dart-use-pattern-matching

Implement Dart switch expressions, record destructuring, and object patterns.

2.8k|166|Updated Feb 25, 2026
One-click install
npx skills add https://github.com/flutter/agent-plugins --skill dart-use-pattern-matching-flutter
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: dart-use-pattern-matching
Source: https://github.com/flutter/agent-plugins/tree/main/skills/dart-use-pattern-matching
Command: npx skills add https://github.com/flutter/agent-plugins --skill dart-use-pattern-matching-flutter

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This skill addresses the complexity of handling conditional logic and data destructuring in Dart, helping developers replace verbose if-else chains with clean, expressive, and exhaustive pattern matching.

Core Features & Use Cases

  • Exhaustive Logic: Ensures all cases are handled when using sealed classes or enums, preventing runtime errors.
  • Data Destructuring: Simplifies the extraction of values from JSON, Records, and Objects in a single, readable step.
  • Use Case: Use this skill when refactoring complex state management or parsing API responses to ensure your code is both safer and more concise.

Quick Start

Apply the dart-use-pattern-matching skill to refactor the current file by replacing traditional switch statements with modern switch expressions and pattern matching.

Frequently Asked Questions about dart-use-pattern-matching

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

FAQPage Schema
How do I replace if-else chains with pattern matching in Dart?

You can replace verbose if-else chains in Dart by refactoring them into modern switch expressions and pattern matching. This transition allows you to implement exhaustive, type-safe control flow structures, ensuring cleaner and more readable code.

What is the best way to destructure JSON and records in Dart?

The best way to destructure JSON and records in Dart is by using advanced pattern matching techniques. Data destructuring allows you to extract values from complex objects, records, and JSON responses in a single, readable step.

How does pattern matching ensure exhaustive logic with sealed classes in Dart?

Pattern matching ensures exhaustive logic in Dart by forcing the compiler to check that all cases of sealed classes or enums are explicitly handled. This prevents runtime errors and guarantees type-safe conditional control flow.

Can I use Dart pattern matching for complex state management in Flutter?

Yes, you can use Dart pattern matching for complex state management in Flutter. It helps refactor conditional state logic into exhaustive, type-safe structures, making your state handling safer and more concise.

When should I use switch expressions instead of traditional switch statements in Dart?

You should use switch expressions in Dart when you need to transition from legacy conditional logic to exhaustive, type-safe control flow. They are particularly effective for complex data validation and transformation tasks.

Does Dart pattern matching support object patterns for data validation?

Yes, Dart pattern matching supports object patterns for data validation. It facilitates complex data validation and transformation tasks by allowing you to match and destructure object properties directly within type-safe control flow.