WeakMap.prototype.delete()

delete() 메소드는 WeakMap 객체의 특정 요소를 제거합니다.

구문

wm.delete(key);

매개변수

key
WeakMap 객체에서 제거할 요소의 키.

반환 값

WeakMap 객체의 요소가 성공적으로 제거되면 true, 키를 찾을 수 없거나 키가 객체가 아닌 경우 false.

예제

delete 메서드 사용하기

var wm = new WeakMap();
wm.set(window, 'foo');

wm.delete(window); // Returns true. Successfully removed.

wm.has(window);    // Returns false. The window object is no longer in the WeakMap.

명세

Specification Status Comment
ECMAScript 2015 (6th Edition, ECMA-262)
The definition of 'WeakMap.prototype.delete' in that specification.		 Standard Initial definition.
ECMAScript Latest Draft (ECMA-262)
The definition of 'WeakMap.prototype.delete' in that specification.		 Draft  

브라우저 호환성

Update compatibility data on GitHub
DesktopMobileServer
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung InternetNode.js
deleteChrome Full support 36Edge Full support 12Firefox Full support 6
Notes
Full support 6
Notes
Notes Prior to Firefox 38, this method threw a TypeError when the key parameter was not an object. This has been fixed in version 38 and later to return false as per the ES2015 standard.
IE Full support 11Opera Full support 23Safari Full support 8WebView Android Full support 37Chrome Android Full support 36Firefox Android Full support 6
Notes
Full support 6
Notes
Notes Prior to Firefox 38, this method threw a TypeError when the key parameter was not an object. This has been fixed in version 38 and later to return false as per the ES2015 standard.
Opera Android Full support 24Safari iOS Full support 8Samsung Internet Android Full support Yesnodejs Full support 0.12
Full support 0.12
Full support 0.10
Disabled
Disabled From version 0.10: this feature is behind the --harmony runtime flag.

Legend

Full support  
Full support
See implementation notes.
See implementation notes.
User must explicitly enable this feature.
User must explicitly enable this feature.

같이 보기

Last modified:

, by MDN contributors
관련 주제
  1. Standard built-in objects
  2. WeakMap
  3. Properties
    1. WeakMap.prototype
  4. Methods
    1. WeakMap.prototype.clear() [Translate]
    2. WeakMap.prototype.delete()
    3. WeakMap.prototype.get() [Translate]
    4. WeakMap.prototype.has() [Translate]
    5. WeakMap.prototype.set() [Translate]
  5. Inheritance:
  6. Function
  7. Properties
    1. Function.arguments
    2. Function.arity [Translate]
    3. Function.caller [Translate]
    4. Function.displayName [Translate]
    5. Function.length
    6. Function.name
    7. Function.prototype
  8. Methods
    1. Function.prototype.apply()
    2. Function.prototype.bind()
    3. Function.prototype.call()
    4. Function.prototype.isGenerator() [Translate]
    5. Function.prototype.toSource()
    6. Function.prototype.toString() [Translate]
  9. Object
  10. Properties
    1. Object.prototype.__count__ [Translate]
    2. Object.prototype.__noSuchMethod__ [Translate]
    3. Object.prototype.__parent__ [Translate]
    4. Object.prototype.__proto__ [Translate]
    5. Object.prototype.constructor
  11. Methods
    1. Object.prototype.__defineGetter__()
    2. Object.prototype.__defineSetter__() [Translate]
    3. Object.prototype.__lookupGetter__() [Translate]
    4. Object.prototype.__lookupSetter__() [Translate]
    5. Object.prototype.hasOwnProperty()
    6. Object.prototype.isPrototypeOf()
    7. Object.prototype.propertyIsEnumerable()
    8. Object.prototype.toLocaleString()
    9. Object.prototype.toSource() [Translate]
    10. Object.prototype.toString()
    11. Object.prototype.unwatch() [Translate]
    12. Object.prototype.valueOf()
    13. Object.prototype.watch() [Translate]
    14. Object.setPrototypeOf()