TypeScript Interview Questions

Q41 What is ambient declaration? ✓ Answered → Q42 What is module resolution? ✓ Answered → Q43 What is declaration file (.d.ts)? ✓ Answered → Q44 How does TypeScript handle async types? ✓ Answered → Q45 What is strictNullChecks? ✓ Answered → Q46 Explain optional chaining in TypeScript. ✓ Answered → Q47 What is template literal types? ✓ Answered → Q48 What is keyof operator? ✓ Answered → Q49 Explain structural typing. ✓ Answered → Q50 What is ES module interoperability? ✓ Answered → Q51 Explain TypeScript compiler architecture. ✓ Answered → Q52 How does type inference work internally? ✓ Answered → Q53 Explain advanced generics patterns. ✓ Answered → Q54 What is variance in TypeScript? ✓ Answered → Q55 Explain covariance and contravariance. ✓ Answered → Q56 What is recursive type? ✓ Answered → Q57 Explain deep readonly pattern. ✓ Answered → Q58 What is branded types? ✓ Answered → Q59 What is type-level programming? ✓ Answered → Q60 Explain distributed conditional types. ✓ Answered →