Beefy Boxes and Bandwidth Generously Provided by pair Networks
Your skill will accomplish
what the force of many cannot

comment on

( #3333=superdoc: print w/replies, xml ) Need Help??

In terms of aesthetics, my feeling is "each to his own". I used to use map in void context. I have no problem reading code like that. I no longer use it, but for completely different reasons (see below).

The performance hit was resolved in 5.8.1 (see "perl581delta: Miscellaneous Enhancements"). If you're coding to 5.8.0 or earlier, you should avoid map in void context; otherwise, the performance issue is moot.

Quite a few years ago, I benchmarked map against for. I was surprised at how much faster for was. That's the reason I would now choose

for (keys %{ $weapons_ref }) { ... }


map { ... } keys %{ $weapons_ref };

See Benchmark and run your own tests if you want.

— Ken

In reply to Re^4: using ref to hash of hash effectively by kcott
in thread using ref to hash of hash effectively by kalee

Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post; it's "PerlMonks-approved HTML":

  • 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 or How to display code and escape characters are good places to start.
Log In?

What's my password?
Create A New User
Domain Nodelet?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others musing on the Monastery: (3)
As of 2021-09-27 04:50 GMT
Find Nodes?
    Voting Booth?

    No recent polls found