JavaScript Set keys() Method (original) (raw)

Last Updated : 12 Jul, 2024

The **set.keys() method is the same as the values() method. This means it returns the new iterator object that contains the value of each set in the insertion order.

**Syntax:

keys()

**Parameter: This method does not take any parameters.

**Return Type: It returns the new iterator object which holds the values in the set.

**Example 1: In this example, we will see the use of keys in the set.

JavaScript `

let placeSet = new Set();

placeSet.add("America"); placeSet.add("England"); placeSet.add("Chicago");

const setIterator = placeSet.keys();

console.log(setIterator);

`

**Output:

[Set Iterator] { 'America', 'England', 'Chicago' }

**Example 2: In this example, we will see the keys() method which returns the set iterator.

JavaScript `

const set1 = new Set();

set1.add('0'); set1.add(1); set1.add(1);

const iterator1 = set1.keys(); console.log(iterator1);

`

Output

[Set Iterator] { '0', 1 }

We have a complete list of Javascript Set methods, to check those please go through this Sets in JavaScript article.

**Supported Browser: