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JavaScript & TypeScript

Utility Types

/juːˈtɪlɪti taɪps/

Definition

Built-in TypeScript generic types for common transformations: Partial<T>, Required<T>, Pick<T,K>, Omit<T,K>.

Example in context

"Partial<UserUpdate> makes all fields optional — useful for PATCH request types where any subset is valid."

Related terms

  • Generics — A TypeScript feature allowing functions, classes, and interfaces to work with multiple types while preserving type information.

Practice this term

Master Utility Types in context by working through exercises in the JavaScript & TypeScript module. You'll see the term used in real engineering scenarios with multiple-choice, fill-in-the-blank, and matching drills.

Practice in exercises → Browse all words

Frequently Asked Questions

What does "Utility Types" mean?

Built-in TypeScript generic types for common transformations: Partial<T>, Required<T>, Pick<T,K>, Omit<T,K>.

How do you pronounce "Utility Types"?

"Utility Types" is pronounced /juːˈtɪlɪti taɪps/.

Can you use "Utility Types" in a sentence?

"Partial<UserUpdate> makes all fields optional — useful for PATCH request types where any subset is valid."