What are the best practices for using Maps in JavaScript?

What are the best practices for using Maps in JavaScript?

Using Maps in JavaScript is great for key-value pairs. Best practices include using objects as keys, avoiding mutation, and leveraging methods like .set(), .get(), and .has() for efficiency.

Can you explain why using objects as keys is beneficial?

Using objects as keys allows for more complex data structures and ensures that the keys are unique references, which can be very useful in certain applications.

What are some common mistakes to avoid when using Maps?

Common mistakes include using non-primitive values as keys without understanding their reference behavior, and not utilizing the built-in methods effectively.

How do Maps compare to regular objects in JavaScript?

Maps offer better performance for frequent additions and removals of key-value pairs, while regular objects are simpler for static key-value pairs.