momentjs

(function()
{ //var moment = require('moment');
    //moment.locale('pl');
  // console.log(moment.locale());
   var eDepartureMoment = document.getElementById("departureMoment");
   var eArrivalMoment = document.getElementById("arrivalMoment");

  function departureDataClick(){
    $("#departure").trigger("focus");
  }
    function arrivalDataClick(){
    $("#arrival").trigger("focus");
  }
  function dataChange(idInput,dataMoment,dayMoment){
      var departureInput= document.getElementById(idInput).value;
      var eDataMoment = document.getElementById(dataMoment);
      var eDayMoment = document.getElementById(dayMoment);
      // instantiate a moment object
    var departureMomentDay = moment(departureInput).format('DD');
    var departureMoment = moment(departureInput).format('MMMM YYYY');
    // var departureMoment = departureInput;



      eDayMoment.innerHTML = departureMomentDay;

      eDataMoment.innerHTML=departureMoment;
  }
//departure
  dataChange('departure','departureDataMoment','departureDayMoment');

   eDepartureMoment.addEventListener("click", departureDataClick);
      $( "#departure" ).change(function() {

      dataChange('departure','departureDataMoment','departureDayMoment');
   });
//ARIVAL
  dataChange('arrival','arrivalDataMoment','arrivalDayMoment');
   eArrivalMoment.addEventListener("click", arrivalDataClick);
      $( "#arrival" ).change(function() {

      dataChange('arrival','arrivalDataMoment','arrivalDayMoment');
   });

})();