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TypeScript Mastery — Learning Path ​

An engineer who wants to model domains precisely and use the type system to its full power.

Level: Advanced · Required: 50 articles (~8.3 h) · Optional: 13 articles (~3.0 h)

Difficulty of required articles: Foundational 35 · Intermediate 12 · Advanced 3.

Follow the sections in order. Articles link into docs/; each shows its difficulty and estimated reading time. Full prerequisites for any article are in its domain's graph.json (see GRAPH.md).

Milestones ​

  1. Reason about structural typing, assignability, and variance
  2. Write conditional, mapped, and template-literal types
  3. Model domains so illegal states are unrepresentable
  4. Achieve end-to-end type safety across the network boundary

Expected skills ​

By completing the required articles you should be able to:

  • Type-level programming and inference control
  • Sound domain modeling with the type system
  • Typing third-party code and ambient declarations
  • End-to-end type safety from schema to UI

Required articles ​

TypeScript ​

JavaScript ​

Forms & Validation ​

API Design & Contracts ​

Optional articles ​

Frontend Architecture ​

Build Systems & Tooling ​

React ​

State Management ​

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Frontend Engineering