What are mutable arrays and can you give me some examples?

What are mutable arrays and can you give me some examples?

Mutable arrays are data structures that can be modified after their creation. For example, in Python, a list is a mutable array.

Can you show me how to modify a mutable array in Python?

Sure! You can modify a list in Python using methods like append(), remove(), or by accessing an index directly. For example:

my_list = [1, 2, 3]
my_list.append(4)  # Now my_list is [1, 2, 3, 4]
my_list[0] = 10  # Now my_list is [10, 2, 3, 4]

What are some other programming languages that have mutable arrays?

Other programming languages with mutable arrays include Java (ArrayList), JavaScript (Array), and Ruby (Array). Each has its own methods for modification.

Are there any downsides to using mutable arrays?

Yes, mutable arrays can lead to unintended side effects if not managed properly, especially in concurrent programming.