Season 02 · TypeScript · Intermediate
Welcome back to the house
The type layer over the JavaScript you already write, twelve weeks and twelve comps.
Standings
Reading the house feed...
Early Weeks
The basics that make everything else possible: annotations, shapes, and unions.
Jury Phase
Narrowing, generics, and typing the React and API code you already write every day.
Endgame
Discriminated unions, utility types, and the strict-mode playbook to take home with you.
The point of the season
12 weeks from “why is this red” to shipping strict mode on purpose.
Built as a teach-yourself guide: one idea per week, a written lesson in plain language, then a comp that will not let you fake it. No videos, no quizzes that test recall instead of understanding.