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TypeScript Essentials
Add types to your JavaScript and catch bugs before they reach users.
IntermediateUpdated Sept 2026English
Taught by AssistedCareer Team
What you’ll learn
- Type functions, objects and APIs
- Use generics and utility types
- Configure TypeScript for real projects
Curriculum
2 modules · 6 lessons · 1h 8m
Type basics3 lessons · 32 min
The core type system.
- Why typesPreview8:00
- Annotating functions and objects12:00(available after enrolling)
- Unions and narrowing12:00(available after enrolling)
Types at scale3 lessons · 36 min
Patterns for real codebases.
- Generics12:00(available after enrolling)
- Utility types12:00(available after enrolling)
- tsconfig in practice12:00(available after enrolling)
What you’ll build
- Project 1
Typed API client
A fully typed wrapper around a REST API.
Before you start
- JavaScript fundamentals
Who this is for
- JavaScript developers
- React developers adopting TypeScript
About this course
Add types to your JavaScript and catch bugs before they reach users.
What's insideLink to this section
- Type basics: The core type system.
- Types at scale: Patterns for real codebases.
Your instructor
AssistedCareer Team
Sample instructor profile
Placeholder profile created by the seed script. Replace with your real instructors before launch.
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