Javascript 이전달 및 다음달 구하기 Ex) 5~6/6~7

 

 

 

javascript의 data() function을 사용하여 이전달, 다음달

이전년도, 다음년도 구하기 

 

 

 

1. 이전달 다음달

var selectDate = new Date();
 /**
 * 이전달 ~ 다음달
 * @param month : 기준 selectDate month() 값
 * @return
 */
function prevMonth(month){
 selectDate = new Date(selectDate.getFullYear(), (month-1), selectDate.getDate());
 
 var startDate = new Date();
 var endDate   = new Date();
 
 startDate.setFullYear(selectDate.getFullYear());
 endDate.setFullYear(selectDate.getFullYear());
 
 startDate.setMonth((selectDate.getMonth()+1));
 endDate.setMonth((selectDate.getMonth()+2));
  
 var dateJSON = {"startDate":startDate.getFullYear()+"."+(startDate.getMonth()+1),
     "endDate":endDate.getFullYear()+"."+(endDate.getMonth()+1)};
 return dateJSON;
}

 

2. 다음달 ~ 그 다음달 

/**
 * 다음달 ~ 그다음달
 * @param month : 기준 selectDate month() 값
 * @return
 */
function nextMonth(month){
 
 selectDate = new Date(selectDate.getFullYear(), (month+1), selectDate.getDate());
 var startDate = new Date();
 var endDate   = new Date();
 
 startDate.setFullYear(selectDate.getFullYear());
 endDate.setFullYear(selectDate.getFullYear());
 
 startDate.setMonth((selectDate.getMonth()+1));
 endDate.setMonth((selectDate.getMonth()+2));
 
 var dateJSON ={"dateItem":[{"startDate":startDate.getFullYear()+"."+(startDate.getMonth()+1)},
                            {"endDate":endDate.getFullYear()+"."+(endDate.getMonth()+1)}]};
 return dateJSON;
}

 

3. 이전년도 및 다음년도

/**
 * 이전년도 및 다음년도 구하기 
 * @param year  : 기준년도
 * @param type  : R , L
 * @return
 */
var yearControl = function(year,type){
 var resultYear = "";
 selectDate.setFullYear( year , 0, 1);

 if(type == "R"){
  selectDate.setFullYear( year + 1 , 0, 1); 
 }else if(type == "L"){
  selectDate.setFullYear( year - 1 , 0, 1);
 }
 
 return selectDate.getFullYear();

}