Quiz Progress: TypeScript Basic

1/20
Who developed and designed TypeScript?
- Amazon
- TypeScript
- Microsoft
- Oracle
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2/20
Which of the following is the typing principle of typescript?
- Duck
- Gradual
- Dynamic
- All of the above
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3/20
Which of the following is a filename extension for typescript?
- .tt
- .nod
- .txt
- .tsx
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4/20
Among which of the following computer programming language influenced the creation of typescript?
- Java
- JavaScript
- C#
- All of the above
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5/20
The followings are backported features of TypeScript, except which one?
- Arrows
- Classes
- Methods
- Modules
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6/20
What are the benefits of Typescript?
- It helps in code structuring.
- It imposes coding guidelines.
- It uses class based object oriented programming.
- All of the above.
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7/20
What are the variable scopes available in TypeScript?
- Local Scope
- Global Scope
- Class Scope
- All of the above
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8/20
What are variables in Typescript?
- A variable name cannot begin with a digit.
- A variable name should contain alphabets and numeric digits.
- It cannot contain spaces and special characters except underscore (_) and dollar ($) sign.
- All of the above.
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9/20
A typescript can be installed or managed through?
- Nmp
- Tag
- Space
- Void
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10/20
Which are the different Data Types supported by Typescript?
- Number var age: number = 16
- Boolean var bValue: boolean = false
- String var name: string = "jon"
- All of the above
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11/20
Which statements are true regarding JSX modes?
- These modes only affect the emit stage - type checking is unaffected.
- The preserve mode will keep the JSX as part of the output to be further consumed by another transform step.
- The output of react mode will have a .jsx file extension.
- The react mode will emit React.addElement.
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12/20
Which object oriented terms are supported by Typescript?
- Modules
- Classes
- Interfaces
- All of the above
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13/20
Which is a feature of Typescript?
- Typescript is a super set of JavaScript that provides typed nature to your code.
- Typescript can be compiled to all major versions of Javascript(ES3,ES5,ES6,ES7).
- Typescript can be used for cross -browser development and is an open source project.
- All of the above.
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14/20
..... are the way to organize code in TypeScript.
- Methods
- Modules
- Classes
- Arrows
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15/20
What are the components of TypeScript?
- TypeScript Compiler
- TypeScript Language
- TypeScript Language Service
- All of the above
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16/20
What are the types of access modifiers supported by TypeScript?
- Protected
- Private
- Public
- All of the above
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17/20
For anonymous functions TypeScript uses . . . ?
- "dot" syntax
- "arrow" syntax
- none
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18/20
Integers are represented by type
- Number
- Int
- Int32
- Int64
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19/20
What will be output of the following expression?
var a:string=47; console.log( " Value of a= " +a);
- Value of a=0
- Value of a=47
- Value of a=
- None of the above
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20/20
Can we use alert() in TypeScript?
- Yes
- No
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