TypeScript Online Test

1. String and Boolean

2. String and Number

3. Number and Boolean

4. Number and Number Array

Correct Answer : B

1. noImplicitAny

2. noAutoType

3. Implicit = FALSE

4. autoTypeAssignment = FALSE

Correct Answer : A

1. Typescript can be compiled to all major versions of Javascript(ES3,ES5,ES6,ES7)

2. Typescript can be used for cross "“browser development and is an open source project

3. Typescript is a superset of JavaScript that provides typed nature to your code

4. All of the above

Correct Answer : D

1. method

2. function

3. constructor

4. class

Correct Answer : D

1. strongly typed

2. object oriented

3. compiled language

4. All of the above

Correct Answer : D

1. A method that is called when the object is being constructed

2. An object that was recently initialized

3. A variable that contains a newly constructed object

4. A method that is constructing different types of objects

Correct Answer : A

1. Modules

2. Classes

3. Method

4. Arrow

Correct Answer : A

1. A variable name should contain alphabets and numeric digits

2. It cannot contain spaces and special characters except underscore (_) and dollar ($) sign

3. A variable name cannot begin with a digit

4. All

Correct Answer : D

1. Declare

2. Let

3. Dim

4. define

Correct Answer : B

1. Modules

2. Classes

3. Interfaces

4. All of these

Correct Answer : D

1. It helps in code structuring

2. Use class-based object-oriented programming

3. Impose coding guidelines

4. All of the above

Correct Answer : D

1. True

2. False

Correct Answer : A

1. These modes only affect the emit stage - type checking is unaffected

2. The output of react mode will have a .jsx file extension

3. The react mode will emit React.addElement

4. The preserve mode will keep the JSX as part of the output to be further consumed by another transform step

Correct Answer : D

1. const ourTuple = [101]

2. const ourTuple = ['Coding God', 101]

3. const ourTuple = [101, 101, 'Coding God', 'Coding God']

4. const ourTuple = [101, 'Coding God']

Correct Answer : D

1. Java

2. JavaScript

3. C#

4. All of the above

Correct Answer : D

1. string

2. string | undefined

3. string | null

4. unknown

Correct Answer : B

1. noAutoType

2. noFalseyInits

3. strictChecksRequired

4. strictNullChecks

Correct Answer : D

1. Microsoft

2. Amazon

3. Facebook

4. Google

Correct Answer : A

1. Idolizing

2. Improving

3. Extending

4. Duplicating

Correct Answer : C

1. Strings

2. Booleans

3. Numbers

4. None of the above

Correct Answer : A

1. TypeScript is just another way to write JavaScript. It doesn’t fix the problems of JavaScript

2. One more tool to learn

3. TypeScript has a dependency on type definition files if you wish to use any existing JavaScript libraries

4. All of the above

Correct Answer : D

1. any[]

2. string[]

3. string

4. unknown[]

Correct Answer : A

1. Void

2. Space

3. Nmp

4. Tag

Correct Answer : D

1. Gradual

2. Dynamic

3. Duck

4. All of the above

Correct Answer : D

1. Case-sensitive

2. Case-insensitive

3. depends on the typescript version

4. None of the above

Correct Answer : C

1. Number type

2. Boolean type

3. Null type

4. All of these

Correct Answer : D

1. Typescript language

2. TypeScript compiler

3. Typescript main

4. TypeScript method

Correct Answer : A

1. never

2. similar

3. unknown

Correct Answer : C

1. .tst

2. .nod

3. .txt

4. .tt

Correct Answer : A

1. Makes you read it for better clean code

2. Allows only adding but not deleting elements in the array

3. Makes it private and can only be used in the file its created

4. Allows no changes and is there simply to be read from and not modified

Correct Answer : D