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Languages & runtimes · #dart
Learn how to use const constructors in Flutter to implement constant folding, reducing unnecessary widget rebuilds and improving UI performance in deep widget trees.
When Android kills a backgrounded Flutter app, users lose their place. This post shows how to use RestorationMixin and RestorableProperty types to keep forms, navigation, and scroll positions intact across process death.
Learn how Dart’s sound null safety works, how to migrate existing code, and where the safety guarantees can still be broken if misused.
Flutter's UI isolate blocks frames when decoding large JSON synchronously. This post shows how to move that work to a background isolate with compute() or Isolate.run(), the sendable-type constraints, when the overhead isn't worth it, and how to verify the improvement on your own device.
Dart's sound null safety turns null-reference crashes into compile-time errors. This post walks through a JSON parsing example, shows how nullable types and the required keyword work, and outlines practical migration steps.
Dart 3 pattern matching lets you deconstruct objects and handle heterogeneous data in a single switch expression, cutting boilerplate and adding compile-time exhaustiveness checks.
Stop fighting runtime null crashes. Learn how Dart's sound null safety shifts error detection to compile-time, reducing boilerplate and increasing app stability.
Learn how to leverage Dart's sound null safety to eliminate runtime crashes, manage data boundaries with JS Interop, and avoid common pitfalls like the assertion operator.
Enable Dart’s sound null safety, migrate code, and avoid common pitfalls. This guide walks through SDK setup, migration steps, nullable and late types, and practical checks to keep your app free of null‑reference crashes.
flutter