js获取往后一周的时间

完整代码

	getDate() {
				let base = new Date().getTime();
				let oneDay = 24 * 3600 * 1000;
				let dateList = [];
				let data = [Math.random() * 300];
				let time = new Date(base);
				dateList.push([time.getFullYear(), time.getMonth() + 1, time.getDate()].join('-'));
				for (let i = 1; i < 7; i++) { //控制需要的天数
					let now = new Date(base += oneDay); //这里控制往前一周还是往后一周
					dateList.push([now.getFullYear(), now.getMonth() + 1, now.getDate()].join('-'));
					data.push(Math.round((Math.random() - 0.5) * 20 + data[i - 1]));
				}
				let newdate = dateList.reverse();
                console.log(newdate)
			    //return newdate 
			},