adds the day of week to each html selector, using european date format DD-MM-YYYY

addDayName.js

function addDayName (_dateString) {
                   let dateString = _dateString.toString();
                   let dagen = ["Zondag","Maandag","Dinsdag","Woensdag","Donderdag","Vrijdag","Zaterdag"];
                   let arrayOfDate = dateString.split("-"); // symbol in date 
                   let swappedDate=  arrayOfDate[1] + "/" + arrayOfDate[0] + "/" + arrayOfDate[2];
                   let date = new Date(Date.parse(swappedDate));
                   return dagen[date.getDay()]+" "+dateString;     
             }
function changeAllOnSelector(selector){
             $(document).ready(function() {
             $(selector).each(function(){
                               $(this).text(voegDagToe($(this).text()));
                            });
             })
}
changeAllOnSelector('td.date');