files/en-us/web/javascript/reference/global_objects/map/entries/index.md

metadata

title: Map.prototype.entries()
short-title: entries()
slug: Web/JavaScript/Reference/Global_Objects/Map/entries
page-type: javascript-instance-method
browser-compat: javascript.builtins.Map.entries
sidebar: jsref

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

{{InteractiveExample("JavaScript Demo: Map.prototype.entries()")}}

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

{{Specifications}}

Browser compatibility

{{Compat}}

See also

• {{jsxref("Map.prototype.keys()")}}
• {{jsxref("Map.prototype.values()")}}