theparthee
Can you explain the Stream and Future lifecycle and handling complex async scenarios in Dart?
Last Updated: December 6, 2025A Future in Dart represents a single asynchronous computation that produces either a value or an error in the future....
How would you approach debugging performance bottlenecks in Dart applications?
Last Updated: December 6, 2025When I face performance bottlenecks in a Dart or Flutter application, my approach is systematic — I start with observation,...
Can you explain how to use dart:async for error handling in streams and futures?
Last Updated: December 6, 2025In Dart, the dart:async library provides powerful tools like Futures and Streams to handle asynchronous operations — and proper error...
How do you implement Dependency Injection (DI) in Dart?
Last Updated: December 6, 2025Dependency Injection (DI) in Dart is all about decoupling object creation from object usage — so that classes depend on...
What are extension methods in Dart, and when should you use them?
Last Updated: December 6, 2025Extension methods in Dart allow us to add new functionality to existing classes — even those that we don’t own...
How does Dart handle closures and lexical scoping?
Last Updated: December 6, 2025in Dart, closures are functions that can capture and remember variables from their surrounding lexical scope, even after that scope...
How does Dart manage compilation and deployment for mobile (Flutter) apps?
Last Updated: December 6, 2025Dart’s compilation model is key to knowing why Flutter apps are both fast and portable. Dart actually uses two different...
Can you explain how Dart’s null safety works, and how to handle nullable types?
Last Updated: December 6, 2025Dart’s null safety is one of its most important features because it helps prevent one of the most common runtime...
How do you write a unit test for asynchronous code in Dart?
Last Updated: December 6, 2025In Dart, unit testing asynchronous code is straightforward because the test package fully supports Future and async functions. The key...
How does Dart handle type inference, and when should you explicitly declare types?
Last Updated: December 6, 2025type inference is one of Dart’s strengths because it helps balance developer productivity and code safety. Dart uses a sound...