type Data = { id: number name: string price: number someSecret: string date: Date } const data: Data[] = [ { id: 1, name: 'りんご', price: 200, someSecret: 'xxx', date: new Date('2021-05-01') }, { id: 2, name: 'バナナ', price: 150, someSecret: 'xxx', date: new Date('2021-05-02') }, { id: 3, name: 'もも', price: 300, someSecret: 'xxx', date: new Date('2021-05-03') }, ] const fields = ['id', 'name', 'price'