Beefy Boxes and Bandwidth Generously Provided by pair Networks
Perl: the Markov chain saw
 
PerlMonks  

comment on

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

Who was it that suggested the "Principle of Least Surprise" for component behaviour? I'd say this is a rather gross violation of that rule. Sure, it's great to tell the programmer that they may have called the function improperly, but to die on ill-formed input, especially in a function that's supposed to check for validity, is extreme. (By all means carp about strange input -- bonus points if you provide a flag for debugging output, so that end users don't have to wade through a huge cascade of "hey, programmer, I think you've messed up" messages from a smart-ass module.)

As an aside, I can't stand the name 'check_date' for that function. Okay, it checks the date, but what does it do after checking the date? Die with an error? Return true ("yes, it's valid")? Return false ("yes, it's bogus")? Set a flag somewhere? How about is_valid_date instead?

--
:wq


In reply to Re: Write "Dumber" Functions by FoxtrotUniform
in thread Write "Dumber" Functions by rob_au

Title:
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?
Username:
Password:

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

How do I use this? | Other CB clients
Other Users?
Others about the Monastery: (2)
As of 2022-09-25 11:26 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?
    I prefer my indexes to start at:




    Results (116 votes). Check out past polls.

    Notices?