[Jquery] 데이터 포맷(날짜에 하이픈 넣기)

function dateFormat(num){
 
     if(!num) return "";
     var formatNum = '';
 
     // 공백제거
     num=num.replace(/\s/gi, "");
 
     try{
          if(num.length == 8) {
               formatNum = num.replace(/(\d{4})(\d{2})(\d{2})/, '$1-$2-$3');
          }
     } catch(e) {
          formatNum = num;
          console.log(e);
     }
     return formatNum;
}

 

function fn_update(seq) {
 
    $.ajax({
        url : "/admin/getPopDetail.do",
        type : "post",
        data : { seq : seq },
        dataType : "json",
        success : function(data) {
            console.log("수정 데이타", data);
             var result = data.resultVo;
 
            $("#startDate").val(result.startDate.replace(/(\d{4})(\d{2})(\d{2})/, "$1-$2-$3"));            
            $("#endDate").val(result.endDate.replace(/(\d{4})(\d{2})(\d{2})/, "$1-$2-$3"));            
        }
    });
}