1 > 上周 2 3 ``` 4 function getSomeTimesWeekDate(Time = new Date()) { 5 let weekNum = Time.getDay(); //获取当前是周几 6 weekNum = weekNum == 0 ? 7 : weekNum; 7 let lastDate = new Date(Time.getTime() - weekNum * 24 * 60 * 60 * 1000); 8 let fitstDate = new Date(Time.getTime() - ((weekNum + 6) * 24 * 60 * 60 * 1000)); 9 let startDate = 10 `${fitstDate.getFullYear()}-${fitstDate.getMonth()+1<10?'0'+(fitstDate.getMonth()+1):fitstDate.getMonth()+1}-${fitstDate.getDate()<10?'0'+fitstDate.getDate():fitstDate.getDate()} 00:00:00` 11 let endDate = 12 `${lastDate.getFullYear()}-${lastDate.getMonth()+1<10?'0'+(lastDate.getMonth()+1):lastDate.getMonth()+1}-${lastDate.getDate()<10?'0'+lastDate.getDate():lastDate.getDate()} 23:59:59` 13 return [startDate, endDate] 14 } 15 16 ``` 17 18 19 20 21 22 > 上个月 23 24 25 ``` 26 function getSomeTimesMonthDate(Time = new Date()) { 27 let year = Time.getFullYear(); 28 let month = Time.getMonth(); 29 if (month == 0) { 30 month = 12; 31 year = year - 1; 32 } 33 if (month < 10) { 34 month = '0' + month; 35 } 36 let myDate = new Date(year, month, 0); //上个月的最后一天的开始 37 let startDate = `${year}-${month}-01 00:00:00`; 38 let endDate = `${year}-${month}-${myDate.getDate()} 23:59:59` 39 return [startDate, endDate] 40 } 41 42 43 ```
js获取某一个时间的上个月或者上一周的起始点
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