获取第几周

            getDateParam:function (date) {
                var nowDate =new Date(date.slice(0,10));//截取日期字符串转换问日期变量
                var theWeek = nowDate.getDay(); //当天为周几
                var daysOfMonth = nowDate.getDate(); //这个月的第几天
                var monthOfYear = nowDate.getMonth()+1; //今年的几月份
                var theYear = nowDate.getFullYear(); //
                var weekOfMonth = "";   //这个月的第几周
                var arr = ["日","一","二","三","四","五","六"];
                if(theWeek == 0){     //这天刚好是周日
                    weekOfMonth = Math.ceil(daysOfMonth/7);
                }else {
                    weekOfMonth = Math.ceil((daysOfMonth + 7 - theWeek)/7);
                }
                var theWeekStr = theWeek+"";
                theWeekStr ="周" + theWeekStr.replace(new RegExp(theWeekStr, "g"),arr[theWeek]);
                var dateParameter = {
                    "theWeekStr":theWeekStr,        //周几
                    "monthOfYear":monthOfYear<10 ? "0"+monthOfYear : monthOfYear,
                    "weekOfMonth":weekOfMonth+"",
                    "theYear":theYear+"",
                    "daysOfMonth":daysOfMonth<10 ? "0"+daysOfMonth : daysOfMonth,
                    "createDate":date.slice(0,10),
                }
                return dateParameter;
            }                
原文地址:https://www.cnblogs.com/longsiyuan/p/6927461.html