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TypeScript Types and Generics/Use `Record<K, T>`

Type objects whose keys all map to the same value type.

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Section: Utility Types

Use `Record<K, T>`

typescript
typescript
type FeatureFlag = "billing" | "search";
const flags: Record<FeatureFlag, boolean> = {
  billing: true,
  search: false,
};
Explanation

`Record` is often cleaner than a custom index signature.

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