时间戳获取与转换年月日

const [currentTimeStamp, setCurrentTimeStamp] = useState(Date.now());

const getYMD = (timeStamp) => {
    let date = new Date(timeStamp);
    let Y = date.getFullYear() + '/';
    let M = (date.getMonth() + 1 < 10 ? '0' + (date.getMonth() + 1) : date.getMonth() + 1) + '/';
    let D = date.getDate() < 10 ? '0' + date.getDate() : date.getDate();
    let strDate = Y + M + D;
    return strDate;
  };