날짜를 함수로 만들어 import하여 사용

export const getDate = (createdAt) => {
  const date = new Date(createdAt);
  const yyyy = date.getFullYear();
  const mm = String(date.getMonth() + 1).padStart(2, "0");
  const dd = String(date.getDate()).padStart(2, "0");
  return `${yyyy}.${mm}.${dd}`;
};