TypeScript Developer interview question
Explain `void` as a return type and why a callback typed `() => void` can return a value.
The answer is available to members. Create a free account to see every answer, track which questions you're confident about and practise with timed mock interviews.
More most-asked TypeScript Developer questions
- Explain `any`, `unknown` and `never`.
- What are the differences between `interface` and `type` aliases?
- What is structural typing in TypeScript?
- What is type narrowing and what techniques does TypeScript support?
- What are discriminated unions and why are they powerful?
- What are generics and how do constraints work?
- Which built-in utility types do you use most, and what do they do?
- What is TypeScript and what problems does it solve?