Map.prototype.clear()

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 clear() de las instancias Map remueve todos los elementos de este map.

Pruébalo

const map1 = new Map();

map1.set("bar", "baz");
map1.set(1, "foo");

console.log(map1.size);
// Expected output: 2

map1.clear();

console.log(map1.size);
// Expected output: 0

Sintaxis

js
clear()

Parámetros

Ningúno.

Valor devuelto

Ningúno (undefined).

Ejemplos

Usando clear()

js
const myMap = new Map();
myMap.set("bar", "baz");
myMap.set(1, "foo");

console.log(myMap.size); // 2
console.log(myMap.has("bar")); // true

myMap.clear();

console.log(myMap.size); // 0
console.log(myMap.has("bar")); // false

Especificaciones

Specification
ECMAScript® 2025 Language Specification
# sec-map.prototype.clear

Compatibilidad con navegadores

Report problems with this compatibility data on GitHub
desktopmobileserver
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
Deno
Node.js
clear

Legend

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Full support
Full support

Véase también