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11 changes: 3 additions & 8 deletions src/functions/DeepStrictObjectKeys.ts
Original file line number Diff line number Diff line change
Expand Up @@ -22,7 +22,7 @@ type Replace<S extends string> = S extends '[*]'
/** @internal Removes glob patterns (e.g., `'*'`, `'a.*'`) from a string union. */
type WithoutGlob<K extends string> = K extends '*' | `${string}.*` ? never : K;

type ReturnType<
type DeepStrictObjectKeysResult<
Target extends object,
Joiner extends { array: string; object: string } = { array: '[*]'; object: '.' },
> = [Target] extends [never]
Expand Down Expand Up @@ -52,12 +52,7 @@ type ReturnType<
export function deepStrictObjectKeys<
Target extends object,
Joiner extends { array: string; object: string } = { array: '[*]'; object: '.' },
>(target: Target): ReturnType<Target, Joiner> {
let joiner: Joiner = { array: '[*]', object: '.' } as Joiner;
if (joiner === undefined) {
joiner = { array: '[*]', object: '.' } as Joiner;
}

>(target: Target): DeepStrictObjectKeysResult<Target, Joiner> {
const response = [];
const keys = Object.keys(target);
response.push(...keys);
Expand All @@ -72,5 +67,5 @@ export function deepStrictObjectKeys<
}
}

return Array.from(new Set(response)) as ReturnType<Target, Joiner>;
return Array.from(new Set(response)) as DeepStrictObjectKeysResult<Target, Joiner>;
}