Module 1:

Setup

How to start a TypeScript project, configure it, and use a bundler like Vite. You'll set it up manually first so you understand what's happening, then do it again with a bundler so you know the fast way too.

Module 2:

Basic Types

Typing objects, arrays, type inference, and the difference between types and interfaces. This is where you start writing faster and catching bugs before your code runs.

Module 3:

Function Types

Parameters, return types, optional parameters, destructured and rest parameters, and typing variables as functions. Functions are the most common thing in programming, so there's a lot that goes into typing them.

Module 4:

Type Modifiers

Unions, intersections, readonly, keyof, typeof, and index types. Unions and intersections are the two you'll reach for most.

Module 5:

Advanced Types

Generics, as const and enums, tuples, and async functions. Most of the TypeScript you write day to day doesn't require generics. But when they show up, most developers freeze. The course ramps up slowly enough that by the time you get here, they actually make sense.

Module 6:

Built In Types

Pick, Omit, Partial, Required, ReturnType, Parameters, Record, Readonly, and Awaited. Most developers start repeating types everywhere as they write more TypeScript. These tools help you stop doing that.

Module 7:

Type Narrowing

Type guards, never type, unknown type, as casting, satisfies, discriminated unions, function overloads, and type predicate functions. These come up in interviews and can make you the go-to TypeScript person on your team.

Module 10:

Real World TypeScript

Debugging, importing types, declaration files, and two hands-on projects.