Re^3: process array with while loop


good chemistry is complicated, and a little bit messy -LW
	PerlMonks

Re^3: process array with while loop

by shawnhcorey (Friar)

on Nov 10, 2006 at 15:39 UTC ( [id://583348]=note: print w/replies, xml )

Need Help??

in reply to Re^2: process array with while loop
in thread process array with while loop

Except that print is not a void context. Therefore the map will create a list.

#!/usr/bin/perl

use strict;
use warnings;

my $a = ( print "Hello world\n" );
print "The answer is $a\n";

__END__
[download]

See `perldoc -f print` for details.

Comment on Re^3: process array with while loop Select or Download Code

Replies are listed 'Best First'.

Re^4: process array with while loop
by davorg (Chancellor) on Nov 14, 2006 at 14:04 UTC

Except that print is not a void context.

I think you might be misunderstanding. blahblah wasn't talking about the call to print. He was talking about the call to map ("map in a void context"). And the call to map is in a void context - its return value doesn't go anywhere. But as he also pointed out, that's no longer a problem. Or, at least, it's not a problem from a technical point of view. I'd still argue that it's not the clearest way to write the code.

--
<http://dave.org.uk>

"The first rule of Perl club is you do not talk about Perl club."
-- Chip Salzenberg

[reply]

In Section Seekers of Perl Wisdom