Object type with keys K and values V — dictionaries and maps of known keys. Prefer Map at runtime when keys are dynamic/frequent add-delete. Record is a type.

TypeScript · Utility Types · Junior · Concept

Record<K, V> use cases?

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Object type with keys K and values V — dictionaries and maps of known keys.

Detailed Explanation

Prefer Map at runtime when keys are dynamic/frequent add-delete. Record is a type.

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What does Partial<T> do?
Pick vs Omit?
Required and Readonly?
ReturnType and Parameters?
NonNullable and Awaited?

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