Map.prototype.entries()
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 entries()
de las instancias Map
regresa un nuevo objeto iterador de mapa que contiene las tuplas [llave, valor]
para cada elemento en este map en orden de inserción.
Pruébalo
const map1 = new Map();
map1.set("0", "foo");
map1.set(1, "bar");
const iterator1 = map1.entries();
console.log(iterator1.next().value);
// Expected output: Array ["0", "foo"]
console.log(iterator1.next().value);
// Expected output: Array [1, "bar"]
Sintaxis
js
entries()
Parámetros
Ningúno.
Valor devuelto
Un nuevo objeto de tipo iterator iterable.
Ejemplos
Usando entries()
js
const myMap = new Map();
myMap.set("0", "foo");
myMap.set(1, "bar");
myMap.set({}, "baz");
const mapIter = myMap.entries();
console.log(mapIter.next().value); // ["0", "foo"]
console.log(mapIter.next().value); // [1, "bar"]
console.log(mapIter.next().value); // [Object, "baz"]
Especificaciones
Specification |
---|
ECMAScript® 2025 Language Specification # sec-map.prototype.entries |
Compatibilidad con navegadores
Report problems with this compatibility data on GitHubdesktop | mobile | server | ||||||||||||
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entries |
Legend
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- Full support
- Full support
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