Doesn't Perl have a fancy word for its behavior where you can iterate through an array/list, and modifying the iterator variable modifies the array that you are iterating through? eg.

my @ar = (1, 2, 3);
foreach my $a (@ar)
{
  $a = $a + 1;
}

print join ", ", @ar; # prints 2, 3, 4

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I mentioned to someone how Perl has a big fancy word for this behavior and can't remember (or find through google) what it is. Now I want to know.

This is described in http://modernperlbooks.com/books/modern_perl_2014/03-perl-language.html, but it didn't have a fancy name: "The for loop aliases the iterator variable to the values in the iteration such that any modifications to the value of the iterator modifies the iterated value in place."

Am I imagining that there is a fancy word for this behavior?

Thanks!

In reply to A specific term for a Perlism by JupiterCrash

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