Please note, this is a STATIC archive of website developer.mozilla.org from November 2016, cach3.com does not collect or store any user information, there is no "phishing" involved.

WeakMap.prototype.delete()

Traducción en curso

The delete() method removes the specified element from a WeakMap object.

Syntaxis

wm.delete(key);

Parametros

key
Required. The key of the element to remove from the WeakMap object.

Valor de retorno

true if an element in the WeakMap object has been removed successfully. false if the key is not found in the WeakMap or if the key is not an object.

Ejemplos

Using the delete method

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.

Especificaciones

Specification Status Comment
ECMAScript 2015 (6th Edition, ECMA-262)
The definition of 'WeakMap.prototype.delete' in that specification.
Standard Initial definition.
ECMAScript 2017 Draft (ECMA-262)
The definition of 'WeakMap.prototype.delete' in that specification.
Draft  

Compatibilidad de navegadores

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari
Basic support 36 6.0 (6.0) 11 23 7.1
Feature Android Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
Basic support No support 6.0 (6.0) No support No support 8

Notas especificas de Firefox

  • Prior to SpiderMonkey 38 (Firefox 38 / Thunderbird 38 / SeaMonkey 2.35), 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 latest ES6 standard (bug 1127827).

Ver también

Etiquetas y colaboradores del documento

 Colaboradores en esta página: frank-orellana
 Última actualización por: frank-orellana,