Super Dart Test - 62+ MCQs: Dart test: Assess Your Dart Programming Knowledge with Challenging Questions and Answers

1. In Dart, what is the 'call' constructor used for?

Handling exceptions

Defining constants

Implementing function invocation

Creating objects

2. What is the difference between 'var' and 'dynamic' in Dart?

They are interchangeable

Var is used for static typing, dynamic for dynamic typing

Dynamic is used for static typing, var for dynamic typing

They both represent constants

3. What is the purpose of the 'const constructor' in Dart?

Creating constant variables

Defining constants

Handling exceptions

Accessing class members

4. In Dart, what is the 'call()' method used for?

Handling exceptions

Defining constants

Implementing function invocation

Creating objects

5. What is the purpose of the 'finally' block in a try-catch statement in Dart?

Defining constants

Handling exceptions

Executing code regardless of exceptions

Creating objects

6. What is the purpose of the 'if' statement in Dart?

To conditionally execute code based on a boolean expression

To create a loop in Dart programming

To declare a function in Dart

To handle asynchronous operations in Dart

7. How do you declare a variable in Dart?

var variableName;

int variableName;

variable variableName;

declare variableName;

8. What is the purpose of the 'assert' statement in Dart?

To ensure that a given expression is true during development and testing

To define constants in Dart programming

To create conditional statements in Dart

To handle exceptions in Dart applications

9. What is the purpose of the 'Sync' in Dart's 'Future.sync'?

Handling exceptions

Managing asynchronous operations

Defining constants

Ensuring synchronous execution of the future

10. In Dart, how do you perform a conditional import?

Using 'if' statements

Using 'else' statements

Using 'import if' syntax

Using 'deferred' keyword

11. In Dart, how do you define a constant constructor for a class?

Using 'const' keyword before the constructor

Using 'static' keyword before the constructor

Adding 'final' keyword to the constructor parameters

Including 'const' keyword in the constructor body

12. What is the purpose of the 'new' keyword in Dart?

Creating instances of classes

Defining constants

Handling exceptions

Accessing class members

13. What is the purpose of the 'async' keyword in Dart?

Define asynchronous functions

Declare constants

Create static methods

Specify variable types

14. In Dart, what is the default value of an uninitialized variable?

null

undefined

false

15. What is the purpose of the 'late' keyword in Dart?

Deferring variable initialization

Creating constants

Handling exceptions

Accessing class members

16. What is the main purpose of the 'async' and 'await' keywords in Dart?

To handle asynchronous operations and improve code readability

To declare variables with asynchronous behavior

To create multi-threaded applications in Dart

To define generic types in Dart programming

17. What is the purpose of the 'const' keyword in Dart?

Defining constant variables

Creating classes

Handling exceptions

Accessing class members

18. Which Dart operator is used for null-aware assignment?

19. What is the purpose of the 'assert' keyword in Dart?

Creating objects

Checking conditions at runtime

Defining constants

Handling exceptions

20. What is the purpose of the 'sync*' function in Dart?

Handling exceptions

Managing asynchronous operations

Defining constants

Implementing synchronous generators

Dart MCQ Test 4