js获取当前-年月日时分秒

function getMyDate(str){          
  var oDate = new Date(parseInt(str)),             
  oYear = oDate.getFullYear(),              
  oMonth = oDate.getMonth()+1,              
  oDay = oDate.getDate(),              
  oHour = oDate.getHours(),              
  oMin = oDate.getMinutes(),             
  oSen = oDate.getSeconds(),             
  oTime = oYear +'-'+ getzf(oMonth) +'-'+ getzf(oDay) +" "+
           getzf(oHour)+":"+getzf(oMin)+":"+getzf(oSen);//最后拼接时间           
  return oTime;   
};        

//补0操作        
function getzf(num){          
  if(parseInt(num) < 10){              
      num = '0'+num;          
  }           
  return num;     
 }


//当前时间：
 let day = new Date(); 
 currentTime = getMyDate(day.getTime())

//10分钟前
let  day_5m = day.getTime()-10*60*1000
beforeTime = getMyDate(day_5m)