TypeScript Best Practices

TypeScript has become the de facto standard for building large-scale JavaScript applications. Here are some essential best practices to help you write better TypeScript code.

Type Definitions

Always define explicit types for your variables and functions:

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

function getUser(id: string): Promise {
  // Implementation
}

Common Pitfalls to Avoid

• Using 'any' type too liberally
• Not leveraging union types
• Ignoring type inference

Advanced Features

Make the most of TypeScript's advanced features:

• Generics for reusable components
• Utility types for type manipulation
• Conditional types for complex type logic