Beefy Boxes and Bandwidth Generously Provided by pair Networks vroom
Clear questions and runnable code
get the best and fastest answer
 
PerlMonks  

Comment on

( #3333=superdoc: print w/ replies, xml ) Need Help??
It is possible to decleare a variable by 'my' as:

my $x

or

my ($x)

If in the universal perl book "Learning Perl", by Randal L. Schwartz, Tom Phoenix, it is stated that the second exaple decleares the variable in a "list" content. But it is not explained very well why one would like to decleare variables in "list content". I wonder therefore when it is good to decleare variables in the first way and when it is more appropiate to decleare them in the second way. What implications would it have to decleare all vairables, in a larger program in list content;
"my ($x)"
, regardless if it is needed or not. Would it be negative in some way? Thank you for any help

In reply to my $x or my ($x) by tamaguchi

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



  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • Outside of code tags, you may need to use entities for some characters:
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.
  • Log In?
    Username:
    Password:

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

    How do I use this? | Other CB clients
    Other Users?
    Others browsing the Monastery: (16)
    As of 2014-04-24 11:47 GMT
    Sections?
    Information?
    Find Nodes?
    Leftovers?
      Voting Booth?

      April first is:







      Results (565 votes), past polls