TypeScript

Type system deep-dive, generics, decorators, utility types, React + TS patterns, and configuring strict mode for large codebases.

BeginnerTopics 1–10

·What is TypeScript
·Basic Types
·Type Inference
·Arrays & Tuples
·Objects & Interfaces
·Functions & Return Types
·Union & Intersection Types
·Type Aliases
·Enums
·any, unknown & never

Start Beginner →

IntermediateTopics 11–22

·Generics Basics
·Generic Constraints
·Utility Types
·Mapped Types
·Conditional Types
·Template Literal Types
·Classes & Access Modifiers
·Interfaces vs Type Aliases
·Index Signatures
·Type Narrowing
·Discriminated Unions
·Declaration Merging

Start Intermediate →

AdvancedTopics 23–33

·Decorators
·The infer Keyword
·Recursive Types
·Variadic Tuple Types
·The satisfies Operator
·tsconfig Deep Dive
·Declaration Files (.d.ts)
·Module Augmentation
·Custom Type Guards
·Covariance & Contravariance
·Type-Level Programming

Start Advanced →

PatternsTopics 34–42

·TypeScript with React
·TypeScript with Node.js & Express
·Runtime Validation with Zod
·The Builder Pattern
·Repository Pattern
·Dependency Injection
·Testing in TypeScript
·Migrating JS to TS
·TypeScript at Scale

Start Patterns →