What are some examples of mutable data types in programming?

What are some examples of mutable data types in programming?

Mutable data types are types that can be changed after they are created. Common examples include lists, dictionaries, and sets.

Can you explain why lists are considered mutable?

Lists are mutable because you can modify them by adding, removing, or changing elements without creating a new list.

What about dictionaries? How are they mutable?

Dictionaries are mutable as well; you can change their key-value pairs, add new pairs, or remove existing ones.

Are there any performance implications of using mutable data types?

Yes, mutable data types can have performance implications, especially in multi-threaded environments where data integrity must be managed.