Beefy Boxes and Bandwidth Generously Provided by pair Networks
Just another Perl shrine

Re: What is $x{$y}?

by Riales (Hermit)
on Sep 10, 2012 at 19:02 UTC ( #992826=note: print w/ replies, xml ) Need Help??

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

It looks like you have a array @x of array refs, of which you want the array ref at index $y.

You have a hash %x of array refs, of which you want the array ref with key $y.

The @{ } that surrounds all of it means you're dereferencing the array ref at index $y and getting the array that the array ref points to.

Comment on Re: What is $x{$y}?
Select or Download Code
Replies are listed 'Best First'.
Re^2: What is $x{$y}?
by dave_the_m (Prior) on Sep 10, 2012 at 19:12 UTC
    Or strictly speaking, a hash %x of array refs.


      Oops, you're right. Array is totally wrong. Making the change to the original post!
        How about $x{@y} then? How does that work?

        For instance, in a foreach $x(@y){} line of code.

Log In?

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://992826]
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others perusing the Monastery: (13)
As of 2015-11-30 20:48 GMT
Find Nodes?
    Voting Booth?

    What would be the most significant thing to happen if a rope (or wire) tied the Earth and the Moon together?

    Results (783 votes), past polls