Beefy Boxes and Bandwidth Generously Provided by pair Networks
Pathologically Eclectic Rubbish Lister
 
PerlMonks  

Re^2: Forcing array context on a file handle

by perl_walker (Novice)
on Oct 31, 2012 at 07:15 UTC ( #1001614=note: print w/ replies, xml ) Need Help??


in reply to Re: Forcing array context on a file handle
in thread Forcing array context on a file handle

Hi, ronmrdechai

$lines = grep {$_} <$file>;


Comment on Re^2: Forcing array context on a file handle
Download Code
Re^3: Forcing array context on a file handle
by QM (Vicar) on Nov 02, 2012 at 12:31 UTC
    That works for files in the default case, because every line will have a newline or somesuch, and will not be an empty string. For counting, map would be more appropriate than grep. But tobyink showed the idiom above:
    my $lines =()= <$file>;

    -QM
    --
    Quantum Mechanics: The dreams stuff is made of

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://1001614]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others about the Monastery: (8)
As of 2015-07-05 04:54 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 (60 votes), past polls