Vensure HCM Interview Questions and Answers

Provider is a state management solution for Flutter applications.

• Provider is a package in Flutter that allows for the management of app state.

• It is a recommended way to manage state in Flutter applications.

• Provider uses the InheritedWidget to propagate changes down the widget tree.

• It helps in reducing boilerplate code and simplifies the process of managing state.

Provider, Riverpod, Bloc are popular state management techniques in Flutter due to their simplicity and efficiency.

• Provider: Easy to use, built-in with Flutter, good for small to medium-sized apps

• Riverpod: Improves upon Provider, offers better performance and scalability

• Bloc: Great for complex apps, separates business logic from UI, provides clear structure

Null safety is a feature in Flutter that helps prevent null pointer exceptions by making null values explicit.

• Null safety helps catch null pointer exceptions at compile time rather than runtime.

• It introduces new syntax like the 'late' keyword to indicate that a variable will be initialized before it's used.

• Null safety also includes the '!' operator to assert that a value is not null.

Asynchronous programming is a programming paradigm that allows multiple tasks to be executed concurrently, improving performance and responsiveness.

• Allows tasks to run concurrently without blocking the main thread

• Improves performance and responsiveness by handling tasks in the background

• Uses callbacks, promises, or async/await keywords to manage asynchronous operations