Dart LanguageEasy20 XP3 min read
How do enhanced enums work in Dart 3?
TL;DR: Dart 2.17+ enhanced enums can have fields, constructors, methods, and implement interfaces — making them full class-like types rather than just named constants.
Full Answer
Traditional Dart enums were limited to named constants. Enhanced enums (Dart 2.17+) allow you to attach data and behavior to each enum value, similar to Kotlin sealed classes but with guaranteed exhaustiveness.
Code Examples
dartEnhanced enum with fields and methods
Output
Advanced 50 true Beginner: 10 XP Easy: 20 XP Intermediate: 30 XP Advanced: 50 XP Expert: 80 XP
Interview Tip
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Enhanced enums eliminate the need for separate 'extension on DifficultyLevel' or lookup maps. They're more readable and type-safe than string constants or integer constants.
#enums#enhanced-enums#dart-2-17#methods#fields