TypeScript Interview Questions for Freshers
Preparing for your first TypeScript interviews? This set is curated for freshers and early-career developers (0–2 years): the 19 questions that come up most for entry-level roles, each with a clear answer, example code and follow-ups.
19 TypeScript questions
- 1Explain 'Function Overloads' vs 'Union Types' in API design.Intermediate
- 2Discuss 'Excess Property Checks' and how to bypass them safely.Intermediate
- 3What is 'String Enums' vs 'Literal Types' for API contract definitions?Intermediate
- 4What is the 'Omit' utility type and how is it implemented?Intermediate
- 5What is 'Partial' and how is it implemented under the hood?Intermediate
- 6Explain 'Nominal vs Structural' typing and how TS handles them.Intermediate
- 7Explain 'Type Predicates' and their use in custom Type Guards.Intermediate
- 8How does the 'Const Assertion' (as const) affect inference?Intermediate
- 9What is the 'satisfies' operator and how does it differ from type assertions?Intermediate
- 10What are Discriminated Unions and how do they improve type safety?Intermediate
- 11Explain the difference between 'interface' and 'type' alias.Intermediate
- 12What are the primary benefits of using TypeScript over plain JavaScript?Beginner
- 13TypeScript Interview Question 2 (Free)Intermediate
- 14TypeScript Interview Question 5 (Free)Intermediate
- 15TypeScript Interview Question 4 (Free)Beginner
- 16TypeScript Interview Question 1 (Free)Beginner
- 17TypeScript Advanced Interview Question 10Beginner
- 18TypeScript Advanced Interview Question 8Intermediate
- 19TypeScript Advanced Interview Question 7Beginner
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Frequently asked questions
Which TypeScript questions do freshers (0–2 years) get asked?
This page collects 19 TypeScript interview questions aligned with freshers (0–2 years), ranging across the difficulty levels that match that experience band.
How do I prepare for a TypeScript interview with my experience level?
Work through these questions in order, make sure you can explain each answer out loud, and pay attention to the real-world examples and follow-ups — interviewers at this level care as much about reasoning as the final answer.
Do the answers include code and examples?
Yes — answers include explanations, code examples where relevant, common mistakes to avoid and follow-up questions so you are ready for the full interview conversation.