TypeScript Guide
A complete, modern, and practical TypeScript guide split into Basic, Advanced, and Practical sections with examples and clear lessons.
Generics in Functions and Interfaces
Learn how to write reusable and type-safe functions and interfaces using TypeScript generics.
Generic Constraints and Default Types
Learn how to restrict generics using constraints and set default types to make flexible functions safer and easier to use.
Utility Types – Partial, Pick, Omit, Record, and More
Go beyond Partial and Pick – explore TypeScript’s full set of utility types and learn to create your own custom helpers.
Mapped Types and keyof
Learn how to transform object types dynamically with mapped types and use keyof to reference property names safely.
Conditional Types and Infer Keyword
Learn how to build dynamic, logic-driven types in TypeScript using conditional types and the infer keyword.