TypeScript Tips and Tricks

TypeScript is a game-changer for large-scale JavaScript development. Here are some tips to help you write better code.

Utility Types

TypeScript provides several utility types that can simplify your code:

• Partial<T>
• Pick<T, K>
• Omit<T, K>

Discriminated Unions

Discriminated unions are a powerful way to handle complex state:

type State = 
  | { status: 'loading' }
  | { status: 'success', data: string }
  | { status: 'error', error: Error };

This ensures that you only access data when the status is success.