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

1. What is the purpose of the 'cascade' operator ('..') in Dart?

Performing arithmetic operations

Chaining method calls

Accessing class variables

Defining constants

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

3. What is the purpose of the 'covariant' keyword in Dart?

Ensuring type safety

Allowing more flexible type assignments

Handling exceptions

Defining constants

4. In Dart, what is the purpose of the 'is' keyword?

Defining variables

Checking the type of an object

Creating loops

Importing libraries

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

Deferring variable initialization

Creating constants

Handling exceptions

Accessing class members

6. What is the primary use of the 'print' function in Dart?

To output text to the console

To declare variables in Dart

To create loops in Dart programming

To handle exceptions in Dart

7. Which collection type in Dart does not allow duplicate elements?

List

Set

Map

Queue

8. Which Dart data type is used for representing integers?

int

integer

number

numeric

9. What is the purpose of the 'rethrow' keyword in Dart?

Creating objects

Handling exceptions

Re-throwing the current exception

Defining constants

10. What is the purpose of the 'mixin' keyword in Dart?

Defining variables

Implementing multiple inheritances

Creating instances of classes

Handling exceptions

Dart MCQ Test 5