jsフォーマット日付-年月日、時分秒

//           
var date = new Date();
console.log(date.getFullYear()); //           2019
console.log(date.getMonth() + 1); //          1         +1  
console.log(date.getDate()); //        
console.log(date.getDay()); // 3         1        6           0
//       2019  5  1     
var year = date.getFullYear();
var month = date.getMonth() + 1;
var dates = date.getDate();
var arr = ['   ', '   ', '   ', '   ', '   ', '   ', '   '];
var day = date.getDay();
console.log('   ：' + year + ' ' + month + ' ' + dates + '  ' + arr[day]);

  //          
var date = new Date();
console.log(date.getHours()); //  
console.log(date.getMinutes()); //  
console.log(date.getSeconds()); //  
//                     08:08:08
function getTimer() {
var time = new Date();
var h = time.getHours();
h = h < 10 ? '0' + h : h;
var m = time.getMinutes();
m = m < 10 ? '0' + m : m;
var s = time.getSeconds();
s = s < 10 ? '0' + s : s;
return h + ':' + m + ':' + s;
}
console.log(getTimer());