TypeScript Quiz
Utility Types & Type Manipulation
Learn how built-in utility types (Partial, Omit, Pick, Record) work and how to construct conditional types, mapped types, and template literals.
Question 1 of 100%
How does the built-in `Partial<T>` utility type work under the hood?
javascript
type Partial<T> = { [P in keyof T]?: T[P]; };