Well, technically, doesn't 0..$#array create an (anonymous) array, which reverse then reverses? :)
Technically no. The 0..$#array
just creates a list from
zero to the last index, reverse 0..$#array
is the list
of indices reversed. So we are not reversing the array, just creating
a slice with with reversed indices and assigning that slice to the a
slice with all the indices in order. I imagine a built-in array
reversal would be more like Ruby's array.reverse!
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