How to Get Length of a Set in JavaScript

How to Get Length of a Set in JavaScript ?

To get the size of a set in JavaScript, you can use the size property of the set.

In this example,

We create a set named set1 using the Set constructor with some elements.
We use the size property of the set object set1 to get the number of elements in the set.
The size property returns the size of the set.
Finally, we print the size of the set to the console.

const set1 = new Set(['apple', 'banana', 'cherry']);
console.log('Size of set1:', set1.size);

Size of set1: 3

In this example,

We create an empty set named emptySet using the Set constructor.
We use the size property of the set object emptySet to get the number of elements in the set.
Since the set is empty, the size property returns 0.
Finally, we print the size of the empty set to the console.

const emptySet = new Set();
console.log('Size of emptySet:', emptySet.size);

Size of emptySet: 0

In this tutorial, we learned How to Get Length of a Set in JavaScript language with well detailed examples.