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edezekiel/index-signature_final.ts

Last active September 8, 2023 03:12
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Balance of type safety and flexibility using Record<string, unknown> with spread operator
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index-signature_final.ts
function parseObject(obj: Record<string, unknown>) {
let doesNotExist = obj['doesNotExist'];
doesNotExist.toString(); // Error: 'doesNotExist' is of type 'unknown'.ts(18046)
doesNotExist += 100; // Error: 'doesNotExist' is of type 'unknown'.ts(18046)
}
parseObject({ ...hero }); // Works
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