Effective Dart Skill

This skill defines how to write idiomatic, high-quality Dart and Flutter code following Effective Dart guidelines.

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1. Naming Conventions

Kind	Convention	Example
Classes, enums, typedefs, type parameters, extensions	UpperCamelCase	MyWidget, UserState
Packages, directories, source files	lowercase_with_underscores	user_profile.dart
Import prefixes	lowercase_with_underscores	import '...' as my_prefix;
Variables, parameters, named parameters, functions	lowerCamelCase	userName, fetchData()

• Capitalize acronyms and abbreviations longer than two letters like words: HttpRequest, not HTTPRequest.
• Avoid abbreviations unless the abbreviation is more common than the full term.
• Prefer putting the most descriptive noun last in names.
• Use terms consistently throughout your code.
• Follow mnemonic conventions for type parameters: E (element), K/V (key/value), T/S/U (generic types).
• Consider making code read like a sentence when designing APIs.
• Prefer a noun phrase for non-boolean properties or variables.
• Prefer a non-imperative verb phrase for boolean properties or variables; prefer the positive form.
• Consider omitting the verb for named boolean parameters.
• Avoid starting a function or method name with get; prefer removing get and using a getter when the API conceptually exposes a property.

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2. Types and Functions