TypeScript Interview Track

Type-level thinking: generics, narrowing, utility types and writing types that scale.

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Topics in recommended order

1Fundamentals8 questions2Generics & Utilities7 questions

Learning path

Follow the stages top to bottom. Nothing is locked — the order is simply what works.

  1. 1FundamentalsTypes vs interfaces, unions, narrowing.
  2. 2Generics & UtilitiesGeneric constraints, utility and mapped types.

Fundamentals

8 questions

Generics & Utilities

7 questions