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Interesting Facts about JavaScript Set

Last Updated: 20 April 2026

JavaScript Set is a built-in object that allows you to store unique values of any type. It is especially useful when you need to manage collections without duplicates. A S...read more

JavaScript

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JavaScript-Set

Check if a Set is Empty in JavaScript?

Last Updated: 23 July 2025

These are the following ways to check whether the given set is empty or not:1. Using size property - Mostly usedThe size property is used to get the size of the set. if it...read more

JavaScript

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JavaScript-Set

JavaScript Set Programming Examples

Last Updated: 05 August 2025

In JavaScript, the Set is a built-in collection that allows you to store unique values of any type, Set can store any type of value whether primitive or objects. It provid...read more

JavaScript

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JavaScript-Set

JavaScript Set forEach() Method

Last Updated: 23 July 2025

The set.forEach() method is used to execute the function which is taken as a parameter and applied for each value in the set, in insertion order.Syntax:forEach(function(va...read more

JavaScript Set() Constructor

Last Updated: 23 July 2025

The Javascript Set constructor is used to create Set objects. It will create a set of unique values of any type, whether primitive values or object preferences. It returns...read more

JavaScript Set keys() Method

Last Updated: 23 July 2025

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:k...read more

Internal Working of Set in JavaScript

Last Updated: 23 July 2025

JavaScript Set is a collection of unique values, i.e. values can not be repeated. The values can be primitive or objects. ES6 sets are ordered according to the insertion o...read more

Set vs Array in JavaScript

Last Updated: 05 August 2025

In JavaScript, Set and Array are common data structures used to store collections of data. These data structures are different because of their unique features. Let us loo...read more

Set Vs Map in JavaScript

Last Updated: 16 January 2026

In JavaScript, Set and Map are built-in data structures used to store ordered collections of data, where Set holds unique values and Map stores data as key–value pairs.Set...read more

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Iterate over Set in JavaScript or JS

Last Updated: 23 July 2025

We will iterate over set elements in JavaScript. A set is a collection of unique elements i.e. no element can appear more than once in a set.Below are the approaches to it...read more

How to sort a set in JavaScript ?

Last Updated: 23 July 2025

Sorting a Set based on the values of its elements is a common need in JavaScript. While the built-in sort() function can't be directly applied to a Set, there's a workarou...read more

JavaScript

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JavaScript-Set

JavaScript Set entries() Method

Last Updated: 23 July 2025

The Set.entries() method returns a new Iterator object that contains an array of [value, value] for each element in the Set object, in the order of their insertion. Althou...read more

Difference between Set.clear() and Set.delete() Methods in JavaScript

Last Updated: 23 July 2025

Both Set.clear() and Set.delete() methods modify the present Set by removing elements. But there are some fundamental differences between these two, which will be discusse...read more

Web Technologies - Difference Between

JavaScript Set size Property

Last Updated: 23 July 2025

The Set.size property in JavaScript returns the number of elements in a Set. In other words, we can say that this property is used to get the current size of the set. If t...read more

JavaScript

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JavaScript-Properties

ES6

JavaScript-Set

JavaScript Set clear() Method

Last Updated: 23 July 2025

The Set clear() method in JavaScript is used for the removal of all the elements from a set and making it empty. Syntax:mySet.clear();Parameters:This method does not accep...read more

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