When you set/get a scalar from an array/hash, its value is copied:
 Not always: 

use strict;
use warnings;
use 5.010;

my @arr = (1, 2, 3);

for (@arr) {
  $_ *= 2;
}

print "@arr\n";

--output:--
2 4 6

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In reply to Re: The behavior of array and hash OPs by 7stud
in thread The behavior of array and hash OPs by llancet

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