Type-safe conversion of numeric-record to array for mapping in TSX (preserve literal keys and types)
5 months ago
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I have a TypeScript object that uses specific string literal keys with numeric values:
I want to render this in a React + TSX component using map, but preserve full type-safety so that:
- keys remain the literal union type "GOLD" | "SILVER" | "BRONZE" (not just string)
- values are inferred as number
- the resulting array is strongly typed for later use (e.g., sorting, filtering)
- no need to manually repeat the key union type
What is the cleanest, fully type-safe way to convert the object into an array suitable for .map() in TSX while preserving the literal key types? Provide a concise utility function and a usage example in a functional React component (TSX/MDX) that renders a list with proper keys.
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