Perl module: Difference between revisions

Revision as of 20:58, 19 March 2007

Revision as of 21:05, 19 March 2007

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''hello_world.pl''

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#!/usr/bin/perl -w

# Loads the module and imports any functions into our namespace

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package Hello::World;

# By default Perl allows you to use variables without declaring

# them. While this may be convenient for short scripts and

# one-liners, in a longer module it is wise to declare your variables

# both to catch typos and to keep them from being accessible outside

# the module.

use strict;

# Similarly, Perl does not issue warnings by default. A module, being

# more complicated then a script, usually will find them very helpful

# for debugging.

use warnings;

# A module's version number is stored in $ModuleName::VERSION; certain

# forms of the "use" built-in depend on this variable being defined.

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''hello_world.pl''

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#!/usr/bin/perl -w

use Hello::World;

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package Hello::World;

use strict;

use warnings;

our $VERSION = "1.00";