Map.prototype.entries()

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

js
entries()

Parameters

None.

Return value

A new iterable iterator object.

Examples

undefined

Using 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"]

Specifications

See also