How to create an Empty Set in JavaScript - Step by Step Examples

How to create an Empty Set in JavaScript ?

To create an empty set in JavaScript, you can use the Set constructor with no arguments.

In this example,

We use the Set constructor which is a built-in object in JavaScript that allows you to create a set.
We declare a variable named set1 and assign it the result of calling the new Set() constructor with no arguments.
The new Set() constructor creates a new, empty set.
We then print the set1 to the console to verify its contents.

const set1 = new Set();
console.log('Contents of set1:', set1);

Contents of set1: Set(0) {}

In this example,

We use the Set constructor to create an empty set by calling new Set().
We declare a variable named set2 and assign it the result of the new Set() constructor with no arguments.
We add elements to set2 using the add method. For example, we add the strings 'apple' and 'banana'.
We then print the set2 to the console to verify its contents.

const set2 = new Set();
set2.add('apple');
set2.add('banana');
console.log('Contents of set2:', set2);

Contents of set2: Set(2) { 'apple', 'banana' }

In this tutorial, we learned How to create an Empty Set in JavaScript language with well detailed examples.