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Object 생성자는 객체 래퍼(wrapper)를 생성합니다.

구문

// Object initialiser or literal
{ [ nameValuePair1[, nameValuePair2[, ...nameValuePairN] ] ] }

// Called as a constructor
new Object([value])

매개변수

nameValuePair1, nameValuePair2, ... nameValuePairN
콜론으로 나뉘어져 있는 키(문자열)와 값(어떤 값이나 가능)의 쌍.
value
어떤 값이나 가능.

설명

Object 생성자는 주어진 값으로부터 객체 래퍼를 생성합니다. 만약 주어진 값이 null이거나 undefined이면 빈 객체를 생성해 반환하고, 그렇지 않으면 값에 맞는 자료형의 객체를 반환합니다. 만약 값이 이미 객체이면 그 값을 다시 반환합니다.

생성자가 아닌 맥락에서 불리면, Object는  new Object()와 동일하게 동작합니다.

object initializer / literal syntax를 참고하세요.

Object 생성자의 속성

Object.length
1의 값을 가집니다.
Object.prototype
Object 형의 모든 객체에 속성을 추가할 수 있습니다.

Object 생성자의 메서드

Object.assign()
하나 이상의 원본 객체들로부터 모든 열거가능한 속성들을 대상 객체로 복사합니다.
Object.create()
주어진 프로토타입(prototype)의 객체와 속성들을 갖고 있는 새 객체를 생성합니다.
Object.defineProperty()
주어진 기술자(descriptor)에 의해 기술된(described) 이름붙은 속성을 객체에 추가합니다.
Object.defineProperties()
주어진 기술자들에 맞는 이름붙은 속성들을 객체에 추가합니다.
Object.freeze()
객체를 프리징(freeze)합니다. 즉, 다른 곳의 코드에서 객체의 속성을 지우거나 바꿀 수 없습니다.
Object.getOwnPropertyDescriptor()
객체의 이름붙은 속성의 기술자를 반환합니다.
Object.getOwnPropertyNames()
주어진 객체 자신만의 열거가능하거나 열거불가능한 속성들의 이름을 포함하는 배열(array)을 반환합니다.
Object.getOwnPropertySymbols()
주어진 객체에서 바로 찾을 수 있는 모든 심볼 속성을 배열로 반환합니다.
Object.getPrototypeOf()
명시된 객체의 프로토타입을 반환.
Object.is()
두 값이 같은지를 비교합니다. 모든 NaN 값은 같다고 처리됩니다.(다른 추상적 또는 엄격한 등호 비교에서는 다르게 처리됩니다)
Object.isExtensible()
객체의 확장이 가능한지 확인합니다.
Object.isFrozen()
객체가 프리징 되었는지 확인합니다.
Object.isSealed()
객체가 실링(seal) 되었는지 확인합니다.
Object.keys()
주어진 객체 자신의 열거가능한 속성들의 이름의 배열을 반환합니다.
Object.preventExtensions()
객체가 확장되는 것을 못하도록 합니다.
Object.seal()
다른 코드가 객체의 속성을 삭제하지 못하도록 합니다.
Object.setPrototypeOf()
프로토타입(즉, 내부의 [[Prototype]] 속성)을 설정합니다.
Object.values()
주어진 객체의 열거가능한 모든 스트링 속성들의 값들을 포함하고 있는 배열을 반환합니다.

Object 인스턴스와 Object 프로토타입 객체

JavaScript에서 모든 객체들은 Object의 자손입니다. 모든 객체는 Object.prototype으로부터 메서드와 속성을 상속하는데, 나중에 덮어 쓸 수도 있습니다. 예를 들어, 다른 생성자의 프로토타입은 그 constructor 속성을 덮어쓰고 자신의 toString() 메소드들을 제공합니다. Object 프로토타입 객체에 대한 변경 내용은  그 변경 내용에 영향을 받는 속성들과 메소드들이 프로토타입 체인(chain)을 따라 더이상 무시되지 않는한,  모든 객체들로 전달됩니다.

속성

Object.prototype.constructor
객체의 프로토타입을 생성하는 함수를 지정합니다.
Object.prototype.__proto__
객체가 초기화될 때 프로토타입으로 사용된 객체를 가리킵니다.
Object.prototype.__noSuchMethod__
정의되지 않은 객체 멤버가 메소드로서 호출될 때 실행되는 함수를 정의하는 데 쓰였지만 제거되었습니다.
Object.prototype.__count__
사용자 정의 객체 상에 직접 있는 열거가능 속성의 수를 반환하는 데 쓰였지만 제거되었습니다.
Object.prototype.__parent__
객체 문맥을 가리키는 데 쓰였지만 제거되었습니다.

메서드

Object.prototype.__defineGetter__()
함수를 속성에 연결합니다, 접근했을 때 그 함수를 실행해 그 결과값을 반환하는.
Object.prototype.__defineSetter__()
함수를 속성에 연결합니다, 설정했을 때 그 속성을 수정하는 함수를 실행하는.
Object.prototype.__lookupGetter__()
__defineGetter__() 메소드에 의해 지정된 속성과 관련된 함수를 반환합니다.
Object.prototype.__lookupSetter__()
__defineSetter__() 메소드에 의해 지정된 속성과 관련된 함수를 반환합니다.
Object.prototype.hasOwnProperty()
객체가 지정된 속성을 프로토타입 체인을 통해 상속되지 않은 그 객체의 직접 속성으로 포함하는지를 나타내는 boolean을 반환합니다.
Object.prototype.isPrototypeOf()
지정된 객체가 이 메소드가 호출된 객체의 프로토타입 체인 내에 있는지를 나타내는 boolean을 반환합니다.
Object.prototype.propertyIsEnumerable()
내부 ECMAScript [[Enumerable]] attribute가 설정된 경우를 나타내는 boolean을 반환합니다.
Object.prototype.toSource()
이 메소드가 호출된 객체를 나타내는 객체 리터럴의 출처를 포함하는 문자열을 반환합니다; 새로운 객체를 만들기 위해 이 값을 쓸 수 있습니다.
Object.prototype.toLocaleString()
toString()을 호출합니다.
Object.prototype.toString()
객체의 문자열 표현을 반환합니다.
Object.prototype.unwatch()
객체 속성에서 감시점을 제거합니다.
Object.prototype.valueOf()
지정된 객체의 원시값을 반환합니다.
Object.prototype.watch()
객체 속성에 감시점을 추가합니다.
Object.prototype.eval()
지정된 객체의 문맥에서 JavaScript 코드 문자열을 평가하는 데 쓰였지만 제거되었습니다.

예제

undefined 와 null 타입이 주어진 객체 사용

다음 예제는 변수 o에 비어있는 Object 저장합니다.

var o = new Object();
var o = new Object(undefined);
var o = new Object(null);

Boolean 객체를 생성하기 위한 객체 사용

다음 예제들은 변수 oBoolean 객체를 저장합니다.

// equivalent to o = new Boolean(true);
var o = new Object(true);
// equivalent to o = new Boolean(false);
var o = new Object(Boolean());

명세

Specification Status Comment
ECMAScript 1st Edition. Standard Initial definition. Implemented in JavaScript 1.0.
ECMAScript 5.1 (ECMA-262)
The definition of 'Object' in that specification.
Standard  
ECMAScript 2015 (6th Edition, ECMA-262)
The definition of 'Object' in that specification.
Standard Added Object.assign, Object.getOwnPropertySymbols, Object.setPrototypeOf, Object.is
ECMAScript Latest Draft (ECMA-262)
The definition of 'Object' in that specification.
Draft Added Object.entries, Object.values and Object.getOwnPropertyDescriptors.

브라우저 호환성

Update compatibility data on GitHub
DesktopMobileServer
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidEdge MobileFirefox for AndroidOpera for AndroidiOS SafariSamsung InternetNode.js
Basic supportChrome Full support YesEdge Full support YesFirefox Full support 1IE Full support YesOpera Full support YesSafari Full support YesWebView Android Full support YesChrome Android Full support YesEdge Mobile Full support YesFirefox Android Full support 4Opera Android Full support YesSafari iOS Full support YesSamsung Internet Android Full support Yesnodejs Full support Yes
prototypeChrome Full support YesEdge Full support YesFirefox Full support 1IE Full support YesOpera Full support YesSafari Full support YesWebView Android Full support YesChrome Android Full support YesEdge Mobile Full support YesFirefox Android Full support 4Opera Android Full support YesSafari iOS Full support YesSamsung Internet Android Full support Yesnodejs Full support Yes
__count__
DeprecatedNon-standard
Chrome No support NoEdge No support NoFirefox No support NoIE No support NoOpera No support NoSafari No support NoWebView Android No support NoChrome Android No support NoEdge Mobile No support NoFirefox Android No support NoOpera Android No support NoSafari iOS No support NoSamsung Internet Android No support Nonodejs No support No
__noSuchMethod__
DeprecatedNon-standard
Chrome No support NoEdge No support NoFirefox No support 1 — 43IE No support NoOpera No support NoSafari No support NoWebView Android No support NoChrome Android No support NoEdge Mobile No support NoFirefox Android No support 4 — 43Opera Android No support NoSafari iOS No support NoSamsung Internet Android No support Nonodejs No support No
__parent__
DeprecatedNon-standard
Chrome No support NoEdge No support NoFirefox No support NoIE No support NoOpera No support NoSafari No support NoWebView Android No support NoChrome Android No support NoEdge Mobile No support NoFirefox Android No support NoOpera Android No support NoSafari iOS No support NoSamsung Internet Android No support Nonodejs No support No
__proto__
Deprecated
Chrome Full support YesEdge Full support YesFirefox Full support 1IE Full support 11Opera Full support YesSafari Full support YesWebView Android Full support YesChrome Android Full support YesEdge Mobile Full support YesFirefox Android Full support 4Opera Android Full support YesSafari iOS Full support YesSamsung Internet Android Full support Yesnodejs Full support Yes
constructorChrome Full support YesEdge Full support YesFirefox Full support 1IE Full support YesOpera Full support YesSafari Full support YesWebView Android Full support YesChrome Android Full support YesEdge Mobile Full support YesFirefox Android Full support 4Opera Android Full support YesSafari iOS Full support YesSamsung Internet Android Full support Yesnodejs Full support Yes
assignChrome Full support 45Edge Full support YesFirefox Full support 34IE No support NoOpera Full support 32Safari Full support 9WebView Android No support NoChrome Android Full support 45Edge Mobile Full support YesFirefox Android Full support 34Opera Android No support NoSafari iOS Full support YesSamsung Internet Android Full support 5.0nodejs Full support 4.0.0
createChrome Full support 5Edge Full support YesFirefox Full support 4IE Full support 9Opera Full support 11.6Safari Full support 5WebView Android Full support YesChrome Android Full support YesEdge Mobile Full support YesFirefox Android Full support 4Opera Android Full support 11.5Safari iOS Full support YesSamsung Internet Android Full support Yesnodejs Full support Yes
definePropertiesChrome Full support 5Edge Full support YesFirefox Full support 4IE Full support 9Opera Full support 11.6Safari Full support 5WebView Android Full support YesChrome Android Full support YesEdge Mobile Full support YesFirefox Android Full support 4Opera Android Full support 11.5Safari iOS Full support YesSamsung Internet Android Full support Yesnodejs Full support Yes
definePropertyChrome Full support 5Edge Full support YesFirefox Full support 4IE Full support 9
Notes
Full support 9
Notes
Notes Also supported in Internet Explorer 8, but only on DOM objects and with some non-standard behaviors.
Opera Full support 11.6Safari Full support 5.1
Notes
Full support 5.1
Notes
Notes Also supported in Safari 5, but not on DOM objects.
WebView Android Full support YesChrome Android Full support YesEdge Mobile Full support YesFirefox Android Full support 4Opera Android Full support 11.5Safari iOS Full support YesSamsung Internet Android Full support Yesnodejs Full support Yes
entriesChrome Full support 54Edge Full support 14Firefox Full support 47IE No support NoOpera Full support 41Safari Full support 10.1WebView Android Full support 54Chrome Android Full support 54Edge Mobile Full support YesFirefox Android Full support 47Opera Android Full support 41Safari iOS Full support 10.1Samsung Internet Android Full support 6.0nodejs Full support 7.0.0
Full support 7.0.0
Full support 6.5.0
Disabled
Disabled From version 6.5.0: this feature is behind the --harmony runtime flag.
freezeChrome Full support 6Edge Full support YesFirefox Full support 4IE Full support 9Opera Full support 12Safari Full support 5.1WebView Android Full support YesChrome Android Full support YesEdge Mobile Full support YesFirefox Android Full support 4Opera Android Full support YesSafari iOS Full support YesSamsung Internet Android Full support Yesnodejs Full support Yes
fromEntriesChrome No support NoEdge No support NoFirefox Full support 63IE No support NoOpera No support NoSafari No support NoWebView Android No support NoChrome Android No support NoEdge Mobile No support NoFirefox Android Full support 63Opera Android No support NoSafari iOS No support NoSamsung Internet Android No support Nonodejs No support No
getNotifier
DeprecatedNon-standard
Chrome No support 36 — 52Edge No support NoFirefox No support NoIE No support NoOpera No support NoSafari No support NoWebView Android No support NoChrome Android No support NoEdge Mobile No support NoFirefox Android No support NoOpera Android No support NoSafari iOS No support NoSamsung Internet Android No support Nonodejs No support No
getOwnPropertyDescriptorChrome Full support 5Edge Full support YesFirefox Full support 4IE Full support 8Opera Full support 12Safari Full support 5WebView Android Full support YesChrome Android Full support YesEdge Mobile Full support YesFirefox Android Full support 4Opera Android Full support YesSafari iOS Full support YesSamsung Internet Android Full support Yesnodejs Full support Yes
getOwnPropertyDescriptorsChrome Full support 54Edge Full support 15Firefox Full support 50IE No support NoOpera Full support 41Safari Full support 10WebView Android ? Chrome Android Full support 54Edge Mobile Full support YesFirefox Android Full support 50Opera Android ? Safari iOS ? Samsung Internet Android Full support 6.0nodejs Full support 7.0.0
Full support 7.0.0
Full support 6.5.0
Disabled
Disabled From version 6.5.0: this feature is behind the --harmony runtime flag.
getOwnPropertyNamesChrome Full support 5Edge Full support YesFirefox Full support 4IE Full support 9Opera Full support 12Safari Full support 5WebView Android Full support YesChrome Android Full support YesEdge Mobile Full support YesFirefox Android Full support 4Opera Android Full support YesSafari iOS Full support YesSamsung Internet Android Full support Yesnodejs Full support Yes
getOwnPropertySymbolsChrome Full support 38Edge Full support YesFirefox Full support 36IE No support NoOpera Full support 25Safari Full support 9WebView Android Full support 38Chrome Android Full support 38Edge Mobile Full support YesFirefox Android Full support 36Opera Android Full support 25Safari iOS Full support 9Samsung Internet Android Full support Yesnodejs Full support 0.12
getPrototypeOfChrome Full support 5Edge Full support YesFirefox Full support 3.5IE Full support 9Opera Full support 12.1Safari Full support 5WebView Android Full support YesChrome Android Full support YesEdge Mobile Full support YesFirefox Android Full support 4Opera Android Full support YesSafari iOS Full support YesSamsung Internet Android Full support Yesnodejs Full support Yes
isChrome Full support 30Edge Full support YesFirefox Full support 22IE No support NoOpera Full support YesSafari Full support 9WebView Android Full support YesChrome Android Full support YesEdge Mobile Full support YesFirefox Android Full support 22Opera Android Full support YesSafari iOS Full support 9Samsung Internet Android Full support Yesnodejs Full support 0.10
isExtensibleChrome Full support 6Edge Full support YesFirefox Full support 4IE Full support 9Opera Full support 12Safari Full support 5.1WebView Android Full support YesChrome Android Full support YesEdge Mobile Full support YesFirefox Android Full support 4Opera Android Full support YesSafari iOS Full support YesSamsung Internet Android Full support Yesnodejs Full support Yes
isFrozenChrome Full support 6Edge Full support YesFirefox Full support 4IE Full support 9Opera Full support 12Safari Full support 5.1WebView Android Full support YesChrome Android Full support YesEdge Mobile Full support YesFirefox Android Full support 4Opera Android Full support YesSafari iOS Full support YesSamsung Internet Android Full support Yesnodejs Full support Yes
isSealedChrome Full support 6Edge Full support YesFirefox Full support 4IE Full support 9Opera Full support 12Safari Full support 5.1WebView Android Full support YesChrome Android Full support YesEdge Mobile Full support YesFirefox Android Full support 4Opera Android Full support YesSafari iOS Full support YesSamsung Internet Android Full support Yesnodejs Full support Yes
keysChrome Full support 5Edge Full support YesFirefox Full support 4IE Full support 9Opera Full support 12Safari Full support 5WebView Android Full support YesChrome Android Full support YesEdge Mobile Full support YesFirefox Android Full support 4Opera Android Full support YesSafari iOS Full support YesSamsung Internet Android Full support Yesnodejs Full support Yes
observe
DeprecatedNon-standard
Chrome No support 36 — 52Edge No support NoFirefox No support NoIE No support NoOpera No support NoSafari No support NoWebView Android No support NoChrome Android No support NoEdge Mobile No support NoFirefox Android No support NoOpera Android No support NoSafari iOS No support NoSamsung Internet Android No support Nonodejs No support No
preventExtensionsChrome Full support 6Edge Full support YesFirefox Full support 4IE Full support 9Opera Full support 12Safari Full support 5.1WebView Android Full support YesChrome Android Full support YesEdge Mobile Full support YesFirefox Android Full support 4Opera Android Full support YesSafari iOS Full support YesSamsung Internet Android Full support Yesnodejs Full support Yes
__defineGetter__
Deprecated
Chrome Full support YesEdge Full support YesFirefox Full support 1
Notes
Full support 1
Notes
Notes Starting with Firefox 48, this method can no longer be called at the global scope without any object. A TypeError will be thrown otherwise. Previously, the global object was used in these cases automatically, but this is no longer the case.
IE Full support 11Opera Full support YesSafari Full support YesWebView Android Full support YesChrome Android Full support YesEdge Mobile Full support YesFirefox Android Full support 4Opera Android Full support YesSafari iOS Full support YesSamsung Internet Android Full support Yesnodejs Full support Yes
__defineSetter__
Deprecated
Chrome Full support YesEdge Full support YesFirefox Full support 1
Notes
Full support 1
Notes
Notes Starting with Firefox 48, this method can no longer be called at the global scope without any object. A TypeError will be thrown otherwise. Previously, the global object was used in these cases automatically, but this is no longer the case.
IE Full support 11Opera Full support YesSafari Full support YesWebView Android Full support YesChrome Android Full support YesEdge Mobile Full support YesFirefox Android Full support 4Opera Android Full support YesSafari iOS Full support YesSamsung Internet Android Full support Yesnodejs Full support Yes
__lookupGetter__
Deprecated
Chrome Full support YesEdge Full support YesFirefox Full support 1IE Full support 11Opera Full support YesSafari Full support YesWebView Android Full support YesChrome Android Full support YesEdge Mobile Full support YesFirefox Android Full support 4Opera Android Full support YesSafari iOS Full support YesSamsung Internet Android Full support Yesnodejs Full support Yes
__lookupSetter__
Deprecated
Chrome Full support YesEdge Full support YesFirefox Full support 1IE Full support 11Opera Full support YesSafari Full support YesWebView Android Full support YesChrome Android Full support YesEdge Mobile Full support YesFirefox Android Full support 4Opera Android Full support YesSafari iOS Full support YesSamsung Internet Android Full support Yesnodejs Full support Yes
eval
DeprecatedNon-standard
Chrome No support NoEdge No support NoFirefox No support NoIE No support NoOpera No support NoSafari No support NoWebView Android No support NoChrome Android No support NoEdge Mobile No support NoFirefox Android No support NoOpera Android No support NoSafari iOS No support NoSamsung Internet Android No support Nonodejs No support No
hasOwnPropertyChrome Full support YesEdge Full support YesFirefox Full support 1IE Full support YesOpera Full support YesSafari Full support YesWebView Android Full support YesChrome Android Full support YesEdge Mobile Full support YesFirefox Android Full support 4Opera Android Full support YesSafari iOS Full support YesSamsung Internet Android Full support Yesnodejs Full support Yes
isPrototypeOfChrome Full support YesEdge Full support YesFirefox Full support YesIE Full support YesOpera Full support YesSafari Full support YesWebView Android Full support YesChrome Android Full support YesEdge Mobile Full support YesFirefox Android Full support YesOpera Android Full support YesSafari iOS Full support YesSamsung Internet Android Full support Yesnodejs Full support Yes
propertyIsEnumerableChrome Full support YesEdge Full support YesFirefox Full support YesIE Full support YesOpera Full support YesSafari Full support YesWebView Android Full support YesChrome Android Full support YesEdge Mobile Full support YesFirefox Android Full support YesOpera Android Full support YesSafari iOS Full support YesSamsung Internet Android Full support Yesnodejs Full support Yes
toLocaleStringChrome Full support YesEdge Full support YesFirefox Full support 1IE Full support YesOpera Full support YesSafari Full support YesWebView Android Full support YesChrome Android Full support YesEdge Mobile Full support YesFirefox Android Full support 4Opera Android Full support YesSafari iOS Full support YesSamsung Internet Android Full support Yesnodejs Full support Yes
toSource
DeprecatedNon-standard
Chrome No support NoEdge No support NoFirefox Full support 1IE No support NoOpera No support NoSafari No support NoWebView Android No support NoChrome Android No support NoEdge Mobile No support NoFirefox Android Full support 4Opera Android No support NoSafari iOS No support NoSamsung Internet Android No support Nonodejs No support No
toStringChrome Full support YesEdge Full support YesFirefox Full support 1IE Full support YesOpera Full support YesSafari Full support YesWebView Android Full support YesChrome Android Full support YesEdge Mobile Full support YesFirefox Android Full support 4Opera Android Full support YesSafari iOS Full support YesSamsung Internet Android Full support Yesnodejs Full support Yes
unwatch
DeprecatedNon-standard
Chrome No support NoEdge No support NoFirefox No support 1 — 58IE No support NoOpera No support NoSafari No support NoWebView Android No support NoChrome Android No support NoEdge Mobile No support NoFirefox Android No support 4 — 58Opera Android No support NoSafari iOS No support NoSamsung Internet Android No support Nonodejs No support No
valueOfChrome Full support YesEdge Full support YesFirefox Full support 1IE Full support YesOpera Full support YesSafari Full support YesWebView Android Full support YesChrome Android Full support YesEdge Mobile Full support YesFirefox Android Full support 4Opera Android Full support YesSafari iOS Full support YesSamsung Internet Android Full support Yesnodejs Full support Yes
watch
DeprecatedNon-standard
Chrome No support NoEdge No support NoFirefox No support 1 — 58IE No support NoOpera No support NoSafari No support NoWebView Android No support NoChrome Android No support NoEdge Mobile No support NoFirefox Android No support 4 — 58Opera Android No support NoSafari iOS No support NoSamsung Internet Android No support Nonodejs No support No
sealChrome Full support 6Edge Full support YesFirefox Full support 4IE Full support 9Opera Full support 12Safari Full support 5.1WebView Android Full support YesChrome Android Full support YesEdge Mobile Full support YesFirefox Android Full support 4Opera Android Full support YesSafari iOS Full support YesSamsung Internet Android Full support Yesnodejs Full support Yes
setPrototypeOfChrome Full support 34Edge Full support YesFirefox Full support 31IE Full support 11Opera Full support YesSafari Full support 9WebView Android Full support YesChrome Android Full support YesEdge Mobile Full support YesFirefox Android Full support 31Opera Android Full support YesSafari iOS Full support YesSamsung Internet Android Full support Yesnodejs Full support 0.12
unobserve
DeprecatedNon-standard
Chrome No support 36 — 52Edge No support NoFirefox No support NoIE No support NoOpera No support NoSafari No support NoWebView Android No support NoChrome Android No support NoEdge Mobile No support NoFirefox Android No support NoOpera Android No support NoSafari iOS No support NoSamsung Internet Android No support Nonodejs No support No
valuesChrome Full support 54Edge Full support 14Firefox Full support 47IE No support NoOpera Full support 41Safari Full support 10.1WebView Android Full support 54Chrome Android Full support 54Edge Mobile Full support YesFirefox Android Full support 47Opera Android Full support 41Safari iOS Full support 10.3Samsung Internet Android Full support 6.0nodejs Full support 7.0.0
Full support 7.0.0
Full support 6.5.0
Disabled
Disabled From version 6.5.0: this feature is behind the --harmony runtime flag.

Legend

Full support  
Full support
No support  
No support
Compatibility unknown  
Compatibility unknown
Non-standard. Expect poor cross-browser support.
Non-standard. Expect poor cross-browser support.
Deprecated. Not for use in new websites.
Deprecated. Not for use in new websites.
See implementation notes.
See implementation notes.
User must explicitly enable this feature.
User must explicitly enable this feature.

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