TypeScript Complete Interactive Guide
Master the type system from primitives to advanced generics — with with/without comparisons, MCQs, and coding challenges. Built for production developers.
Fundamentals
Master the building blocks: primitives, unions, narrowing, functions, objects, and the core utility types.
Generics & Patterns
Conditional types, infer, template literal types, discriminated unions, and production type patterns.
tsconfig & Build
Configure strictness, module resolution, paths, project references, and generate declaration files.
React & APIs
Type React components, hooks, and HOCs; generate types from OpenAPI, tRPC, Zod, and GraphQL.