使用jquery如何获取现在时间、并且格式化

var now=new Date();  
$("#total").html(formatTime (now));

function formatTime (date) {
          var year = date.getFullYear()
          var month = date.getMonth() + 1
          var day = date.getDate()
          var hour = date.getHours()
          var minute = date.getMinutes()
          var second = date.getSeconds() 
          return [year, month, day].map(formatNumber).join(‘/‘) + ‘ ‘ + [hour, minute, second].map(formatNumber).join(‘:‘)
    }
    function formatNumber  ( n ) {
          n = n.toString();
          return n[1] ? n : ‘0‘ + n;
    }