Dart Modern Features

1. When to use this skill

Use this skill when:

• Writing or reviewing Dart code targeting Dart 3.0 or later.
• Refactoring legacy Dart code to use modern, concise, and safe features.
• Looking for idiomatic ways to handle multiple return values, deep data extraction, or exhaustive checking.

Discovery

To find candidates for modernization:

Switch Expressions

Search for switch statements where every case assigns to the same variable or returns:

• Regex: switch\s*\([^)]+\)\s*\{\s*case