TypeScript Advanced Patterns

TypeScript offers powerful type system features that can help you write more robust code. Let's explore some advanced patterns.

Conditional Types

Conditional types allow you to create types that depend on a condition:

type ApiResponse = T extends string
  ? { message: T }
  : { data: T };

Mapped Types

Mapped types let you create new types by transforming properties of existing types:

type Partial = {
  [P in keyof T]?: T[P];
};

Advanced TypeScript patterns can significantly improve your code's type safety and developer experience.