22 interview questions on Typescript - Overview for developers (2025)

12 votes1221 runs0 comment

11 votes1210 runs0 comment

9 votes1158 runs0 comment

7 votes1267 runs

7 votes1137 runs

7 votes686 runs1 comment

5 votes1182 runs0 comment

type-inference

5 votes1172 runs0 comment

5 votes1165 runs0 comment

5 votes1126 runs0 comment

configuration

4 votes1168 runs0 comment

4 votes1131 runs0 comment

3 votes1159 runs0 comment

3 votes1138 runs

configuration

tsconfig.json

3 votes1137 runs1 comment

2 votes244 runs1 comment

1 vote665 runs0 comment

Jakeat Nov 3, 2023

1 vote498 runs2 comments

1 vote161 runs0 comment

0 vote1137 runs2 comments

22 interview questions on Typescript - Overviewfor developers (2025)

Test your technical skills before an interview of Typescript - Overview with 22 corrected questions. Beginner, Intermediate or Expert level.

22 interview questions on Typescript - Overviewfor developers (2025)

Test your technical skills before an interview of Typescript - Overview with 22 corrected questions. Beginner, Intermediate or Expert level.

Which of the following utility types makes all properties of a given type optional?

Define a custom type that represents a coordinate with an x and y property of type number in Typescript

Typescript: What is the type of result?

Create a generic identity function that returns the passed value in Typescript

Write a generic interface in Typescript

Import an add function from a TypeScript module math.ts

Typescript: What is the inferred type of the result variable?

Typescript: What is the resulting type of MyType in the following TypeScript code?

Find the error in the following TypeScript code:

What file is used to configure TypeScript?

Explain the difference between the `any` and `unknown` types in TypeScript.

What is the result of compiling the following TypeScript code?

Create a utils namespace that contains a Logger class for handling logging.

Which configuration option in tsconfig.json allows specifying files to include in the compilation?

What is the main purpose of generics in TypeScript?

What is the resulting type of Exclude<string | number | boolean, number>?

What is a tuple in TypeScript?

Declare a string type variable in TypeScript

Write a function in TypeScript that takes a number as input and returns its square.

How to apply a class decorator to a TypeScript class?