Re^2: Hash Ref Error


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Re^2: Hash Ref Error

by Maresia (Beadle)

on Sep 15, 2015 at 21:43 UTC ( [id://1142140]=note: print w/replies, xml )

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in reply to Re: Hash Ref Error
in thread Hash Ref Error

I would do this way:

# Create a reference to an anonymous hash with the data

my $my_data = { names => $some_data };
#my $my_data_ref = \%my_data;

my @all_names = split/\n/, ${ $my_data } { names };
 
 foreach my $rows (@all_names){

   print $rows."\n";
   
 }
 ...
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Re^3: Hash Ref Error
by stevieb (Canon) on Sep 15, 2015 at 22:54 UTC

Excellent Maresia! Here's a couple of different ways you can do it. Note that double-quotes automatically 'interpolate' variables (ie. expands variables to their values), so you can even do "$rows\n"; instead of $rows."\n" :)

my %my_data = ( names => $some_data);
my $my_data_ref = \%my_data;

my @all_names = split /\n/, $my_data_ref->{names};

for (@all_names){
    print "$_\n";
}

# or even skip creating the @all_names array altogether

print "$_\n" for split /\n/, $my_data_ref->{names};
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I wouldn't recommend the latter unless you're really just doing something with the extracted information immediately on the spot.

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