deepClone vs shallowClone for JS Questions

[Aghassi]

It may be of interest to add a question on deep cloning vs shallow cloning for the JS section. It can be extremely important for a programmer to know the difference as it has a huge impact on performance.

[yangshun]

That's an interesting question. As much as possible, we try to keep our questions in sync with the original questions repository. Perhaps you could create an issue and suggest it at https://github.com/h5bp/Front-end-Developer-Interview-Questions first?

[yangshun]

Please reopen this or create another issue if and when the question has been added to the questions repository.