js获取当前时间并判断是星期几

    currentTime() {
      // 当前时间
      //年
      let year = new Date().getFullYear();
      year = year < 10 ? "0" + year : year;
      //月 月是从0开始获取的，所以要+1;
      let month = new Date().getMonth() + 1;
      month = month < 10 ? "0" + month : month;
      //日
      let day = new Date().getDate();
      day = day < 10 ? "0" + day : day;

      let hours = new Date().getHours();
      hours = hours < 10? "0" + hours : hours;

      let minutes = new Date().getMinutes();
      minutes = minutes < 10? "0" + minutes : minutes;

      let seconds = new Date().getSeconds();
      seconds = seconds < 10? "0" + seconds : seconds;

      const weekDays = ['星期天', '星期一', '星期二', '星期三', '星期四', '星期五', '星期六'];
      const today = new Date();
      const dayOfWeek = weekDays[today.getDay()];

      this.weatherData.week = dayOfWeek; // 这里返回的是星期
      this.weatherData.time = year + "年" + month + "月" + day +  "日" + " " + hours + ":" + minutes + ":" + seconds;
    },