Beefy Boxes and Bandwidth Generously Provided by pair Networks
good chemistry is complicated,
and a little bit messy -LW
 
PerlMonks  

Comment on

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

A design pattern is a way of using components; that's why design patterns are not components of languages.

You might come up with a "language" consisting of mortar and bricks of various sorts. The design patterns would be the various common ways of arranging bricks to achieve various results. For example, when building a freestanding brick wall, you'll see some bricks sideways, to tie two layers together.

Cliches, aka idioms, are standard bits of code, such as open ... or die $! in Perl, or while( (c=getchar()) == 0 ) in C. Design patterns are both more complex and more abstract than these.

One simple design pattern is the use of an object, the iterator to traverse an array or linked list, rather than coding a loop. You could not make an iterator a part of a language in the sense that while loops or exceptions can be. If you have a library of data structures, as Java & C++ do, you can implement iterators as part of that.

--
TTTATCGGTCGTTATATAGATGTTTGCA


In reply to Re: "Perl Design Patterns" by TomDLux
in thread "Perl Design Patterns" by tjh

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 romping around the Monastery: (9)
    As of 2014-07-30 01:01 GMT
    Sections?
    Information?
    Find Nodes?
    Leftovers?
      Voting Booth?

      My favorite superfluous repetitious redundant duplicative phrase is:









      Results (229 votes), past polls