What are the performance differences between Map and Object in JavaScript?

What are the performance differences between Map and Object in JavaScript?

In JavaScript, Maps are generally more performant for frequent additions and removals of key-value pairs compared to Objects.

Can you explain why Maps are faster for those operations?

Maps are optimized for dynamic key-value pairs, while Objects are optimized for static properties, leading to better performance in Maps.

Are there any scenarios where I should prefer using an Object over a Map?

Yes, if you need to use string keys and require a simple structure, Objects can be more straightforward and memory-efficient.

What about iteration? How do they compare?

Maps maintain the order of insertion and can be iterated directly, while Objects do not guarantee order and require additional methods.