Learn TypeScript - Full Course for Beginners
freeCodeCamp.org
A two-hour TypeScript course from Scrimba, published on freeCodeCamp. You convert a small pizza ordering app from JavaScript to TypeScript and pick up the type system as you go. You can also take it interactively on Scrimba, where the code for each lesson lives.
What you'll learn
- Moving JavaScript code to TypeScript
- Defining custom and nested object types
- Literal types, unions and type narrowing
- Typing functions and return values
- Utility types such as Partial and Omit
