What are the advantages of using hash maps in programming?

What are the advantages of using hash maps in programming?

Hash maps offer fast data retrieval, efficient memory usage, and allow for easy implementation of associative arrays.

Can you explain how they achieve fast data retrieval?

They use a hash function to compute an index into an array of buckets or slots, allowing for average-case constant time complexity.

Are there any downsides to using hash maps?

Yes, hash maps can have issues with collisions, and their performance can degrade if not sized properly.

In what scenarios should I avoid using hash maps?

Avoid hash maps when you need ordered data or when memory usage is a critical concern.