Re: easiest way to print the content of a hash?

Or, assuming your hash values are scalars, you can step through the keys and print out the contents, like this:

  foreach (sort keys %myhash) {
    print "$_ : $myhash{$_}\n";
  }
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Comment on Re: easiest way to print the content of a hash? Download Code

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Re^2: easiest way to print the content of a hash? by McDarren (Abbot) on Jul 13, 2006 at 15:48 UTC
I can never quite get why nobody (apart from me) ever seems to recommend Data::Dumper::Simple for debugging? It's way easier to use than Data::Dumper, especially for more complex data structures. There is no need to pass references, and the output contains the actual variable names - instead of "VAR1", "VAR2", etc. I know you can get the same thing with Data::Dumper using Dumper->Dump, but this can very quickly become quite unwieldy. About the only objection I could imagine to using Data::Dumper::Simple is that is uses source filters, but if you're only using it for debugging - and not in production code - what's the problem? Just curious.... Darren :)	[reply]
Re^3: easiest way to print the content of a hash? by japhy (Canon) on Jul 13, 2006 at 18:22 UTC
Perhaps because it's a source filter? (Yes, I read your post. And yes, that's my reason.) Jeff `japhy` Pinyan, P.L., P.M., P.O.D, X.S.: Perl, regex, and `perl` hacker How can we ever be the sold short or the cheated, we who for every service have long ago been overpaid? ~~ Meister Eckhart	[reply]
Re^3: easiest way to print the content of a hash? by tinita (Parson) on Jul 13, 2006 at 20:39 UTC
There is no need to pass references, and the output contains the actual variable names - instead of "VAR1", "VAR2", etc. it's time again to quote my .vimrc: `:imap dumper <ESC>^iwarn Data::Dumper->Dump([\<ESC>llyw$a], ['<ESC>pa']);<ESC>` let's you type '@myarraydumper' and you'll get `warn Data::Dumper->Dump([\@myarray], ['myarray']);` Data::Dumper is in the core, and with the help of my editor i don't have to type much to get a decent debugging output.	[reply] [d/l] [select]
Re^2: easiest way to print the content of a hash? by saberworks (Curate) on Jul 13, 2006 at 15:59 UTC
`use Data::Dumper; my %hash = ( key1 => 'value1', key2 => 'value2' ); print Dumper(%hash); # okay, but not great print "or\n"; print Dumper(\%hash); # much better` [download] And the output: `$VAR1 = 'key2'; $VAR2 = 'value2'; $VAR3 = 'key1'; $VAR4 = 'value1'; or $VAR1 = { 'key2' => 'value2', 'key1' => 'value1' };` [download]	[reply] [d/l] [select]