Perhaps you need to elaborate on your problem? The key 13 and its value are being removed. However, why need yo do it in the for loop? Wouldn't it be simpler to remove it up front? Consider:

use warnings;
use strict;

my %test = (11 => "reagen", 26 => "daniel", 13 => "joe");

delete $test{13};
print "$_ :: $test{$_}\n" for sort keys %test;

[download]

which prints:

11 :: reagen
26 :: daniel

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If you need to iterate over the hash entries, manipulate them in some fashion that may depend on other values or keys, then do something with the result you really need two loops. Consider:

use warnings;
use strict;

my %test = (11 => "reagen", 26 => "daniel", 13 => "joe");

for (sort keys %test) {
    delete $test{$_ - 13} if exists $test{$_ - 13};
}

print "$_ :: $test{$_}\n" for sort keys %test;

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Prints:

11 :: reagen
26 :: daniel

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DWIM is Perl's answer to Gödel

In reply to Re: delete hash key while hash in use by GrandFather
in thread delete hash key while hash in use by rsiedl

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