Beefy Boxes and Bandwidth Generously Provided by pair Networks
The stupid question is the question not asked
 
PerlMonks  

comment on

( [id://3333]=superdoc: print w/replies, xml ) Need Help??

Hello sbrothy, and welcome to the Monastery!

To expand on dave_the_m’s answer:

Step 4 of the Basic debugging checklist says: “Dump arrays, hashes and arbitrarily complex data structures.” Using the core Data::Dumper module to print out the contents of @array, we see that after the first push the array contains 4 elements, which Data::Dumper names $VAR1 to $VAR4:

$VAR1 = 'CLIENT_PATH'; $VAR2 = 'PATH: 0'; $VAR3 = 'CLIENT_NICK'; $VAR4 = 'NICK: 0';

That’s because push puts its argument(s) (following the destination array) into list context, and a hash in list context returns a list of the form (key-x, val-x, key-y, val-y, ...). But when a reference to the hash is pushed instead, the result of the first push is:

$VAR1 = { 'CLIENT_PATH' => 'PATH: 0', 'CLIENT_NICK' => 'NICK: 0' };

— which shows that only one element ($VAR1) has been pushed onto the array; and this time its referent retains its identity as a hash.

Some useful reading: perlreftut and perldsc.

Hope that helps,

Athanasius <°(((><contra mundum Iustus alius egestas vitae, eros Piratica,


In reply to Re: Accessing HASH pushed into @array ('strict refs' in use error) by Athanasius
in thread Accessing HASH pushed into @array ('strict refs' in use error) by sbrothy

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post; it's "PerlMonks-approved HTML":



  • Are you posting in the right place? Check out Where do I post X? to know for sure.
  • Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
    <code> <a> <b> <big> <blockquote> <br /> <dd> <dl> <dt> <em> <font> <h1> <h2> <h3> <h4> <h5> <h6> <hr /> <i> <li> <nbsp> <ol> <p> <small> <strike> <strong> <sub> <sup> <table> <td> <th> <tr> <tt> <u> <ul>
  • 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 have long lines (<70 chars), in order to prevent horizontal scrolling (and possible janitor intervention).
  • Want more info? How to link or How to display code and escape characters are good places to start.
Log In?
Username:
Password:

What's my password?
Create A New User
Domain Nodelet?
Chatterbox?
and the web crawler heard nothing...

How do I use this?Last hourOther CB clients
Other Users?
Others learning in the Monastery: (3)
As of 2024-03-29 02:02 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    No recent polls found