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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.

The entries() method of Map instances returns a new map iterator object that contains the [key, value] pairs for each element in this map in insertion order.

Try it

const map = new Map();

map.set("0", "foo");
map.set(1, "bar");

const iterator = map.entries();

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

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

Syntax

entries()

Parameters

None.

Return value

A new iterable iterator object.

Examples

Using entries()

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"]

Specifications

Specification
ECMAScript® 2026 Language Specification> # sec-map.prototype.entries>

Browser compatibility

	Desktop					Mobile							Server
	Chrome	Edge	Firefox	Opera	Safari	Chrome Android	Firefox for Android	Opera Android	Safari on IOS	Samsung Internet	WebView Android	WebView on iOS	Bun	Deno	Node.js
`entries`	38	12	20	25	8	38	20	25	8	3.0	38	8	1.0.0	1.0	0.12.0