Array vs Collection in C#

Question

I know, that in C#a collection can change its length dinamically, but that leads to the question what the benefits of an array over a (dictionary) collection is.
Hope this question isn't that stupid ;D

Answer 1

First of all, I believe you're referring to List<T> in C# instead of Dictionary<TKey, TValue> as the latter is a list of key-value pair.

As you might already know, an array always have a fixed size and the convenience of flexible size of list comes with a trade-off in terms of performance.

Therefore, use an Array if you are certain the size beforehand and List in any other cases.

Hopefully it helps! 😉

Answer 2

Well, arrays are somewhat faster.It's all about performance.

Answer 3

Alright then, thank you guys for the fast answer :)

Answer 4

Exactly :)