Beefy Boxes and Bandwidth Generously Provided by pair Networks
Keep It Simple, Stupid
 
PerlMonks  

Re^4: Hash of hashes problem

by naikonta (Curate)
on Oct 11, 2007 at 23:40 UTC ( #644346=note: print w/ replies, xml ) Need Help??


in reply to Re^3: Hash of hashes problem
in thread Hash of hashes problem

Dereferencing a hash? I don't see it in perlref, but it is in perlreftut.
If you're talking about examples of dereferencing hash references, perlref does show a lot of them. To name a few (comments are mine)...,
....you can replace the identifier with a simple scalar variable....
... $$arrayref[0] = "January"; $$hashref{"KEY"} = "VALUE"; # deref the hash, assign a key &$coderef(1,2,3); ...
....you can replace the identifier with a BLOCK returning a reference....
... ${$arrayref}[0] = "January"; ${$hashref}{"KEY"} = "VALUE"; # same as above, differet syntax &{$coderef}(1,2,3); ...
.... As a form of syntactic sugar....
$arrayref->[0] = "January"; $hashref->{"KEY"} = "VALUE"; # still the same, witha arrow operator $coderef->(1,2,3);
So does perlreftut, I suppose. Talking about words, that doc doesn't even have a single word of "dereference" or "dereferencing", though it doesn't matter to me. But I didn't know if perlreftut talked about dereferencing a hash, or any other docs. :-)

Open source softwares? Share and enjoy. Make profit from them if you can. Yet, share and enjoy!


Comment on Re^4: Hash of hashes problem
Select or Download Code
Re^5: Hash of hashes problem
by ikegami (Pope) on Oct 12, 2007 at 02:57 UTC
    Lots of examples of something a little different. None of those example return the referenced structure, which is what the OP wanted.

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://644346]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others wandering the Monastery: (6)
As of 2015-07-03 20:32 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    The top three priorities of my open tasks are (in descending order of likelihood to be worked on) ...









    Results (56 votes), past polls