What is the difference between a deep copy and a shallow copy?
copy, deep-copy, language-agnostic, shallow-copy
Solution
Shallow copies duplicate as little as possible. A shallow copy of a collection is a copy of the collection structure, not the elements. With a shallow copy, two collections now share the individual elements.
Deep copies duplicate everything. A deep copy of a collection is two collections with all of the elements in the original collection duplicated.
Problem
What is the difference between a deep copy and a shallow copy?