Beefy Boxes and Bandwidth Generously Provided by pair Networks
Think about Loose Coupling
 
PerlMonks  

Re: Learning Programming, desperately need to know what information is contained in scalar variables

by davido (Cardinal)
on Jul 20, 2020 at 15:41 UTC ( #11119547=note: print w/replies, xml ) Need Help??

Help for this page

Select Code to Download


  1. or download this
    use strict;
    use warnings;
    ...
        print '$foo == $foo: $foo is numerically ', ($foo == $foo ? 'equal
    +' : 'unequal'), "\n";
        Dump($foo);
    }
    
  2. or download this
    $foo is undef
    SV = NULL(0x0) at 0x1275f40
    ...
      NV = 0
      PV = 0
    

Log In?
Username:
Password:

What's my password?
Create A New User
Domain Nodelet?
Node Status?
node history
Node Type: note [id://11119547]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others drinking their drinks and smoking their pipes about the Monastery: (3)
As of 2021-10-25 21:08 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?
    My first memorable Perl project was:







    Results (90 votes). Check out past polls.

    Notices?