无法从JavaScript

Question

我正在尝试提取日期。我有JavaScript代码，我不知道我做错了什么。下面的代码中有一个开始日期和结束日期。

我需要从基于JavaScript的表单中选择日期。这两个功能和细节如下。请查看代码，并告诉我问题在哪里。

function valuation_date_from(maxDate) {
        var d = new Date();
        var startDate = d.getDate() + "/" + (d.getMonth() + 1) + "/" + d.getFullYear();
        var datepicker1 = {
            singleDatePicker: true,
            calender_style: "picker_3",
            timePicker: true,
            startDate: startDate,
            timePicker24Hour: true,
            minDate: startDate,
            timePickerIncrement: 5,
            format: 'DD/MM/YYYY h:mm a',
            onSelect:function(){
                alert();
            }
        };
        if (maxDate != '') {
            datepicker1.maxDate =PrevDay(maxDate);
        }
        $('#valuation_date_from').daterangepicker(datepicker1, function(start, end, label) {
           // console.log(start.format('DD/MM/YYYY h:mm a'));

            valuation_date_to(start.format('DD/MM/YYYY h:mm a'),$('#pricing_date_from').val());
            if($('#valuation_date_to').val()==""){
                pricing_date_from('',start.format('DD/MM/YYYY h:mm a'));
            }
            if($('#pricing_date_from').val()==""){
                pricing_date_to(start.format('DD/MM/YYYY h:mm a'));
            }
        });
    }

和日期：

function valuation_date_to(minDate,maxDate) {
        var d = new Date();
        var startDate = d.getDate() + "/" + (d.getMonth() + 1) + "/" + d.getFullYear();
        var datepicker2 = {
            singleDatePicker: true,
            minDate: startDate,
            startDate: nextDay(minDate),
            calender_style: "picker_3",
            timePicker: true,
            timePicker24Hour: true,
            timePickerIncrement: 5,
            format: 'DD/MM/YYYY h:mm a'
        };
        if (minDate != '') {
            datepicker2.minDate = nextDay(minDate);
        }
        if (maxDate != '') {
            datepicker2.maxDate = PrevDay(maxDate);
        }
        $('#valuation_date_to').daterangepicker(datepicker2, function(start, end, label) {
            valuation_date_from(start.format('DD/MM/YYYY h:mm a'));
            pricing_date_from($('#pricing_date_to').val(),start.format('DD/MM/YYYY h:mm a'));
            if($('#pricing_date_from').val()==""){
                pricing_date_to(start.format('DD/MM/YYYY h:mm a'));
            }
        });
    }

感谢任何帮助。感谢。