Array.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 May 2018.

El método entries() retorna un nuevo objeto Array Iterator que contiene los pares clave/valor para cada índice de la matriz.

Pruébalo

const array1 = ["a", "b", "c"];

const iterator1 = array1.entries();

console.log(iterator1.next().value);
// Expected output: Array [0, "a"]

console.log(iterator1.next().value);
// Expected output: Array [1, "b"]

Sintaxis

arr.entries()

Valor de retorno

Un nuevo objeto iterador Array.

Ejemplos

Usando un bucle for…of

js
var a = ["a", "b", "c"];
var iterator = a.entries();

for (let e of iterator) {
  console.log(e);
}
// [0, 'a']
// [1, 'b']
// [2, 'c']

Especificaciones

Specification
ECMAScript® 2025 Language Specification
# sec-array.prototype.entries

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
entries

Legend

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Full support
Full support

Ver también