let removeDuplicates = (str) => {
  let regEx = /[^a-zA-Z]/g;
  str = str.replace(regEx, "");
  let result = '';
  let obj = {
    uniques: '',
    duplicates: 0
  };
  let count = 0;

  for (let i = 0; i < str.length; i++) {
    if(result.indexOf(str[i]) == -1) {
      result += str[i];
    } else {
      count += 1;
    }
  };
let sortResult = (str) => str.split("").sort().join("");


 let sorted = sortResult(result);
  obj.uniques = sorted;
  obj.duplicates = count;

  return obj;
}