如何获取当前月份引导日期选择器 dd/mm/yyyy 的开始日期和结束日期

Question

我正在尝试以 dd/mm/yyyy 格式获取一个月引导日期选择器的当前开始日期和结束日期 例如，我日历中的当前月份是二月，那么我的值将是

start date:1/02/2017 
and 
end date:28/02/2017 

同时，如果我下个月是三月，那么我的情况将是

start date:1/03/2017 
and 
end date:31/03/2017 

我已经在控制台中输出了值，但我得到的是这个

29/1/2017
30/1/2017
31/1/2017
1/2/2017
2/2/2017

....
28/2/2017
...
11/3/2017

当前日期选择器中显示的日期列表

这是我的代码

  var active_dates = ["1/2/2017", "5/2/2017"];
        $('#datepicker').datepicker({
             inline: true,
             sideBySide: true,
             todayHighlight: true,
             format: 'dd/mm/yyyy',
             beforeShowDay: function (date) {
                var d = date;
                var curr_date = d.getDate();
                var curr_month = d.getMonth() + 1; //Months are zero based
                var curr_year = d.getFullYear();
                var formattedDate = curr_date + "/" + curr_month + "/" + curr_year
                console.log(formattedDate);
                if ($.inArray(formattedDate, active_dates) != -1) {
                    return {
                        classes: 'activeClass'
                    };
                }
                return;
            }
        });

Answer 1

I did fixed it with datejs

This is alerting the first day:

var fd = Date.today().clearTime().moveToFirstDayOfMonth();
var firstday = fd.toString("MM/dd/yyyy");
alert(firstday);

This is for last day:

var ld = Date.today().clearTime().moveToLastDayOfMonth();
var lastday = ld.toString("MM/dd/yyyy");
alert(lastday);