Hello. I'm confused about why map is acting differently with ++ and * : 
use 5.016;
my @array = 0..5;
my @incremented = map { $_++ } @array;
say "@array";         # 1 2 3 4 5 6
say "@incremented";   # 0 1 2 3 4 5

my @array = 0..5;
my @doubled = map {$_ * 2} @array;
say "@array";         # 0 1 2 3 4 5
say "@doubled";       # 0 2 4 6 8 10

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Why is @incremented not incremented but @doubled is doubled? And why is @array affected in the first case by manipulating $_ but not the second? I'm reading perldoc -f map to see a reason but I'm not grokking it so far. I know to use foreach to modify the org array if I had to - just wondering why map is acting like this. Thanks for any insight.

In reply to map confusion by Anonymous Monk

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