Beefy Boxes and Bandwidth Generously Provided by pair Networks
XP is just a number
 
PerlMonks  

What's wrong with using grep or map in a void context?

by faq_monk (Initiate)
on Oct 08, 1999 at 00:25 UTC ( #676=perlfaq nodetype: print w/replies, xml ) Need Help??

Current Perl documentation can be found at perldoc.perl.org.

Here is our local, out-dated (pre-5.6) version:

Both grep and map build a return list, regardless of their context. This means you're making Perl go to the trouble of building up a return list that you then just ignore. That's no way to treat a programming language, you insensitive scoundrel!

Log In?
Username:
Password:

What's my password?
Create A New User
Chatterbox?
[GotToBTru]: I appreciate the ability to highlight matching brackets/ parentheses/ braces, both for my own code and the inconsistently indented code of others
[Corion]: I like editors that automatically highlight the matching parenthesis (like % in vi), but that's roughly the extent to which I like editor support ;)
[GotToBTru]: same here Corion.
[Corion]: I tried for a short time (well, 8 hours now) to get Perl::Tidy set up but then found that it doesn't support (new-style) signatures and then stopped again ;))
[GotToBTru]: changing the font color of the rest of the document just because I typed a single quote character is annoying

How do I use this? | Other CB clients
Other Users?
Others exploiting the Monastery: (7)
As of 2017-02-27 12:51 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?
    Before electricity was invented, what was the Electric Eel called?






    Results (385 votes). Check out past polls.