시간 변환 함수

function formatDate(date) {
  var d = new Date(date),
      month = '' + (d.getMonth() + 1),
      day = '' + d.getDate(),
      year = d.getFullYear();

  if (month.length < 2) 
    month = '0' + month;
  if (day.length < 2) 
    day = '0' + day;

  return [year, month, day].join('-');
}

금액 변환 함수

function numberWithCommas(x) {
  return x.toString().replace(/\B(?=(\d{3})+(?!\d))/g, ",");
}