W3cubDocs

/JavaScript

Set.prototype.entries()

The entries() method returns a new Iterator object that contains [value, value] for each element in the Set object, in insertion order. For Set objects there is no key like in Map objects. However, to keep the API similar to the Map object, each entry has the same value for its key and value here, so that an array [value, value] is returned.

Try it

Syntax

entries()

Return value

A new iterator object that contains an array of [value, value] for each element in the given Set, in insertion order.

Examples

Using entries()

const mySet = new Set();
mySet.add('foobar');
mySet.add(1);
mySet.add('baz');

const setIter = mySet.entries();

console.log(setIter.next().value); // ["foobar", "foobar"]
console.log(setIter.next().value); // [1, 1]
console.log(setIter.next().value); // ["baz", "baz"]

Specifications

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
24
No
25
8
38
38
24
25
8
3.0
1.0
0.12.0

See also

© 2005–2022 MDN contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Set/entries