How do Maps and Sets in ES6 compare in terms of performance?

How do Maps and Sets in ES6 compare in terms of performance?

Maps and Sets in ES6 have different performance characteristics. Maps are optimized for key-value pairs, while Sets are optimized for unique values.

Can you explain when to use a Map over a Set?

Use a Map when you need to associate keys with values, and a Set when you only need to store unique values without duplicates.

What are the time complexities for adding and retrieving items in Maps and Sets?

Both Maps and Sets have average time complexities of O(1) for adding and retrieving items, making them efficient for these operations.

Are there any scenarios where one is significantly faster than the other?

In general, both perform similarly, but if you're frequently checking for existence, Sets might be slightly faster due to their unique value optimization.