When should I use objects instead of maps in JavaScript?

When should I use objects instead of maps in JavaScript?

You should use objects when you need a simple key-value store and want to leverage prototype inheritance. Maps are better for dynamic key-value pairs and when you need to maintain the order of entries.

Can you explain the performance differences between objects and maps?

Sure! Maps generally have better performance for frequent additions and removals of key-value pairs, while objects are faster for static key-value pairs.

What about the key types? Can I use anything as a key in maps?

Yes, in maps, you can use any value as a key, including objects, while in objects, keys are always strings or symbols.

Are there any specific use cases where one is preferred over the other?

Yes, use objects for simple data structures and maps for more complex scenarios like caching or maintaining order.