Beefy Boxes and Bandwidth Generously Provided by pair Networks
go ahead... be a heretic
 
PerlMonks  

Re: variable processing and checking in one statement

by ig (Vicar)
on Aug 07, 2012 at 04:37 UTC ( #985875=note: print w/ replies, xml ) Need Help??


in reply to variable processing and checking in one statement

How about

doSthWith(checkFn($test));

Have checkFn return the passed data if all is well, or undef if not and have doSthWith check its arguments.

Or, incorporate the check into doSthWith - depending on where you want to localize the knowledge about the condition, and how you want to handle the race between the check and what you do with $test

And, I don't advocate this but find the range of possibilities interesting and can't seem to stop myself from updating:

sub { doSthWith($_[0]) if(checkFn($_[0])); }->($test);


Comment on Re: variable processing and checking in one statement
Select or Download Code

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://985875]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others wandering the Monastery: (9)
As of 2015-07-29 23:18 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    The top three priorities of my open tasks are (in descending order of likelihood to be worked on) ...









    Results (269 votes), past polls