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dart-3-patterns

Apply Dart 3 pattern matching with switch statements and destructuring.

5|Updated Oct 14, 2025
Search Tags:#patterns#pattern matching#flutter#dart#switch#records#dart 3
One-click install
npx skills add https://github.com/reloveution/dart-flutter-rules --skill dart-3-patterns
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: dart-3-patterns
Source: https://github.com/reloveution/dart-flutter-rules/tree/main/skills/dart-3-patterns
Command: npx skills add https://github.com/reloveution/dart-flutter-rules --skill dart-3-patterns

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This Skill simplifies complex data handling and conditional logic in Dart by leveraging the advanced pattern matching features introduced in Dart 3, making code more readable, concise, and robust.

Core Features & Use Cases

  • Exhaustive Switches: Ensures all possible cases are handled, especially with enums and sealed classes, preventing runtime errors.
  • Data Destructuring: Easily extract values from lists, records, and objects into separate variables.
  • Conditional Logic: Write more expressive if-case statements for type checking and value extraction.
  • Use Case: When dealing with a Result type that can be either Success(data) or Error(message), use pattern matching to cleanly handle both outcomes and extract the relevant data or message.

Quick Start

Use the dart-3-patterns skill to demonstrate a switch statement with pattern matching on a sealed class.

Frequently Asked Questions about dart-3-patterns

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I use pattern matching in Dart 3 to destructure records and objects?▼

Dart 3 pattern matching uses switch statements and if-case expressions to extract values from records and objects into variables. This approach simplifies conditional logic and enables concise data deconstruction in modern Dart codebases.

What is the best way to handle exhaustive checks for sealed classes in Dart?▼

Exhaustive switch statements provide the best way to handle sealed classes in Dart. Pattern matching ensures all possible cases are explicitly addressed, preventing runtime errors and ensuring robust conditional logic evaluation.

Can I use if-case expressions for type checking and value extraction in Flutter?▼

Yes, Dart 3 if-case expressions support type checking and value extraction in Flutter. They allow you to write expressive conditional logic that simultaneously validates types and extracts relevant values from data structures.

How do I handle a Result type like Success or Error using Dart 3 switch expressions?▼

Use Dart 3 switch expressions to cleanly handle Result types like Success and Error. Pattern matching destructures the object, directly extracting the relevant data or message payload for simplified and robust error handling.

When do I need pattern matching for my Dart codebase?▼

You need pattern matching when handling complex data deconstruction, exhaustive checks, or simplified conditional logic in Dart. It facilitates modern Dart syntax adoption, making code more readable, concise, and robust.

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