abstract class. A good use case can be found in tests/lib/async/slow_consumer_test.dart.

Future Test Suite source code directory, check all files prefixed by future*, where you will find all test cases, useful to have real world example.

Iterable test cases can be found in the files tests/corelib/iterable*.dart from Dart SDK.

Official Dart Website: this is the main entry-point for any Dart developpers, from beginners to advanced.

Let create a new project from scratch with dart create command and start edit the entry-point in bin/httpcat.dart. Before doing anything, one should probably read some unit test first, the ones present in tests/standalone/io/http_client_request_test.dart for example.

Note on sources: This guide draws on Learn Dart in Y Minutes (community tutorial; the bundled learndart.dart mixes teaching with legacy phrasing—prefer this guide + dart.dev for sound null safety facts) and Google’s archived Flutter codelab Intro to Dart for Java Developers (Bicycle → Rectangle → factories → functional iteration).

Google chose Dart as the programming language for specific technical reasons. Dart compiles to native ARM machine code on mobile, which means your production app runs at full speed without a JavaScript bridge or interpreter. During development, Dart's Just-in-Time (JIT) compiler powers Hot Reload, one of Flutter's standout features. You can change your code and see the result in under a second, without losing your app's state or restarting.

The Dart VM wiki describes this as pervasive late-binding. The program behaves as if method lookup happens at every call site. Field values stay preserved, though. Changing an initializer doesn't affect already-initialized variables. Closures capture their function when created and won't pick up changes.

Dart failed to become JS alternative because browser makers rejected native Dart VM for obvious reasons.

There have been lots of previous discussion about Darts strengthweaknesses and why Google chose Dart for Flutter. To sum it up, Darts strengths is JIT/AOT compilation, hot reload, concurrency, null safety to deliver performant UIs across platforms without JS interop or markup bridges.

Google tested other languages but stuck with Dart for its “UI as code” fluency, hot reload that preserves app state and native performance parity on mobile/web/desktop.

Of course, other frameworks and languages is catching up to features and DX that Dart and Flutter offers.

Even though Dart was meant for UIs, there is work being done to make it a viable option for backend dev as well, see Serverpod. Dart also finally implemented cross compilation this year which helps with shipping binaries to other machines.

https://github.com/dart-lang/sdk/issues/28617#issuecomment-2...