Beefy Boxes and Bandwidth Generously Provided by pair Networks Bob
Your skill will accomplish
what the force of many cannot
 
PerlMonks  

Re: What is $x{$y}?

by Rudolf (Monk)
on Sep 10, 2012 at 19:44 UTC ( #992840=note: print w/ replies, xml ) Need Help??


in reply to What is $x{$y}?

Like it was said above, it is a dereference because a hash only holds scalar values which could be references to an array, hash, or another scalar.. any reference. $x{$y} grabs the reference which is your scalar that you must dereference to make sense out of it.

Just like my $ref = \@ary; creates a reference to the array and the way you would dereference it would be either @$ref or @{$ref}. In the case of a complex variable such as $x{$y} it is probably easier and more readable (once you get used to it) to use surrounding curly braces.


Comment on Re: What is $x{$y}?

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://992840]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others browsing the Monastery: (7)
As of 2014-04-19 18:41 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    April first is:







    Results (483 votes), past polls