TS — Interfaces

Overview

Learn Interfaces in TS with a clear explanation and a practical example.

What you'll learn

• What Interfaces means
• When to use it
• How it works in practice
• A copy‑paste example

Syntax

const x: number = 1;

Example

function add(a:number,b:number){return a+b;}
console.log(add(2,3));

Notes

• Test the example in the Playground.
• Start simple, then expand.

Mistakes

• Mixing up the syntax.
• Not testing the output.

Try: Open the Playground: /en/playground/html