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What are TypeScript utility types and how can they enhance code maintainability?
Discuss the utility types provided by TypeScript such as Partial, Pick, Record, etc. and their benefits in creating maintainable and type-safe code.
Answer
- Utility types allow manipulation of types in a concise way, reducing boilerplate code.
Partial<T>makes all properties of T optional, useful for creating update and patch types.Pick<T, K>creates a new type by picking properties K from type T, promoting reusability.- These types improve type safety, making the code more predictable and facilitating easier refactoring.