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

comment on

( [id://3333]=superdoc: print w/replies, xml ) Need Help??
Along the lines of other commenters, if your goal is to enlighten non-agile developers about the beauty of a flexible language and run-time environment like perl, eval EXPR is not the thing to do it with (IMHO).

eval EXPR is what I use in php or Sybase stored procedures, to make up for the lack of expressiveness in the language.

While eval EPXR has definite uses (such as the quoted example of dynamically loading packages), probably 90% of the times that eval EXPR is used in Perl code, faster and more safe code could be written to do the same thing using techniques such as those shown in other responses (such as closures/currying etc.).

In fact, if these developers are serious C or Java developers and talk about things like compiler optimisations then they are going to recognise most eval EXPR based Perl code as a weak solution to hard problems. It would be sad for that to be their first Perl experience as Perl offers such better solutions to those problems than does, say, C or Java.


In reply to Re: Small examples of string eval by aufflick
in thread Small examples of string eval by spurperl

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 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?Last hourOther CB clients
Other Users?
Others admiring the Monastery: (5)
As of 2024-03-29 12:05 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    No recent polls found