js 获取当前日期周一和周日

//格式化日期：yyyy-MM-dd
function formatDate(date) {
    var myyear = date.getFullYear();
    var mymonth = date.getMonth() + 1;
    var myweekday = date.getDate();
 
    if (mymonth < 10) {
        mymonth = "0" + mymonth;
    }
    if (myweekday < 10) {
        myweekday = "0" + myweekday;
    }
    return (myyear + "-" + mymonth + "-" + myweekday + " 23:59:59");
} 

        var now = new Date();
        var nowTime = now.getTime() ;
        var day = now.getDay();
        var oneDayTime = 24*60*60*1000 ;
        var MondayTime = nowTime - (day-1)*oneDayTime ;//显示周一
        var SundayTime =  nowTime + (7-day)*oneDayTime ;//显示周日
        console.log(formatDate(new Date(MondayTime)));
        console.log(formatDate(new Date(SundayTime))) ;

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