Test Your TypeScript Basics Knowledge - Can You Ace Our 25-Question Quiz?

1/25 What is the typing principle of typescript?

2/25 All are backported features of TypeScript, except….

3/25 A typescript may be installed or managed through…

4/25 What object oriented terms does Typescript support?

5/25 What does Typescript use for anonymous functions?

6/25 Can alert() be used in TypeScript?

7/25 Which TypeScript feature allows for specifying types that cannot be extended or instantiated?

8/25 How can you declare a read-only property in a TypeScript class?

9/25 In TypeScript, which access modifier makes members accessible only within their declaring class?

10/25 What TypeScript feature enables conditional type checks?

11/25 What TypeScript feature is used for defining a variable that can have one of a set of named constants?

12/25 What is the primary use case for TypeScript decorators?

13/25 Which TypeScript feature allows for specifying an exact set of string values a variable can hold?

14/25 In TypeScript, which keyword is used to declare a constant variable?

15/25 What TypeScript utility type makes all properties of an object optional?

16/25 What TypeScript feature allows for defining a contract for a class to implement?

17/25 Which command is used to compile a TypeScript file?

18/25 In TypeScript, how do you annotate a variable of a custom type?

19/25 In TypeScript, which is used to define a variable that can hold any type but only one type once set?

20/25 In TypeScript, which of the following is a correct way to define an enum?

21/25 Which method is used to convert a TypeScript file to JavaScript?

22/25 Which is not a valid TypeScript data type?

23/25 In TypeScript, which operator is used for type assertions?

24/25 Which TypeScript feature allows you to work with variables of unknown types in a safe way?

25/25 How do you declare a readonly array in TypeScript?