TypeScript is a powerful, statically-typed superset of JavaScript that helps you write safer and more maintainable code.
We just posted a course on the freeCodeCamp.org YouTube channel that will help you master the essentials of TypeScript. In just one hour, you’ll learn everything from basic types and annotations to advanced features like generics and interfaces. The course walks through practical examples, helping you understand how TypeScript can make your code more robust, maintainable, and error-free.
Each section is structured to build your knowledge step by step, so you can follow along and code in real time. By the end, you’ll have a solid foundation in TypeScript and the confidence to use it in your own projects. Muhammad Omar Al Najjar created this course.
Here are the sections in the course:
Intro & What Is TypeScript?
Why Should You Learn TypeScript?
How TypeScript Works
Prerequisite
Setup
Create Your First Application
Running the Code
Configuration
Built-In Types
Type Annotations
Dynamic Type Determination
Any Type
Type Annotations With Objects
Type Annotations With Function
Optional and Default Parameters
Function Rest Parameter
Arrow Function
Anonymous Function
Void & Never
Union Types
Literal Types
Nullable Types
Type Alias
Intersection Type
Type Annotations With Arrays
Type Annotations With Multidimensional Arrays
Tuple
Enums
Interface
Interface Method and Parameters
Reopening Interfaces and Use Cases
Built-in Interface
HTMLImageElement
Interface vs. Type Aliases
Class Type Annotations
Class Access Modifiers
Class Accessors
Class Static Members
Class Implement Interface
Abstract Classes and Members
Polymorphism & Method Override
Class vs Interface
Generics
Generics Multiple Types
Generics Classes
Generics and Interfaces
Type Assertions
Debugging
Outro & What’s Next
Watch the full course on the freeCodeCamp.org YouTube channel (1-hour watch).
Source: freeCodeCamp Programming Tutorials: Python, JavaScript, Git & MoreÂ
