Tie::Toggle - False and true, alternately, ad infinitum.
use Tie::Toggle; tie my $toggle, 'Tie::Toggle'; foreach my $number ( 0 .. 10 ) { next unless $toggle; print $number, "\n"; }
You use Tie::Toggle to go back and forth between false and true over and over again. You don't have to worry about any of this since the magic of tie does that for you by using Tie::Cycle. Any time you access the value, it flips.
Tie::Toggle
Tie::Cycle
You can also use Tie::FlipFlop by Abigail to do the same thing, but with any two values.
Tie::FlipFlop
This source is in GitHub:
https://github.com/briandfoy/tie-toggle
brian d foy, <bdfoy@cpan.org>.
<bdfoy@cpan.org>
Copyright © 2000-2018, brian d foy <bdfoy@cpan.org>. All rights reserved.
This program is free software; you can redistribute it and/or modify it under the terms of the Artistic License 2.0.
To install Tie::Toggle, copy and paste the appropriate command in to your terminal.
cpanm
cpanm Tie::Toggle
CPAN shell
perl -MCPAN -e shell install Tie::Toggle
For more information on module installation, please visit the detailed CPAN module installation guide.