Beefy Boxes and Bandwidth Generously Provided by pair Networks
Perl-Sensitive Sunglasses
 
PerlMonks  

Re: 2 dimensional array question

by Roger (Parson)
on Sep 05, 2005 at 14:13 UTC ( [id://489230]=note: print w/replies, xml ) Need Help??


in reply to 2 dimensional array question

Note that your assignment is using array slices @arr[0] and @arr[1]. Although it works, you should use $arr[0] and $arr[1] instead because they are not the same thing.

You could use the following method to initialize the 2-d array (use qw // and no commas, I hate to type commas :-)
@arr = ( [ qw/ 1 2 3 / ], [ qw/ 4 5 6 / ] );

Note that [ ... ] builds a reference to an array, it has 0 dimension. While ( ... ) builds an array, which has 1 dimension. When you assign an array to a zero dimension element @arr[0] or $arr[0], it only picks the first element from your array.

And also you could use Data::Dumper to inspect your array afterwards.
use Data::Dumper; @arr = ( [ qw/ 1 2 3 / ], [ qw/ 4 5 6 / ] ); print Dumper(\@arr); # and in your case @arr[0] = qw/ 1 2 3 /; @arr[1] = qw/ 4 5 6 /; print Dumper(\@arr);

Log In?
Username:
Password:

What's my password?
Create A New User
Domain Nodelet?
Node Status?
node history
Node Type: note [id://489230]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this?Last hourOther CB clients
Other Users?
Others drinking their drinks and smoking their pipes about the Monastery: (3)
As of 2024-03-19 07:53 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    No recent polls found