layui开始时间小于结束时间

直接上代码

// var endDate= laydate.render({
        //     elem: '#end_time',//选择器结束时间
        //     type: 'datetime',
        //     min:"1970-1-1",//设置min默认最小值
        //     done: function(value,date){
        //         startDate.config.max={
        //             year:date.year,
        //             month:date.month-1,//关键
        //             date: date.date,
        //             hours: 0,
        //             minutes: 0,
        //             seconds : 0
        //         }
        //     }
        // });
        // //日期范围
        // var startDate=laydate.render({
        //     elem: '#start_time',
        //     type: 'datetime',
        //     max:"2099-12-31",//设置一个默认最大值
        //     done: function(value, date){
        //         endDate.config.min ={
        //             year:date.year,
        //             month:date.month-1, //关键
        //             date: date.date,
        //             hours: 0,
        //             minutes: 0,
        //             seconds : 0
        //         };
        //     }
        // });

        // 时间选择器初始化 开始时间
        laydate.render({
            elem: '#start_time',
            format: 'yyyy-MM-dd',
            done: function (value, date, endDate) {
                var startDate = new Date(value).getTime();
                var endTime = new Date($('#end_time').val()).getTime();
                if (endTime < startDate) {
                    layer.msg('结束时间不能小于开始时间');
                    $('#start_time').val('');
                }
            }
        })
        laydate.render({ //结束时间
            elem: '#end_time',
            format: 'yyyy-MM-dd',
            done: function (value, date, endDate) {
                var startDate = new Date($('#start_time').val()).getTime();
                var endTime = new Date(value).getTime();
                if (endTime < startDate) {
                    layer.msg('结束时间不能小于开始时间');
                    $('#end_time').val('');
                }
            }

        })