如何将数组转为指定JS对象？flatpickr禁用数组为何失效？

问题1：将模板渲染生成的数组转换为指定格式的对象集合 #

我通过模板渲染获取到一个数组，代码如下：

var dateUnvailableCalendar = {{ datesUnvailable|json_encode|raw }};

希望将其转换为如下格式的对象集合：

{
    'from': '2023-03-06 00:00',
    'to': '2023-03-13 00:00'
},
{
    'from': '2023-03-01 00:00',
    'to': '2023-03-01 00:00'
}

请问该如何实现？

问题2：flatpickr的disable数组传入嵌套数组无法生效的原因 #

配置flatpickr日历组件时，直接在disable数组中写入上述格式的对象可正常禁用日期，有效代码如下：

calendar.flatpickr({
  disable: [
    function (date) {
      return date.getDay()===dayWeek[0]||
        date.getDay()===dayWeek[1]||
        date.getDay()===dayWeek[2]||
        date.getDay()===dayWeek[3]||
        date.getDay()===dayWeek[4]||
        date.getDay()===dayWeek[5]||
        date.getDay()===dayWeek[6]
    },
    {
      'from': '2023-03-06 00:00',
      'to': '2023-03-13 00:00'
    },
    {
      'from': '2023-03-01 00:00',
      'to': '2023-03-01 00:00'
    }
  ],
  minDate: "today",
  onChange: function (selectedDates, dateStr) {
    calendarHandleChange(dateStr);
  }
});

但将上述对象数组作为disable的一个元素传入时却无法生效，无效代码如下：

calendar.flatpickr({
    disable: [
        function(date) {
            return date.getDay() === dayWeek[0] ||
                date.getDay() === dayWeek[1] ||
                date.getDay() === dayWeek[2] ||
                date.getDay() === dayWeek[3] ||
                date.getDay() === dayWeek[4] ||
                date.getDay() === dayWeek[5] ||
                date.getDay() === dayWeek[6]
        },
        [
            {"from":"2023-03-06 00:00","to":"2023-03-13 00:00"},
            {"from":"2023-03-01 00:00","to":"2023-03-01 00:00"}
        ]
    ],
    minDate: "today",
    onChange: function (selectedDates, dateStr) {
        calendarHandleChange(dateStr);
    }
});

请问这是什么原因？

内容的提问来源于stack exchange，提问作者CHRISCOM