ES6 - Date

le Date objectest un type de données intégré au langage JavaScript. Les objets de date sont créés avec le nouveauDate () comme indiqué dans la syntaxe suivante.

Une fois qu'un objet Date est créé, un certain nombre de méthodes vous permettent de l'utiliser. La plupart des méthodes vous permettent simplement d'obtenir et de définir les champs année, mois, jour, heure, minute, seconde et milliseconde de l'objet, en utilisant l'heure locale ou l'heure UTC (universelle ou GMT).

La norme ECMAScript exige que l'objet Date puisse représenter n'importe quelle date et heure, avec une précision de la milliseconde, dans les 100 millions de jours avant ou après le 1/1/1970. Il s'agit d'une plage de plus ou moins 273 785 ans, donc JavaScript peut représenter la date et l'heure jusqu'à l'année 275755.

Vous pouvez utiliser l'une des syntaxes suivantes pour créer un objet Date à l'aide de Date () constructor.

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

Note - Les paramètres entre parenthèses sont toujours facultatifs.

Propriétés de la date

Voici une liste des propriétés de l'objet Date avec leur description.

Sr.Non Propriété et 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

Date Methods

Following is a list of different date methods along with the description.

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