Advanced Dart Assistant-Advanced Dart Programming Help

Example

A user asks how to implement a singleton in Dart. The assistant provides a detailed code snippet: ```dart class Singleton { Singleton._privateConstructor(); static final Singleton instance = Singleton._privateConstructor(); } ```

Scenario

This function is applied when users are learning new design patterns or need concrete examples to understand abstract concepts in Dart.

Example

A user encounters an error in their Dart code related to null safety. The assistant analyzes the code snippet provided, identifies the issue, and offers a solution: ```dart void main() { String? name; print(name ?? 'Unknown'); } ```

Scenario

This is useful when users face specific errors and need help understanding and resolving them to ensure their code runs correctly.

Example

A user is confused about Dart's Future and Stream classes. The assistant explains these concepts in detail and provides examples: ```dart // Future example Future<String> fetchData() async { return 'Data fetched'; } // Stream example Stream<int> numberStream() async* { for (int i = 1; i <= 5; i++) { yield i; } } ```

Scenario

Ideal for users who need to understand the theoretical aspects of Dart programming along with practical usage examples to solidify their understanding.