js获取当前日期所在的周一到周日的日期，以及星期几

矫情吗；* 2023-03-01 13:27 43阅读 0赞

如图：

![20200726173011786.png][]

$(function () {
                var now = new Date("2020-1-1");
                var nowTime = now.getTime() ;
                var day = now.getDay() || 7;
                var oneDayLong = 24*60*60*1000 ;
    
                var MondayTime = nowTime - (day-1)*oneDayLong  ;
                var SundayTime =  nowTime + (7-day)*oneDayLong ;
    
                var monday = new Date(MondayTime);
    
                for (let i = 0; i<7;i++){
                    var tmpDate = new Date(MondayTime);
                    tmpDate=tmpDate.setDate(tmpDate.getDate()+i);
                    tmpDate=new Date(tmpDate);
                    console.log(tmpDate);
    
                    var mondayDateStr = (tmpDate.getMonth()+1)+'月';
                    mondayDateStr += tmpDate.getDate()+'日';
    
                    let days = tmpDate.getDay();
                    switch (days) {
                        case 1:
                            days = '星期一';
                            break;
                        case 2:
                            days = '星期二';
                            break;
                        case 3:
                            days = '星期三';
                            break;
                        case 4:
                            days = '星期四';
                            break;
                        case 5:
                            days = '星期五';
                            break;
                        case 6:
                            days = '星期六';
                            break;
                        case 0:
                            days = '星期日';
                            break;
                    }
                    mondayDateStr += days;
                    console.log(mondayDateStr) ;
                }
    
    
                var sunday = new Date(SundayTime);
                console.log(monday) ;
                console.log(sunday) ;
            });

[20200726173011786.png]: /images/20230208/24b89a504c88433e94be88bf3b20d6c6.png