As a further supplement to trippledubs post, here's a small script you can play around with:
use strict;
use warnings;
my %h = (foo => 'oxen');
my $d = \%h;
print test_it(), "\n";
sub test_it {
return 1 if ( $d->{foo} && $d->{foo} =~ /X/i );
return 0;
}
As trippledubs touched on, if the second condition is met then the fist condition will also inevitably be met. Hence, the script will function perfectly well if the first condition is omitted - except that it would then also print a warning if $h{foo} is not defined.
Cheers, Rob
-
Are you posting in the right place? Check out Where do I post X? to know for sure.
-
Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
<code> <a> <b> <big>
<blockquote> <br /> <dd>
<dl> <dt> <em> <font>
<h1> <h2> <h3> <h4>
<h5> <h6> <hr /> <i>
<li> <nbsp> <ol> <p>
<small> <strike> <strong>
<sub> <sup> <table>
<td> <th> <tr> <tt>
<u> <ul>
-
Snippets of code should be wrapped in
<code> tags not
<pre> tags. In fact, <pre>
tags should generally be avoided. If they must
be used, extreme care should be
taken to ensure that their contents do not
have long lines (<70 chars), in order to prevent
horizontal scrolling (and possible janitor
intervention).
-
Want more info? How to link
or How to display code and escape characters
are good places to start.
|