Its important for us to know difference between mutable and immutable types and how they are treated when passed onto functions. Memory efficiency is highly affected when the proper objects are used.

Mutable class with a convert-to-immutable-version method The previous pattern is suitable for read-only data whose usage is short-lived (e.g., scoped to a method).

Here's what happens when you pass mutable and immutable object references in Java. Many programming languages allow passing objects by reference or by value.

What is the difference between mutable and immutable data? What is the difference between a list and a string? How is a tuple different from a list? What is an operator?