Dart Modern Features

If you're working with Dart 3.0 or later, this teaches you the modern syntax that actually matters: records for multiple return values, pattern matching for destructuring JSON and data shapes, switch expressions instead of verbose switch statements, and sealed classes for exhaustive type checking. It also covers the smaller wins like extension types for zero-cost wrappers, null-aware collection elements, and dot shorthands for enums. The regex patterns for discovering refactoring opportunities are genuinely useful. Honestly, if you learned Dart before 3.0 or you're still writing switch statements with breaks everywhere, this will save you from looking dated and make your code measurably cleaner.