Dart Programming Interview Questions and Answers
Question - 21 : - What are the types of list in dirt?
Answer - 21 : -
There are two types of list in Dirt that are given below:
- Fixed Length List : (length fixed)
- Growable List: (Length can change at runtime.
Answer - 22 : -
Map declaration syntax is:
var identifier = new Map()
Question - 23 : - Which command is used to compile dart into javascript?
Answer - 23 : -
The following command is used to compile Dart into JavaScript:
dart2js - - out=.js .dart
Question - 24 : - Does dart support comment?
Answer - 24 : -
Yes, Dart supports comment. There are two types of comment:
Single-line comments( // )
Multi-line comments ( /**/ )
Question - 25 : - What are the various types of operators in dart?
Answer - 25 : -
In Dart, there are various types of operators:
- Arithmetic Operators
- Equality and Relational Operators
- Type test Operators
- Bitwise Operators
- Assignment Operators
- Logical Operators
Answer - 26 : -
Dart is used in association with Flutter to create mobile apps. This is one of Dart's most popular applications nowadays. The fact that Dart and Flutter are cross-platform is a significant advantage. It means that instead of creating two different apps for iPhone and Android, you can create an app with simply one codebase. React Native, a cross-platform implementation of React is Flutter's closest competition.
Question - 27 : - What are the Features of Dart?
Answer - 27 : -
Dart is a Class-Based, Object-Oriented Language with Single Inheritance that follows C Style Syntax.
- Lexical scoping, closures and optional static types are also supported.
- Dart supports features such as refactoring, breakpoints, and virtual machines, and it comes with a Dart Editor and SDK for an integrated experience.
- Dart can be converted to javascript using the dart2js tool, which is extremely valuable because it allows it to work on all modern browsers with very little code and run on servers using the SDK's Virtual Machine.
Question - 28 : - What are the ways to execute a Dart Program?
Answer - 28 : -
The following are the methods for executing a Dart Program:
- Command-line
- Dart console applications
Question - 29 : - Define Dart language?
Answer - 29 : -
The Dart programming language is type-safe, and it employs static type checking to ensure that a variable's value always corresponds to the fixed type of the variable. This is sometimes referred to as "sound typing." Even though types are required, type annotations are unnecessary due to type inference. Dart's typing system is also versatile, allowing for the usage of a dynamic kind mixed with runtime checks, which can be beneficial for experimentation or for code that requires a lot of emotional behavior.
Question - 30 : - How will Google Dart get Popular?
Answer - 30 : -
Google is working hard to get Dart embraced by web developers and the community and provide support, tools, and an execution environment.
Google will enable Dart in Google Chrome by incorporating a native virtual machine, while Microsoft and Mozilla will be encouraged to follow suit.
Google will release a Cross Compiler that will convert Dart to ECMAScript 3 in browsers that aren't Dart. This will be a big step in integrating Dart Virtual Machine with all major browsers, and it may take some time.