Mastering TypeScript

TypeScript is a powerful superset of JavaScript that adds static typing and other features to help you write more reliable code.

Why TypeScript?

TypeScript offers several advantages:

1. Static typing
2. Better IDE support
3. Early error detection
4. Enhanced code maintainability

Key Features

Type Annotations

TypeScript's core feature is adding type information to JavaScript:

let name: string = 'John';
let age: number = 30;
let isActive: boolean = true;

Interfaces

Interfaces help define object shapes:

interface User {
  id: number;
  name: string;
  email: string;
}

Best Practices

1. Use interfaces for object shapes
2. Enable strict mode
3. Avoid using 'any'
4. Write good type definitions