How do you make a deep copy of an object?

Question

It's a bit difficult to implement a deep object copy function. What steps you take to ensure the original object and the cloned one share no reference? JavaScript questions and answers, JavaScript questions pdf, JavaScript question bank, JavaScript questions and answers pdf, mcq on JavaScript pdf, JavaScript questions and solutions, JavaScript mcq Test , Interview JavaScript questions, JavaScript Questions for Interview, JavaScript MCQ (Multiple Choice Questions)

Answer 1

A safe way is to serialize the object, then deserialize. This ensures everything is a brand new reference. Here's an article about how to do this efficiently. Caveats: It's possible for classes to override serialization such that new instances are not created, e.g. for singletons. Also this of course doesn't work if your classes aren't Serializable.