How can I optimize collections in C#?

How can I optimize collections in C#?

To optimize collections in C#, consider using the right collection type for your needs, like List, HashSet, or Dictionary.

What are the performance differences between List and LinkedList?

Lists provide faster access by index, while LinkedLists excel in insertions and deletions at any position.

When should I use a HashSet instead of a List?

Use a HashSet when you need unique elements and fast lookups, as it offers O(1) average time complexity for these operations.

Can you give me an example of using a Dictionary?

Sure! A Dictionary is great for key-value pairs. For example, you can store user IDs as keys and user names as values.

What about memory usage? How do I manage that?

To manage memory, be mindful of the collection size and consider using collections that minimize overhead, like Array or Span.