How to highlight specific dates in bootstrap datepicker?

Question

I am using bootstrap datepicker.I need to highlight some random dates.

For Example:

I need to highlight the dates like 1,3,8,20,21,16,26,30. Could you please tel

Answer 1

Based on @Hassan Raza answer's I've made this jsfiddle: https://jsfiddle.net/ToniBCN/mzke8tuv/

Set calendar to february 2019 to see some days in orange, others in green and the rest disabled, depending json data.

// In order to call bootstrap's datepicker instead of jquery object
// https://github.com/uxsolutions/bootstrap-datepicker
var datepicker = $.fn.datepicker.noConflict(); // return $.fn.datepicker to previously assigned value
$.fn.bootstrapDP = datepicker; // give $().bootstrapDP the bootstrap-datepicker functionality

$.fn.bootstrapDP.defaults.format = "dd/mm/yyyy";
$.fn.bootstrapDP.defaults.startDate = '01/01/2019'

$.fn.bootstrapDP.defaults.beforeShowDay = function(date) {

  // in order to get current day from calendar in the same format than json
  calendar_dates = date.getFullYear() + ('0' + (date.getMonth() + 1)).slice(-2) + ('0' + date.getDate()).slice(-2);

  let optionByDate = [{
      "date": "20190126",
      "option": "A"
    },
    {
      "date": "20190128",
      "option": "B"
    }, {
      "date": "20190131",
      "option": "A"
    }, {
      "date": "20190202",
      "option": "B"
    }, {
      "date": "20190205",
      "option": "A"
    }, {
      "date": "20190207",
      "option": "B"
    }, {
      "date": "20190210",
      "option": "A"
    }, {
      "date": "20190212",
      "option": "B"
    }, {
      "date": "20190215",
      "option": "A"
    }, {
      "date": "20190217",
      "option": "B"
    }, {
      "date": "20190220",
      "option": "A"
    }, {
      "date": "20190222",
      "option": "B"
    }, {
      "date": "20190225",
      "option": "A"
    }, {
      "date": "20190227",
      "option": "B"
    }, {
      "date": "20190302",
      "option": "A"
    }, {
      "date": "20190304",
      "option": "B"
    }
  ];

  // Get data from optionByDate json
  function getDataByCalendar(date) {
    return optionByDate.filter(
      function(optionByDate) {
        return optionByDate.date == date
      }
    );
  }

  let search_index = getDataByCalendar(calendar_dates);

  if (search_index.length > 0) {
    if (search_index[0].option == "A") return {
      classes: 'highlighted-a',
      tooltip: 'A option'
    };
    if (search_index[0].option == "B") return {
      classes: 'highlighted-b',
      tooltip: 'B option'
    };

  } else {
    // Disabled day
    return {
      enabled: false,
      tooltip: 'No option'
    };
  }

};