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📜  ES6-日期

📅  最后修改于: 2020-10-25 10:39:46             🧑  作者: Mango

Date对象是JavaScript语言内置的数据类型。 Date对象使用新的Date（）创建，如以下语法所示。

创建Date对象后，可以使用多种方法对其进行操作。大多数方法仅允许您使用本地时间或UTC（通用或GMT）时间来获取和设置对象的年，月，日，时，分，秒和毫秒字段。

ECMAScript标准要求Date对象必须能够在1970年1月1日之前或之后的1亿天内以毫秒为单位表示任何日期和时间。范围是正负273,785年，因此JavaScript可以表示直到275755年的日期和时间。

您可以使用以下任何语法使用Date（）构造函数创建Date对象。

new Date( ) 
new Date(milliseconds) 
new Date(datestring) 
new Date(year,month,date[,hour,minute,second,millisecond ])

注–括号中的参数始终是可选的。

日期属性

这是Date对象的属性及其描述的列表。

Sr.No Property & Description
1 constructor

Specifies the function that creates an object’s prototype
2 prototype

The prototype property allows you to add properties and methods to an object

日期方法

以下是各种日期方法及其说明的列表。

Sr.No Method & Description
1 Date()

Returns today’s date and time
2 getDate()

Returns the day of the month for the specified date according to the local time
3 getDay()

Returns the day of the week for the specified date according to the local time
4 getFullYear()

Returns the year of the specified date according to the local time
5 getHours()

Returns the hour in the specified date according to the local time
6 getMilliseconds()

Returns the milliseconds in the specified date according to the local time
7 getMinutes()

Returns the minutes in the specified date according to the local time
8 getMonth()

Returns the month in the specified date according to the local time
9 getSeconds()

Returns the seconds in the specified date according to the local time
10 getTime()

Returns the numeric value of the specified date as the number of milliseconds since January 1, 1970, 00:00:00 UTC
11 getTimezoneOffset()

Returns the time-zone offset in minutes for the current locale
12 getUTCDate()

Returns the day (date) of the month in the specified date according to the universal time
13 getUTCDay()

Returns the day of the week in the specified date according to the universal time
14 getUTCFullYear()

Returns the year in the specified date according to the universal time
15 getutcHours()

Returns the hours in the specified date according to the universal time
16 getUTCMilliseconds()

Returns the milliseconds in the specified date according to the universal time
17 getUTCMinutes()

Returns the minutes in the specified date according to the universal time
18 getUTCMonth()

Returns the month in the specified date according to the universal time
19 getUTCSeconds()

Returns the seconds in the specified date according to the universal time
20 setDate()

Sets the day of the month for a specified date according to the local time
21 setFullYear()

Sets the full year for a specified date according to the local time
22 setHours()

Sets the hours for a specified date according to the local time
23 setMilliseconds()

Sets the milliseconds for a specified date according to the local time
24 setMinutes()

Sets the minutes for a specified date according to the local time
25 setMonth()

Sets the month for a specified date according to the local time
26 setSeconds()

Sets the seconds for a specified date according to the local time
27 setTime()

Sets the Date object to the time represented by a number of milliseconds since January 1, 1970, 00:00:00 UTC
28 setUTCDate()

Sets the Date object to the time represented by a number of milliseconds since January 1, 1970, 00:00:00 UTC
29 setUTCFullYear()

Sets the full year for a specified date according to the universal time
30 setUTCHours()

Sets the hour for a specified date according to the universal time
31 setUTCMilliseconds()

Sets the milliseconds for a specified date according to the universal time
32 setUTCMinutes()

Sets the minutes for a specified date according to the universal time
33 setUTCMonth()

Sets the month for a specified date according to the universal time
34 setUTCSeconds()

Sets the seconds for a specified date according to the universal time
35 todatestring()

Returns the “date” portion of the Date as a human-readable string
36 toLocaleDateString()

Returns the “date” portion of the Date as a string, using the current locale’s conventions
37 toLocaleString()

Converts a date to a string, using the current locale’s conventions
38 toLocaleTimeString()

Returns the “time” portion of the Date as a string, using the current locale’s conventions
39 toString()

Returns a string representing the specified Date object
40 toTimeString()

Returns the “time” portion of the Date as a human-readable string
41 toUTCString()

Converts a date to a string, using the universal time convention
42 valueOf()

Returns the primitive value of a Date object