javascript生成时间和日期代码

var date = new Date();
var year = date.getFullYear();
//返回月份小1，需要加1
var month = date.getMonth()+1;
var date = date.getDate()+5;
var dates = year + '-' + month + '-' + date;
console.log(dates)

var date = new Date();
var hour = date.getHours();
var min = date.getMinutes();
var sec = date.getSeconds();
var times = hour +":"+min+":"+sec;
console.log(times)
//返回Date的总毫秒数
//方法一通过valueOf getTime()
var date = new Date();
console.log(date.valueOf());
console.log(date.getTime());
//方法二简单的写法（最常用的写法）
var date1 = +new Date();
console.log(date1);
//方法3 h5新增的获取总毫秒数
console.log(Date.now());