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이준석 0.1-자료형-타입판별 제출합니다. #3

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이준석 0.1-자료형-타입판별 제출합니다. #3

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6 changes: 4 additions & 2 deletions level-00/0.1-자료형-타입판별/solution.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -18,6 +18,8 @@ export type TypeName =
| "undefined";

export function solution(value: unknown): TypeName {
// TODO: 구현하세요
throw new Error("아직 구현되지 않았습니다");
if (value === null) return "null";
else if (Array.isArray(value)) return "array";

return typeof value as TypeName;
}
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