Date.prototype.getDay()

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Il metodo getDay()  restituisce il giorno della settimana per la data specificata in accordo con l'ora locale, dove 0 rappresenta Domenica. Per il giorno del mese, vedere Date.prototype.getDate().

Sintassi

dateObj.getDay()

Valore di ritorno

Un numero di tipo  integer,  tra 0 e 6, corrispondente al giorno della settimana per la data fornita, in accordo con l'ora locale: 0 for Domenica, 1 per Lunedi, 2 for Martedi e cosi' via.

Esempi

Utilizzando  getDay()

La seconda dichiarazione qui sotto assegna il valore 1 a weekday, basato sul valore dell'oggetto Date Xmas95. December 25, 1995, è un Lunedi.

var Xmas95 = new Date('December 25, 1995 23:15:30');
var weekday = Xmas95.getDay();

console.log(weekday); // 1

Note: Se necessitato il nome completo di un giorno ("Monday" per esempio ) può essere ottenuto utilizzando Intl.DateTimeFormat con un parametro options . Utilizzando questo metodo,  l'internazionalizzazione risulta più semplice:

var options = { weekday: 'long'};
console.log(new Intl.DateTimeFormat('en-US', options).format(Xmas95));
// Monday
console.log(new Intl.DateTimeFormat('de-DE', options).format(Xmas95));
// Montag

Specificazioni

Specification Status Comment
ECMAScript Latest Draft (ECMA-262)
The definition of 'Date.prototype.getDay' in that specification.		 Draft  
ECMAScript 2015 (6th Edition, ECMA-262)
The definition of 'Date.prototype.getDay' in that specification.		 Standard  
ECMAScript 5.1 (ECMA-262)
The definition of 'Date.prototype.getDay' in that specification.		 Standard  
ECMAScript 1st Edition (ECMA-262) Standard Definizione iniziale. Implementata in JavaScript 1.0.

Browser compatibility

Update compatibility data on GitHub
DesktopMobileServer
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung InternetNode.js
getDayChrome Full support 1Edge Full support 12Firefox Full support 1IE Full support 3Opera Full support YesSafari Full support 1WebView Android Full support 1Chrome Android Full support 18Firefox Android Full support 4Opera Android Full support YesSafari iOS Full support 1Samsung Internet Android Full support 1.0nodejs Full support Yes

Legend

Full support  
Full support

Vedere anche

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  2. Date
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