go - Concisely deep copy a slice?

Question

In Go, what's a concise/well-performing way to deep copy a slice? I need to copy the slice to a new backing array, because the other array is owned by something else and may be modified after the copy.

I'm currently doing it like this:

copy := append([]T{}, orig...)

where T is the element type of orig.

Answer 1

Waitting for answers