I am getting two warnings, yet my code seems to run without error. Both are in line 73. The warnings are:
  • "Odd number of elements in hash assignment"
  • "Use of uninitialized value" 
    sub diff_aref {
    my ($aref1, $aref2) = @_;
    
    my %href = undef; #### this is line 73

    @href{@{$aref2}} = @{$aref2};

    grep { not defined($href{$_}) } @$aref1;
}

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    In reply to Odd number of elements in hash assignment warning. Use of uninitialized value warning by princepawn

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