AJAX返回object日期處理

//ajax 日期轉換
function changeDateFormat(d) {


//日期爲空直接返回
 if(!d){
  return ""
 }
 //將時間戳轉爲int類型，構造Date類型
 var date = new Date(parseInt(d.time, 10));
 //月份得+1，且只有個位數時在前面+0
 var month = date.getMonth() + 1 < 10 ? "0" + (date.getMonth() + 1): date.getMonth() + 1;
 //日期爲個位數時在前面+0
 var currentDate = date.getDate() < 10 ? "0" + date.getDate() : date.getDate();
 var hour = date.getHours()< 10 ? "0" + date.getHours() :   date.getHours();
 var min = date.getMinutes()< 10 ? "0" + date.getMinutes() : date.getMinutes();
        var sec = date.getSeconds()< 10 ? "0" + date.getSeconds() : date.getSeconds();
        //getFullYear得到4位數的年份 ，返回一串字符串 如2017-04-06 11:22:33
    return date.getFullYear() + "-" + month + "-" + currentDate + " " +hour + ":" +min+":" +sec;

    }