Beefy Boxes and Bandwidth Generously Provided by pair Networks
XP is just a number
 
PerlMonks  

comment on

( #3333=superdoc: print w/replies, xml ) Need Help??
To understand that line you must know the effects of using unless (and if I'm asking the questions that will quickly turn into what Perl considers true and false values) as well as execution order in a statement. Put concicely, it says that if $c exists and is true maintain it's value, otherwise set it to 1.
Wrong. It is an anomoly caused by the interaction between lexical scopes created by "my" and postfix conditionals. To put it correctly, if $c is false, then set it to one. If $c is true then set it to undef. If you actually try running that snippet you'll learn what it really does.

In reply to Re^6: Have you netted a Perl Monk or Perl Pretender in 5 minutes or less? by Anonymous Monk
in thread Have you netted a Perl Monk or Perl Pretender in 5 minutes or less? by Anonymous Monk

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!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • 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
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            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 musing on the Monastery: (3)
    As of 2020-02-17 03:12 GMT
    Sections?
    Information?
    Find Nodes?
    Leftovers?
      Voting Booth?
      What numbers are you going to focus on primarily in 2020?










      Results (70 votes). Check out past polls.

      Notices?