WeakMap.prototype.set()
Baseline Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.
El método set()
añade un nuevo elemento con su key
y value
específicos al objeto WeakMap
.
Pruébalo
const weakmap1 = new WeakMap();
const object1 = {};
const object2 = {};
weakmap1.set(object1, "foo");
weakmap1.set(object2, "bar");
console.log(weakmap1.get(object1));
// Expected output: "foo"
console.log(weakmap1.get(object2));
// Expected output: "bar"
Sintaxis
wm.set(key, value);
Parámetros
- indentificador (key)
-
Requerido. El identificador (objeto) del elemento a añadir al objeto
WeakMap
. - valor (value)
-
Requerido. El valor del elemento a añadir al objeto
WeakMap
.
Valor devuelto
El objeto WeakMap
.
Ejemplos
Utilización del método set
js
var wm = new WeakMap();
var obj = {};
// Agregando nuevos elementos a WeakMap
wm.set(obj, "foo").set(window, "bar"); // encadenamiento
// Actualiza el un elemento en el objeto WeakMap
wm.set(obj, "baz");
Especificaciones
Specification |
---|
ECMAScript® 2025 Language Specification # sec-weakmap.prototype.set |
Compatibilidad con navegadores
Report problems with this compatibility data on GitHubdesktop | mobile | server | ||||||||||||
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set |
Legend
Tip: you can click/tap on a cell for more information.
- Full support
- Full support
- See implementation notes.
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