Section 01
TypeScript Basics
Syntax, primitives, arrays, objects, type aliases.
10 / 10 lessons
TS 5.x · intermediate
TypeScript track
Add static types to JavaScript. Catch bugs before they happen, build APIs your editor understands, and use the type system to enforce design.
Start the first lesson
72 of 72 lessons live
Section 02
Type System Essentials
Interfaces, unions, narrowing, the special types.
11 / 11 lessons
Section 03
Functions & Inference
Typing parameters, returns, overloads, callbacks, this.
10 / 10 lessons
Section 04
Generics
Generic functions, types, constraints, defaults, classes.
10 / 10 lessons
Section 05
Advanced Types
keyof, mapped, conditional, template-literal, utility types.
11 / 11 lessons
Section 06
OOP & Classes
Classes, modifiers, abstract, interfaces, decorators, enums.
10 / 10 lessons
Section 07
Real-World TypeScript
tsconfig, modules, .d.ts, frameworks, migrating, zod.
10 / 10 lessons