bootstrap-datepicker学習のoptions

$('#id').datepicker({
        format: 'yyyy/mm/dd', //      
        container: 'body', //                  ,   body ,      css               
        autoclose: true, //            
        forceParse: true, //               
        maxViewMode: 4, //          ,   0（ ）、 、 、  、4（  ）。
        minViewMode： 0, //          
        startView: 0, //          ,         ,         
        multidate: false, //       
        multidateSeparator: ',' //           
        language: 'zh-CN', //    locales   zh-CN.js
        clearBtn: false, //                 
        todayBtn: true, //                 
        showWeekDays: true, //       
        weekStart: 0,//          ,0   
        todayHighlight: false, //         
        keyboardNavigation: true, //                
        disableTouchKeyboard: false, //                ,     .
        calendarWeeks: false, //       
        assumeNearbyYear: true, //               15 2015,97 1997;      20     20     
        datesDisabled: ['2019/04/10', '2019/04/11'], //           ,             ,         ,      format       .
        daysOfWeekDisabled: [], //              ,         , 0(   ) 6(   ),    '06' '0,6'    [0,6]       
        daysOfWeekHighlighted: [0, 6], //             ,   daysOfWeekDisabled     .
        defaultViewDate: new Date(2019, 1, 1), //             ,     ,     date,   (  format  ),  (  year:     ,month:0(  ),day:1(  ))
        beforeShowDay: function (date) {
            //           ,                              beforeShowDay  ;            
            //                 ,               css class  ,            
            var newDate = new Date(date);
            var today = new Date();
            if (today.toLocaleDateString() == newDate.toLocaleDateString()) {
                return {
                    enabled: true, //       
                    classes: 'calendarStyle', //        date class  ,         
                    tooltip: 'xxx', //   title    ,  xxx   title   ,                  (           ,      )
                    content: ' ' //     date          ,        
                }
            }
        },
        beforeShowMonth: function (date) {
            //                 beforeShowMonth  ,     12 .            
            var newDate = new Date(date);
            var today = new Date();
            if (newDate.getMonth() == today.getMonth()) {
                return {
                    enabled: true, //       
                    classes: 'calendarStyle', //           ,              ,             
                    tooltip: 'xxx' //   
                }
            }
        },
        beforeShowYear: function (date) {
            //                                  beforeShowYear  
            //  1           0 9             12 。
            //        2019 （2018     ），     2010-2019  2009 2020 12     
            var newDate = new Date(date);
            var today = new Date();
            if (newDate.getFullYear() == today.getFullYear()) {
                return {
                    enabled: true, //       
                    classes: 'calendarStyle', //           ,              ,             
                    tooltip: 'xxx' //   
                }
            }
        },
        beforeShowDecade: function (date) {
            //              12 ,          00 90     10   10 
            //        2019 ,     2000,2010,2020...2090,    1990,2100  12 
            var newDate = new Date(date);
            var today = new Date();
            if (newDate.getFullYear() < today.getFullYear()) {
                return {
                    enabled: true, //       
                    classes: 'calendarStyle', //           ,              ,             
                    tooltip: 'xxx' //   
                }
            }
        },
        beforeShowCentury: function (date) {
            //              12 ,          000 900     100   100 
            //        2019 ,     2000,2100,2200...2900,    1900,3000  12 
            var newDate = new Date(date);
            var today = new Date();
            if (newDate.getFullYear() == parseInt(today.getFullYear() / 100) * 100) {
                return {
                    enabled: true, //       
                    classes: 'calendarStyle', //           ,              ,             
                    tooltip: 'xxx' //   
                }
            }
        },
        startDate: '2019/04/01', //              
        endDate: new Date(Date.now() - 864000000), //    date     ,               
        enableOnReadonly: true, //    :true,           ,        
        immediateUpdates: true, //         ,  false,        ,                   ,                 .
    });