js获取此刻时间或者把日期格式时间转换成字符串格式的时间

getTime(val){
    if (val&val instanceof Date){
      d = val;
    }else{
      d = new Date();
    };
    var year = d.getFullYear();
    var mouth = (d.getMonth() + 1) < 10 ? ('0' + (d.getMonth() + 1)) : (d.getMonth() + 1);
    var day = d.getDate() < 10 ? ('0' + d.getDate()) : d.getDate();
    var hour = d.getHours() < 10 ? '0' + d.getHours() : d.getHours();
    var minutes = d.getMinutes() < 10 ? '0' + d.getMinutes() : d.getMinutes();
    var second = d.getSeconds() < 10 ? '0' + d.getSeconds() : d.getSeconds();
    var curTime = year + '-' + mouth + '-' + day + ' ' + hour + ':' + minutes + ':' + second;
    return curTime
  };