On Friday, September 16, 2016 at 11:11:17 AM UTC-6, oyi...@gmail.com wrote:
>
> I have not been able to find an explanation. Does anyone care to explain
> or point to relevant documentation?
>
One data point: I'd expect slice + slice to create a new object, that is, a
new backing array. I'd also expect += to concatenate using the same backing
array for the result object. That's the way Python does it, and I've got a
bit of Python background.
That said, though, I'd wonder what would happen for a slice of some complex
object. To take an extreme example, what would adding slices of maps or
channels do?
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