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Flutter interview questions

Flutter interview questions.

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1.

When to use main Axis Alignment and cross Axis Alignment?

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2.

What is Flutter?

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3.

What is the difference between Expanded and Flexible widgets?

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4.

What is the pubspec.yaml file and what does it do?

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5.

Does Flutter work like a browser? How is it different from a WebView based application?

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6.

When should you use WidgetsBindingObserver?

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7.

What is the difference between "main()" and "runApp()" functions in Flutter?

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8.

What is an App state?

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9.

What is the pubspec.yaml file and what does it do?

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10.

What are the different build modes in Flutter?

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11.

What is Dart and why does Flutter use it?

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12.

How many types of widgets are there in Flutter?

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13.

How is Flutter different from a WebView based application?

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14.

What is a "widget" and mention its importance in Flutter?

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15.

What is Fat Arrow Notation in Dart and when do you use it?

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16.

Why do we pass functions to widgets?

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17.

What is Streams in Flutter/Dart?

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18.

What is release mode and when do you use it?

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19.

Differentiate between named parameters and positional parameters in Dart?

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20.

What is the difference between Scaffold and Container in Flutter?

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21.

What is ScopedModel / BLoC Pattern?

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22.

What are Null-aware operators?

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23.

What is profile mode and when do you use it?

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24.

What are packages and plugins in Flutter?

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25.

Do you know what Ephemeral state means?

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26.

Explain the different types of Streams?

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27.

Explain Navigator Widget and its push pop functions in Flutter?

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28.

How do you check if an async void method is completed in Dart?

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29.

Where are the layout files? Why doesn’t Flutter have layout files?

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30.

What are some pros of Flutter?

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31.

Why is the build() method on State and not Stateful Widget?

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32.

What are keys in Flutter and when to use it?

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33.

Differentiate StatelessWidget and StatefulWidget?

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34.

How is InheritedWidget different from Provider?

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35.

Differentiate between required and optional parameters in Dart

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36.

Differentiate between Hot Restart and Hot Reload?

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37.

What is debug mode and when do you use it?

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38.

When do we use double.INFINITY?

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39.

How to declare async function as a variable in Dart?

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40.

How is whenCompleted() different from then() in Future?

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41.

Name some cons of using Flutter?

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42.

How would you execute code only in debug mode?

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43.

How to duplicate repeating items inside a Dart list?

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44.

How to get difference of lists in Flutter/Dart?

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45.

What does "non-nullable by default" mean in Dart?

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46.

What is the difference between React Native and Flutter in-depth?

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47.

Explain async, await in Flutter/Dart?

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48.

What is the difference between double.INFINITY and MediaQuery?

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49.

What is Future in Flutter/Dart?

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50.

What is the purpose of SafeArea in Flutter?

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51.

What does a class with a method named ._() mean in Dart/Flutter?

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52.

When would you use App state or Ephemeral state over another?

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53.

What is a difference between these operators "?? and ?."

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54.

What is a MediaQuery in Flutter and when do we use it?

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55.

Why is exit(0) not preferred for closing an app?

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56.

What are Global Keys?

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57.

How does Dart AOT work?

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58.

What's the difference between async and async* in Dart?

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59.

What are some pros and cons of Scoped Model vs BLoC and vice versa?

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60.

What are the similarities and differences of Future and Stream?

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61.

Why should you use kReleaseMode instead of assert?

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62.

How to compare two dates that are constructed differently in Dart?

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63.

How do you convert a List into a Map in Dart?

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64.

Why Are StatefulWidget and State Separate Classes?

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65.

What is the difference between debug mode and profile mode?

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66.

Explain Stateful Widget Lifecycle in details

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67.

How is AnimationController different from Timer?

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68.

List some approaches for State management in Flutter

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I've worked for Microsoft, Google, Stripe, and received offers from many other companies. One thing I learned when I was interviewing myself is that standard interview tips are woefully inadequate.

Reverse Tech Interview: Questions to Stump an Interviewer

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11 Reactive Systems interview questions and answers for software engineers

Reactive systems are an architectural style that allows multiple individual applications to blend into one unit, reacting to their environment, while staying aware of each other. Here is a list of coding interview questions on Reactive Systems to help you get ready for your next data struc...

. Reactive Systems
34 Microservices interview questions and answers for software engineers

Microservice architecture – a variant of the service-oriented architecture structural style – arranges an application as a collection of loosely coupled services. In a microservices architecture, services are fine-grained and the protocols are lightweight. Here is a list of coding intervie...

. Microservices
7 Layering & Middleware interview questions for developers

Middleware in the context of distributed applications is software that provides services beyond those provided by the operating system to enable the various components of a distributed system to communicate and manage data. Middleware supports and simplifies complex distributed application...

. Layering & Middleware
55 Docker interview questions and answers for software engineers

Docker is a set of platform as a service products that use OS-level virtualization to deliver software in packages called containers. Here is a list of coding interview questions on Docker to help you get ready for your next data structures interview in 2021.

. Docker
23 Databases interview questions and answers for software engineers

A database is an organized collection of data, generally stored and accessed electronically from a computer system. Where databases are more complex they are often developed using formal design and modeling techniques. Here is a list of coding interview questions on Databases to help you g...

. Databases
21 Concurrency interview questions and answers for software engineers

In computer science, concurrency is the ability of different parts or units of a program, algorithm, or problem to be executed out-of-order or in partial order, without affecting the final outcome. Here is a list of coding interview questions on Concurrency to help you get ready for your n...

. Concurrency
13 CAP Theorem interview questions and answers for software engineers

In theoretical computer science, the CAP theorem, also named Brewer's theorem after computer scientist Eric Brewer, states that it is impossible for a distributed data store to simultaneously provide more than two out of the following three guarantees: Consistency: Every read receives the ...

. CAP Theorem
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