As GrandFather said, $_ gets passed to @incremented before its incremented.

From the docs for map: Note that $_ is an alias to the list value, so it can be used to modify the elements of the LIST. That explains why the original elements in @array change. $_++ modifies the element $_ and $_ * 2 doesn't modify $_.

In reply to Re: map confusion by Cristoforo
in thread map confusion by Anonymous Monk

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