Books
Learn HTML
Learn CSS
Learn Git
Learn Javascript
Learn PHP
Learn python
Learn Java
Exercises
HTML
JavaScript
Git
CSS
PHP
Courses
Quizzes
Snippets
Tools
General Tools
Password Generator
HTML Editor
HTML Encoder
Base 64
Code Diff
JSON Beautifier
CSS Beautifier
Markdown Convertor
Find the Closest Tailwind CSS Color
Phrase encrypt / decrypt
Browser Feature Detection
Number convertor
CSS Maker
CSS Maker
CSS Maker text shadow
CSS Maker Text Rotation
CSS Maker Out Line
CSS Maker RGB Shadow
CSS Maker Transform
CSS Maker Font Face
Color Tools
Color Picker
Colors CMYK
Colors HWB
Colors HSL
Color Hex
Color mixer
Color Converter
Colors RGB
Color Contrast Analyzer
Color Gradient
String Tools
String Length Calculator
MD5 Hash Generator
Sha256 Hash Generator
String Reverse
URL Encoder
URL Decoder
Base 64 Encoder
Base 64 Decoder
Extra Spaces Remover
String to Lowercase
String to Uppercase
Word Count Calculator
Empty Lines Remover
HTML Tags Remover
Binary to Hex
Hex to Binary
Rot13 Transform on a String
String to Binary
Duplicate Lines Remover
Change theme
Dark
Light
System
Books
Learn HTML
Learn CSS
Learn Git
Learn Javascript
Learn PHP
Learn python
Learn Java
How To
How To NodeJs
How To Linux
How To AngularJs
How To PHP
How To HTML
How To CSS
How To Symfony
How To Git
How To Apache
How To JavaScript
How To Java
How To Vue.js
How To Python
TypeScript Basics
1/25
What variable scopes are available in TypeScript?
Global Scope
Local Scope
Class Scope
All of the above
Next >
2/25
A typescript may be installed or managed through…
Tag
Nmp
Space
Void
Next >
3/25
The different Data Types supported by Typescript are...
Boolean let bValue: boolean = false;
String let name: string = "Jack";
Number let age: number = 16;
All of the above
Next >
4/25
What object oriented terms does Typescript support?
Interfaces
Classes
Modules
All of the above
Next >
5/25
Which of the following is a Typescript feature?
Typescript can be compiled to all major versions of Javascript(ES3,ES5,ES6,ES7).
Once can use Typescript for cross -browser development. It is an open source project.
Typescript is considered a superset of JavaScript, providing typed nature to the code.
All of the above.
Next >
6/25
The TypeScript components are....
TypeScript Compiler
TypeScript Language Service
TypeScript Language
All of the above
Next >
7/25
What are considered the types of access modifiers supported by TypeScript?
Public
Private
Protected
All of the above
Next >
8/25
What does Typescript use for anonymous functions?
"dot" syntax
"arrow" syntax
none of the above
Next >
9/25
How can TypeScript enhance code maintainability compared to JavaScript?
By enabling stronger typing
By executing faster
By reducing the number of lines of code
By incorporating more libraries
Next >
10/25
What TypeScript feature is used for defining a variable that can have one of a set of named constants?
Enum
Union type
Interface
Tuple
Next >
11/25
How does TypeScript enhance debugging in comparison to plain JavaScript?
By providing more detailed error messages during compile time
By eliminating the need for debugging
By automatically correcting syntax errors
By increasing runtime performance
Next >
12/25
What is the purpose of the 'readonly' keyword in TypeScript?
To make a variable immutable
To make a variable mutable
To declare a constant value
To declare a variable with global scope
Next >
13/25
Which TypeScript feature allows for specifying an exact set of string values a variable can hold?
Generics
Enums
String Literal Types
Interfaces
Next >
14/25
Which is not a valid way to declare a variable in TypeScript?
let
const
var
def
Next >
15/25
What TypeScript feature allows for defining a contract for a class to implement?
Interfaces
Types
Classes
Decorators
Next >
16/25
In TypeScript, what is a Tuple?
A type of function
An array with fixed number of elements
A JSON object
A method for type casting
Next >
17/25
In TypeScript, how do you annotate a variable of a custom type?
Using the 'type' keyword
By specifying the type after the variable name
Using the 'var' keyword
Type annotation is not supported
Next >
18/25
Which of the following is true about TypeScript's compatibility with JavaScript?
TypeScript is incompatible with JavaScript
TypeScript can use JavaScript libraries
JavaScript code must be rewritten to use in TypeScript
TypeScript does not support JavaScript syntax
Next >
19/25
What TypeScript feature allows for specifying an array of multiple data types?
Union Types
Generics
Enum
Any
Tuple
Next >
20/25
Which TypeScript utility type constructs a type by picking the set of properties from another type?
Partial
Omit
Pick
Record
Exclude
Next >
21/25
What TypeScript feature allows for custom type checks at compile time?
Type Guards
Interfaces
Decorators
Mixins
Next >
22/25
In TypeScript, which access modifier makes a member visible only within its containing class?
Public
Private
Protected
Static
Next >
23/25
Which TypeScript feature is used to describe the shape of an object?
Type alias
Interface
Class
Function
Next >
24/25
In TypeScript, what is the purpose of the 'keyof' keyword?
To create an enum
To specify a generic constraint
To define a method
To declare a variable
Next >
25/25
What TypeScript feature allows you to conditionally select a type?
Union types
Conditional types
Intersection types
Mapped types
Next >
To get the result of the quiz, please provide your email address (optional)..
Get Certificate
It seems you haven't answered any questions yet. Please provide your answers to proceed.