Beefy Boxes and Bandwidth Generously Provided by pair Networks
Perl Monk, Perl Meditation
 
PerlMonks  

Re: my $x or my ($x)

by nferraz (Monk)
on Apr 04, 2006 at 18:53 UTC ( #541208=note: print w/ replies, xml ) Need Help??


in reply to my $x or my ($x)

Here's a popular use of the list context:

sub foo { my ( $x, $y, $z ) = @_; # ... }

You can mix scalars with other types:

sub say { my ( $x, %param ) = @_; # ... } &say( "Hello", name => "world" );

The following example won't work as you could expect, because all the arrays will be flatenned into the same one:

sub bar { my ( @a, @b ) = @_; # wrong! # ... } &bar( @array1, @array2 ); # wrong!

The solution is to use references, but we still can use the list context:

sub bar { my ( $a_ref, $b_ref ) = @_; # ok # ... } &bar( \@array1, \@array2 ); # ok


Comment on Re: my $x or my ($x)
Select or Download Code

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://541208]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others surveying the Monastery: (4)
As of 2015-07-04 23:29 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    The top three priorities of my open tasks are (in descending order of likelihood to be worked on) ...









    Results (60 votes), past polls