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Dart Basics

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Questions and Answers

Which company developed Dart?

Microsoft

Facebook

Google (correct)

Apple

What is the primary use of Dart?

Building websites

Building servers

Building mobile apps

All of the above (correct)

What is the file extension for Dart files?

.html

.java

.js

.dart (correct)

What is DartPad?

An online editor for Dart Signup and view all the answers

What is the starting point of a Dart program?

main function Signup and view all the answers

Which types have been mentioned in the text?

Int, double, Num, dynamic, String Signup and view all the answers

What does type inference allow the compiler to do?

Deduce the type of the variable Signup and view all the answers

How can you make a variable immutable in Dart?

Add const or final in front of the type annotation Signup and view all the answers

What is the purpose of type annotation in Dart?

To tell the compiler how you plan to use some data Signup and view all the answers

What are int, double, and num in relation to the Object type?

Subclasses or subtypes Signup and view all the answers

Study Notes

Dart Overview

Dart was developed by Google.

Primary Use of Dart

Dart is primarily used for web, mobile, and desktop applications.

Dart File Extensions

Dart files have a .dart file extension.

DartPad

DartPad is an online code editor and IDE for Dart that allows users to write, run, and debug Dart code in the browser.

Starting Point of a Dart Program

The main function is the starting point of a Dart program.

Types in Dart

The types mentioned in the text are int, double, and num.
These types are subtypes of the Object type.

Type Inference

Type inference allows the compiler to automatically determine the type of a variable.

Immutable Variables in Dart

A variable can be made immutable in Dart by using the final or const keyword.

Type Annotation in Dart

The purpose of type annotation in Dart is to explicitly specify the type of a variable, which helps in catching type-related errors at compile-time.

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Description

Test your knowledge on the basics of Dart, an object-oriented language developed by Google. This quiz covers chapters 1 and 2 of web and application development, including the introduction to Dart, its uses in building websites, servers, and mobile apps, and key features like libraries, the DartPad online editor, and compiling to JavaScript.