What are the benefits of using sets in JavaScript?

What are the benefits of using sets in JavaScript?

Sets in JavaScript provide unique values, which means no duplicates. They also offer efficient operations for adding, deleting, and checking the existence of items.

Can you explain how sets handle duplicates?

Sure! When you try to add a duplicate value to a set, it simply ignores it. This ensures that all values in a set are unique.

What are some common use cases for sets?

Common use cases include storing unique items, removing duplicates from arrays, and performing set operations like union and intersection.

Are there any performance benefits to using sets?

Yes, sets generally offer better performance for operations like checking for existence and removing items compared to arrays, especially as the size grows.

How do I create a set in JavaScript?

You can create a set by using the new Set() constructor. For example, const mySet = new Set([1, 2, 3]); creates a set with three unique numbers.