Beefy Boxes and Bandwidth Generously Provided by pair Networks
laziness, impatience, and hubris

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


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?

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

How do I use this? | Other CB clients
Other Users?
Others drinking their drinks and smoking their pipes about the Monastery: (6)
As of 2015-11-27 04:50 GMT
Find Nodes?
    Voting Booth?

    What would be the most significant thing to happen if a rope (or wire) tied the Earth and the Moon together?

    Results (718 votes), past polls