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TypeScript Intermediate
One level deeper into the type layer: generics machinery, discriminated unions and exhaustive checks, mapped types, declaration files, strict tsconfig flags and typed error handling.
Start learning ❯❯42 lessons · 12 topics · 0/42 completed
Course contents
Work top to bottom — the sidebar is the course. Topics later in the list assume the ones before them.
TypeScript Intermediate Introduction
Intermediate · ⏱ 5 min · standalone lesson
Generics in Depth
- TypeScript Generic Functions in Depth
- TypeScript Generic Constraints in Depth
- TypeScript Generic Defaults
- TypeScript Generic Interfaces in Depth
- TypeScript Generic Classes in Depth
- TypeScript keyof with Generics
Type Composition
- TypeScript Unions in Depth
- TypeScript Intersections in Depth
- TypeScript Discriminated Unions
- TypeScript Exhaustive Checking
- TypeScript Structural Typing
Narrowing in Depth
- TypeScript Narrowing in Depth
- TypeScript instanceof and the in Operator
- TypeScript Type Predicates
- TypeScript Assertion Functions
Classes in Depth
- TypeScript Class Modifiers in Depth
- TypeScript Getters and Setters
- TypeScript Abstract Classes
- TypeScript Static Members
- TypeScript Implements in Depth
Interfaces and Aliases
Start: TypeScript Interfaces in Depth ❯Mapped and Utility Types
- TypeScript Mapped Types
- TypeScript Utility Types in Use
- TypeScript Pick and Omit in Use
- TypeScript Record in Depth
- TypeScript Exclude, Extract and NonNullable
- TypeScript Function Type Utilities
Template Literal Types
Start: TypeScript Template Literal Types ❯Working with unknown
Start: TypeScript Unknown in Depth ❯Modules and Config
- TypeScript Modules in Depth
- TypeScript Declaration Files
- TypeScript tsconfig in Depth
- TypeScript Library Types
Error Handling
Start: TypeScript Typed Errors ❯TypeScript Project: Typed Data Layer
Intermediate · ⏱ 8 min · standalone lesson