What are set iterators in JavaScript?

What are set iterators in JavaScript?

Set iterators in JavaScript are methods that allow you to iterate over the elements of a Set object. They include values(), keys(), and entries().

Can you give me an example of how to use a set iterator?

Sure! Here's an example:

const mySet = new Set([1, 2, 3]);
const iterator = mySet.values();

for (let value of iterator) {
    console.log(value);
}

This will log 1, 2, and 3 to the console.

What is the difference between values() and entries()?

The values() method returns an iterator that contains the values of the Set, while entries() returns an iterator of key-value pairs, but in a Set, the key and value are the same.

Are set iterators the same as array iterators?

No, they are not the same. While both allow iteration, array iterators work with arrays and return indices and values, whereas set iterators only return the values of the Set.