THE FULL CURRICULUM

30 days. 30 concepts.
Zero cost.

Every day unlocks one flashcard lesson and a quiz. Spaced-repetition check-ins bring earlier days back so nothing you learn slips away.

Day 0 of 30 · 0% complete

Day 0

Before you start

▶Day 0: What TypeScript actually isContinue →

Week 1 · Foundations

Days 1–7

🔒Day 1: Primitive types

🔒Day 2: Type inference

🔒Day 3: Arrays and tuples

🔒Day 4: Union types

🔒Day 5: Object types, optional and readonly

🔒Day 6: Type aliases

🔒Day 7: Intersection types

Week 2 · Functions & Control Flow

Days 8–14

🔒Day 8: Interfaces

🔒Day 9: Declaration merging

🔒Day 10: Structural typing

🔒Day 11: Literal types

🔒Day 12: as const

🔒Day 13: Typing Functions

🔒Day 14: Narrowing in TypeScript

Week 3 · Advanced Types

Days 15–21

🔒Day 15: Type guards

🔒Day 16: Discriminated unions

🔒Day 17: any and unknown

🔒Day 18: never and exhaustiveness checking

🔒Day 19: Type assertions and satisfies

🔒Day 20: Enums

🔒Day 21: Generics

Week 4 · Real-World TypeScript

Days 22–28

🔒Day 22: Generic constraints

🔒Day 23: keyof and typeof

🔒Day 24: Indexed access types

🔒Day 25: Utility types: Partial, Required, Pick, Omit

🔒Day 26: Utility types: Record, ReturnType, Parameters, Awaited

🔒Day 27: Function types and overloading

🔒Day 28: Mapped types

Final Stretch

Days 29–30

🔒Day 29: Conditional types and infer

🔒Day 30: Template literal types

Continue — Day 0 →

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