Beefy Boxes and Bandwidth Generously Provided by pair Networks
Do you know where your variables are?
 
PerlMonks  

Re: Simple one

by Taulmarill (Deacon)
on Aug 20, 2009 at 12:47 UTC ( #790082=note: print w/replies, xml ) Need Help??


in reply to Simple one

One difference is about context. The first line sets @_ in scalar context, which makes Arrays give back the number of their elements.

The second line sets the Array in list context, because $root now is in a list. The fact that the list has only one element does not concern @_. In list context, Arrays return all their elements. Since the list has only one element, only the first element of the array is stored.

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://790082]
help
Chatterbox?
and all is quiet...

How do I use this? | Other CB clients
Other Users?
Others musing on the Monastery: (3)
As of 2016-12-04 12:54 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?
    On a regular basis, I'm most likely to spy upon:













    Results (65 votes). Check out past polls.