TypeScript Mastery Course

Description

Write Code That Documents Itself and Catches Bugs Before They Happen

TypeScript has become the industry standard for serious JavaScript development — but most developers barely scratch the surface. The TypeScript Mastery Course is a focused, 6-week deep dive that takes you from “I know the basics” to “I architect type-safe systems with confidence.” If you’ve been using any as a crutch or fighting the compiler instead of letting it help you, this course will transform how you write code.

What You’ll Build

• Type-Safe API Client Library — A fully typed HTTP client with automatic request/response type inference, error discrimination, and runtime validation using Zod
• Plugin Architecture System — An extensible application framework using advanced generics, discriminated unions, and the builder pattern for type-safe plugin registration

Curriculum Overview — 12 Modules

Advanced Types (Weeks 1–2): Union and intersection types in depth, literal types and template literal types, conditional types and type inference with infer, mapped types and key remapping, recursive types and type-level programming

Generics Mastery (Weeks 3–4): Generic constraints and default type parameters, generic utility types (Partial, Required, Pick, Omit, Record), building custom utility types, generic function overloads, variance and covariance in generics

Patterns & Architecture (Weeks 5–6): Discriminated unions for state management, the builder pattern with type accumulation, branded types for domain modeling, module augmentation and declaration merging, strict configuration and compiler optimization, migrating large JavaScript codebases to TypeScript

What’s Included

• 12 focused modules on advanced TypeScript
• 60+ type-system challenges with increasing difficulty
• 2 architecture-focused projects
• AI-powered type analysis and suggestions
• Private TypeScript community channel
• Certificate of completion
• Lifetime access to all materials and future updates

Who This Is For

JavaScript developers ready to level up, React/Node developers who use TypeScript but want deeper understanding, tech leads establishing TypeScript standards for their teams, or anyone preparing for senior-level engineering interviews. Basic TypeScript or strong JavaScript knowledge recommended.