js获取当前时间(昨天、今天、明天)-蒲公英云

js获取当前时间(昨天、今天、明天)

function writeCurrentDate() {
        var now = new Date();
        var year = now.getFullYear(); //得到年份
        var month = now.getMonth()<10 ? '0'+(now.getMonth()+1):(now.getMonth()+1);//得到月份
        var date = now.getDate()<10 ? '0'+now.getDate():now.getDate();//得到日期
        var time = ''+year+'-'+month+'-'+date+' 00:00:01';
        var day = now.getDay();//得到周几
        var hour = now.getHours();//得到小时
        var minu = now.getMinutes();//得到分钟
        var sec = now.getSeconds();//得到秒
　　     var MS = now.getMilliseconds();//获取毫秒
        var week;
        month = month + 1;
        if (month < 10) month = "0" + month;
        if (date < 10) date = "0" + date;
        if (hour < 10) hour = "0" + hour;
        if (minu < 10) minu = "0" + minu;
        if (sec < 10) sec = "0" + sec;
        if （MS < 100）MS = "0" + MS;
        var arr_week = new Array("星期日", "星期一", "星期二", "星期三", "星期四", "星期五", "星期六");
        week = arr_week[day];
        var time = "";
        time = year + "年" + month + "月" + date + "日" + " " + hour + ":" + minu + ":" + sec + " " + week;
        //当前日期赋值给当前日期输入框中（jQuery easyUI）
        $("#currentDate").html(time);
        //设置得到当前日期的函数的执行间隔时间，每1000毫秒刷新一次。
        var timer = setTimeout("writeCurrentDate()", 1000);
      }

获取本月最后一天

var now = new Date();
var cloneNowDate = new Date();
var fullYear = now.getFullYear();
var month = now.getMonth() + 1; // getMonth 方法返回 0-11，代表1-12月
var endOfMonth = new Date(fullYear, month, 0).getDate(); // 获取本月最后一天
function getFullDate(targetDate) {
                var D, y, m, d;
                if(targetDate) {
                    D = new Date(targetDate);
                    y = D.getFullYear();
                    m = D.getMonth() + 1;
                    d = D.getDate();
                } else {
                    y = fullYear;
                    m = month;
                    d = date;
                }
                m = m > 9 ? m : '0' + m;
                d = d > 9 ? d : '0' + d;
                return y + '-' + m + '-' + d;
            };
 var endDate = getFullDate(cloneNowDate.setDate(endOfMonth));//当月最后一天
 var starDate = getFullDate(cloneNowDate.setDate(1));//当月第一天