dart-use-pattern-matching

What problem does it solve? Writing conditional logic in Dart often leads to verbose if-else chains, manual type casts, and missed cases when handling JSON data, records, or sealed class hierarchies. This Skill guides the correct use of Dart 3 pattern matching so code stays concise, type-safe, and exhaustive. ## Core Features & Use Cases - Pattern Selection Strategy: Choose the right pattern type (Map, List, Record, Object, Relational, Logical) based on the data structure being matched. - Switch Construct Guidance: Decide between switch expressions for value production and switch statements for side effects, with correct syntax rules. - Exhaustiveness Validation: Workflow for running dart analyze to catch non-exhaustive switch errors on sealed classes and enums. - Use Case: When parsing a JSON response like {'user': ['Lily', 13]}, use a single if (data case {'user': [String name, int age]}) check to validate structure and destructure values in one step instead of nested casts. ## Quick Start Refactor my Dart function that handles API responses to use switch expressions and sealed class pattern matching with exhaustive cases.