I think you are treating this as unknown code to try and
figure out, rather than as an unknown concept to master.
Instead of trying random tinkering and syntax from working
code, try a series of exercises. Such as this:
- Read Data::Dumper's documentation.
- Pass Data::Dumper a reference to an array and see what
it gives you.
- Take a reference to an array and try to get a specific
element from that.
- Loop through the elements of an array which you have
a reference to.
- Repeat with hashes.
- Repeat with various combinations of nested arrays and
hashes.
- Then try to see if you understand and could explain
to someone else who understood references the code which
puzzled you.
Please try that.
-
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.
|
