When should I use mutable types in C#?

When should I use mutable types in C#?

Mutable types in C# are useful when you need to change the state of an object after it's created. For example, if you have a class that represents a user profile, you might want to update the user's information without creating a new instance.

Can you give me an example of a mutable type?

Sure! A common example of a mutable type in C# is the StringBuilder class. Unlike strings, which are immutable, StringBuilder allows you to modify the string it contains without creating a new object.

What are the downsides of using mutable types?

One downside is that mutable types can lead to unintended side effects, especially in multi-threaded environments. If multiple threads modify the same object, it can cause data inconsistency.

Are there situations where I should avoid mutable types?

Yes, you should avoid mutable types when you need to ensure the integrity of your data, such as in scenarios involving concurrency or when passing objects across different layers of an application.