Function to return selected checkbox choices as a delimited string, please in input form header script and use in live formula on form using example: getCheckedChoicesAsString("TextField26", "-");

function getCheckedChoicesAsString(tableID, delimiter) 
{ 
  let tbl = $('table[databasevalue="' + tableID + '"]'); 
  let selectedOpts = $(tbl).find('input[type="checkbox"]:checked'); 
  let str = ""; 
  for (let opt of selectedOpts) 
  { 
    str += $(opt).val() +  delimiter; 
  } 
  let trimmed = str.replace(new RegExp("[ " + delimiter + "]*$"), ''); 
  return trimmed; 
}