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js时间函数大全 详细的讲解 -----阿浩博客
2022-07-06 09:29:00 【冯浩(grow up)】
日期、时间对象
日期、时间对象是用来保存日期时间的,以特定的时间段保存时间,从1970年向前或者向后推285616年,UTC是格林尼治时间,又称世界统一时间。
实例化日期对象:var date = new Date ( );
一年的时间戳:var yearTimeStamp = 3652460601000;
设置日期时间 var date = new Date ( 2018,1,1 )
var date = new Date(“1/1/2018 11:30:30”);
1、组件方法
1、获取满年 getFullYear ( );
2、设置满年 setFullYear ( );
3、获取月份 getMonth ( ); 取值范围:0-11
4、设置月份 setMonth ( );
5、获取日期 getDate ( ); 取值范围:1-31
6、设置日期 setDate ( );
7、获取星期 getDay ( ); 取值范围:0-6
8、获取小时 getHours ( ); 取值范围:0-23
9、设置小时 setHours ( );
10、获取分钟 getMinutes ( ); 取值范围:0-59
11、设置分钟 setMinutes ( );
12、获取秒 getSeconds ( ); 取值范围:0-59
13、设置秒 setSeconds ( );
14、获取毫秒 getMillionSeconds ( ); 取值范围:0-999
15、设置毫秒 setMillionSeconds ( );
组件方法都有一个对应的UTC。
函数:获取指定年月的第一天是星期几
function getweek(year,month){
return new Date(year,month-1).getDay;
}console.log(getweek(2017,10));
2、时间定时器
1、设置时间定时器 setInterval ( function ( ){ },时间间隔(以毫秒计) );
2、清除时间定时器 clearInterval ( 定时器名称 );
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