Beefy Boxes and Bandwidth Generously Provided by pair Networks
Perl: the Markov chain saw
 
PerlMonks  

Re^10: Help with JSON Module

by foggy3657 (Novice)
on Sep 08, 2012 at 10:48 UTC ( #992468=note: print w/replies, xml ) Need Help??


in reply to Re^9: Help with JSON Module
in thread Help with JSON Module

Thank you for your patience, but I'm just not understanding what I'm reading.

Replies are listed 'Best First'.
Re^11: Help with JSON Module
by Corion (Pope) on Sep 08, 2012 at 13:46 UTC

    The output of Data::Dumper is source code that would, when run through Perl, recreate the same data structure.

    As a series of exercises to familiarize yourself with walking down such a data structure, maybe the following helps you:

    1. What does print "$result" output, and what does that mean?
    2. Print the value of the TotalPageCount entry of $result .
    3. Assign the content of $result to a hash, %ex1, so that the (comma separated) output of keys %ex1 is (not necessarily in that order) StatusCode, Products, TotalProductCount, PageNumber, TotalPageCount, StatusInfo, PageProductCount . Hint: References Quick Reference
    4. What does print "$result->{Products}" output, and what does that mean? Why did the authors choose Products instead of Product as key name?
    5. Assign the content of $result->{Products} to an array, @ex2. Compare the output of print Dumper @ex2 and print Dumper \@ex2.
    6. Find a query that returns more than one product. Compare the output of your programs when run with that query.
    7. Descending through a data structure can be chained. Explain the following expressions: $result->{Products}->[0] and $result->{Products}->[0]->{ImagePath}

      I'll give them a go. Thank you.

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://992468]
help
Chatterbox?
[erix]: well, I hope you're right
[Your Mother]: Bill Clinton assaulted and raped repeatedly. Even when it was hinted and finally all but proved, no one cared because his sexism, and racism, and killing was decorous.
[Your Mother]: I think Trump might be better specifically because no one respects him so he won't get his way the way the others did.
[Your Mother]: (I certainly did not vote for him and have been an outspoken critic of his for three decades, by the by.)
[erix]: I'd like Russia threatened a bit more, flattered a bit less
[Your Mother]: The last two regimes killed a million, displaced 10 million, torture prisons, and ruined countries… somehow it's magically bad _now_.
[erix]: what/who are the last two regimes?
[Your Mother]: Bush/Obama. 15 straight years of warfare, torture, etc, etc.
[Your Mother]: All caused by the political fallout of Carter/Reagan when the Afghan chickens came home to roost on 9/11.
[Your Mother]: US foreign policy is toxic and like a broken record.

How do I use this? | Other CB clients
Other Users?
Others taking refuge in the Monastery: (5)
As of 2017-01-20 01:07 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?
    Do you watch meteor showers?




    Results (173 votes). Check out past polls.