In addition to moritz's excellent point that a function that modifies its arguments then could not be called with a literal, I'd also point out that a lot of Perl programmers probably don't know that @_ is full of aliases. I'd been programming in Perl off and on for over ten years before I came to the Monastery and learned that @_ is aliases. I've asked about this feature in interviews I've conducted, and the prospects out there have always been surprised at this feature. Documentation helps, of course, but someone who doesn't know this is possible could spend an awful lot of time debugging before discovering this (as you say) action at a distance.
Thumbs up on the use less, however.
-
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.
|
