function safeJsonParse<T>(jsonString: string): T | null { try { const parsedData = JSON.parse(jsonString); if (typeof parsedData === 'object' && parsedData !== null) { return parsedData as T; } } catch (error) { console.error("JSONパースエラ</t>…

type SampleType = { id: number; name: string; } // 1 type OptionalSampleType1 = Partial<SampleType>; // 2 type OptionalSampleType2 = { [K in keyof SampleType]?: SampleType[K]; }</sampletype>