gistfile1.js

// 현재 날짜 가져오기
function getCurrentDate(){
  var week = new Array('일', '월', '화', '수', '목', '금', '토');
  var today = new Date();
  var year = today.getFullYear();
  var month = today.getMonth() + 1;
  var day = today.getDate();
  var dayName = week[today.getDay()];
  
  console.log("현재 날짜는 %d-%d-%d %s요일 입니다.", year, month, day, dayName);
}

// 어제 날짜 가져오기
function getYesterDay(){
  var today = new Date();
  var yesterday = new Date(today.valueOf() - (24*60*60*1000));
  var year = yesterday.getFullYear();
  var month = yesterday.getMonth() + 1;
  var day = yesterday.getDate();
}

// 내일 날짜 가져오기
function getTomorrow(){
  var today = new Date();
  var tomorrow = new Date(today.valueOf() + (24*60*60*1000));
  var year = tomorrow.getFullYear();
  var month = tomorrow.getMonth() + 1;
  var day = tomorrow.getDate();
}