Re: Hash reference as a parameter

Here is an example. You pass the parmeter as a hash reference and access it as a hash reference in the function.


func({1=>'a', 
      2=>'a',
      'a'=>99,
      'f'=>'234',
      'xyzzy'=>'Grue be here.',
      'foo'=>'geww',});


sub func
  {
    my $hashref = shift;

    print "an item from hash: $hashref->{'xyzzy'}\n";
    printf("another item from hash: %s\n", $hashref->{'foo'});
  }
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Comment on Re: Hash reference as a parameter Download Code

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Re^2: Hash reference as a parameter by InfiniteSilence (Curate) on Sep 12, 2005 at 20:49 UTC
I think you missed the @_ added to the end of the hash, which would effectively OVERWRITE the default values with the ones passed in. Celebrate Intellectual Diversity	[reply]
Re^2: Hash reference as a parameter by ramya2005 (Scribe) on Sep 12, 2005 at 20:34 UTC
How to handle the optional parameters in this case?	[reply]
Re^3: Hash reference as a parameter by osunderdog (Deacon) on Sep 12, 2005 at 20:48 UTC
Oh, From your response, it sounds like you are asking about a specific function that is part of a package? XML::Twig perhaps? Adding that to the question will probably get you a better answer... Your question sounded like you were having trouble passing a has and using it within a function. Hazah! I'm Employed!	[reply]
Re^4: Hash reference as a parameter by ramya2005 (Scribe) on Sep 12, 2005 at 20:57 UTC
I do not need a functionality of XML::Twig. I want to combine the functionality of default(Named) parameters with passing hash refs.	[reply]