What decides the order of keys when I print a Perl hash?

Question

activePerl 5.8 based

#!C:\\Perl\\bin\\perl.exe
use strict;
use warnings;

# declare a new hash
my %some_hash;

%some_hash = (\"foo\", 35, \"bar\", 12.4, 2.5,         


        

Answer 1

The elements are (almost certainly) printed out in the order they appear (internally) in the hash table itself -- i.e. based on the hash values of their keys.

The general rule to follow is to use something other than a hash table if you care much about the order.