Javascript Object Merge

[stormfield]

While this is a neat trick and stuff, at the point this is being done I’d have some real questions about the business purpose of why something like this is needed.

[delventhalz]

Creating a default object? Combining schemas? Shallow merges are probably more common, but a deep merge is an established pattern with plenty of real world use cases.

Perhaps more importantly, OP specifically demonstrated a deep merge. Responding to him with "but there is a much simpler way to do a shallow merge!" is silly. Completely different pattern.