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Map.prototype.entries()

The entries() method returns a new iterator object that contains the [key, value] pairs for each element in the Map object in insertion order. In this particular case, this iterator object is also an iterable, so the for-of loop can be used. When the protocol [Symbol.iterator] is used, it returns a function that, when invoked, returns this iterator itself.

Try it

Syntax

entries()

Return value

A new Map 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 Language Specification # sec-map.prototype.entries

Browser compatibility

	Desktop						Mobile						Server
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	WebView Android	Chrome Android	Firefox for Android	Opera Android	Safari on IOS	Samsung Internet	Deno	Node.js
`entries`	38	12	20	No	25	8	38	38	20	25	8	3.0	1.0	0.12.0