undef does not work the way you think it does:
if(undef($text)) { ...
This will always set a variable to undef. You likely want defined as in if( ! defined($text)) { ...:
foreach my $row (@{$data_all})
{
say $row;
my %currec = %{$row};
foreach my $columns (keys %currec) {
my $text = $currec{$columns};
say $text;
if(! defined ($text))
{
say "$columns is NOT DEFINED";
}
elsif (length($text) < 1)
{
say "$columns DEFINED, but empty";
}
}
exit;
}
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Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
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<h5> <h6> <hr /> <i>
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<small> <strike> <strong>
<sub> <sup> <table>
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Snippets of code should be wrapped in
<code> tags not
<pre> tags. In fact, <pre>
tags should generally be avoided. If they must
be used, extreme care should be
taken to ensure that their contents do not
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intervention).
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