🟦Beginner

TypeScript Essentials

JavaScript with types. Catch bugs before they run and build more reliable apps with type safety.

6 modules · 23 lessons · 23 lessons

₦3,000

What you'll learn

6 modules · 23 lessons

Module 1Getting started4 lessons

Adding types

Type inference

The compiler

Module 2Core types5 lessons

Primitive types

Arrays & tuples

Objects & optional properties

Union & literal types

any, unknown & null

Module 3Functions3 lessons

Typing functions

Optional & default parameters

Function types & callbacks

Module 4Shaping data4 lessons

Interfaces

Type aliases

Extending & composing types

Enums

Module 5Generics & narrowing4 lessons

Generics

Generic constraints

Utility types

Narrowing & type guards

Module 6In practice3 lessons

Editor tooling & DX

Common mistakes

Where to go next

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