JavaScript 获取当前日期和三十天以前日期

function getThirtyDays() {
	   //获取当前日期
	  var myDate = new Date();
        var nowY = myDate.getFullYear();
        var nowM = myDate.getMonth()+1;
        var nowD = myDate.getDate();
        var enddateStr = nowY+"-"+(nowM<10 ? "0" + nowM : nowM)+"-"+(nowD<10 ? "0"+ nowD : nowD);//当前日期
		var enddate = new Date(enddateStr);


        //获取三十天前日期
        var lw = new Date(myDate - 1000 * 60 * 60 * 24 * 30);//最后一个数字30可改，30天的意思
        var lastY = lw.getFullYear();
        var lastM = lw.getMonth()+1;
        var lastD = lw.getDate();
        var startdateStr =lastY+"-"+(lastM<10 ? "0" + lastM : lastM)+"-"+(lastD<10 ? "0"+ lastD : lastD);//三十天之前日期
		var startDate = new Date(startdateStr);

		const dateList = []
		while(true) {
			startDate.setDate(startDate.getDate() + 1)
			if (startDate.getTime() <= enddate.getTime()) {
				if (startDate.getDate() < 10) {
					// startDate.getFullYear() 获取年，此处没加上年份
					dateList.push((startDate.getMonth()+1) + '.0' + startDate.getDate())
				} else {
					dateList.push((startDate.getMonth()+1) + '.' + startDate.getDate())
				}
			} else {
				break
			}
		}
		return dateList;
   }