Interfaces

Interfaces

Interfaces is a core part of TypeScript. In this case file you'll learn what it is, why it matters, and how to use it in real code.

Understanding interfaces well means you can read other people's TypeScript code with confidence, and avoid the most common beginner mistakes in this area.

Key points:

• What interfaces means in the context of TypeScript
• A minimal example you can run or read in the playground on the right
• A common mistake to avoid when working with interfaces

# TypeScript: Interfaces
# Reference material — read the notes on the left and follow along in your own environment.

Tip: Try changing a value in the code on the right and re-running it — small experiments are the fastest way to build real intuition for interfaces.