BJ_web_developers / dyitoc

export function formatNum(str) {
  var newStr = "";
  var count = 0;
  for (var i = str.length - 1; i >= 0; i--) {
    if (count % 3 == 0 && count != 0) {

      newStr = str.charAt(i) + "," + newStr;
    } else {
      newStr = str.charAt(i) + newStr;
    }
    count++;
  }
  str = newStr;
  return str;

}

export function formatNumArr(str) {
  var newStr = "";
  var count = 0;
  for (var i = str.length - 1; i >= 0; i--) {
    if (count % 3 == 0 && count != 0) {

      newStr = str.charAt(i) + "," + newStr;
    } else {
      newStr = str.charAt(i) + newStr;
    }
    count++;
  }
  str = newStr;
  str = str.split('')
  return str;

}