GlideAggregate function with passed-in parameters

var queryParam='email';

checkDuplUsers(true, queryParam);

function checkDuplUsers(activeUser, queryParam){

  var ga= new GlideAggregate('sys_user');

  ga.addAggregate('COUNT', queryParam);

  if (activeUser){

    ga.addActiveQuery();

  }

  ga.addHaving('COUNT', '>', 1);

  ga.query();

  gs.log("The following " + ga.getRowCount() + " users are duplicate on " + queryParam);

  while (ga.next()) {

      gs.log("GatherDuplicates " + queryParam + " " + ga.getAggregate('COUNT', queryParam) + " => " + ga.getElement(queryParam));

      

 }

}