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

Re: m//g behaves strange...

by converter (Priest)
on Nov 09, 2003 at 21:54 UTC ( #305723=note: print w/replies, xml ) Need Help??


in reply to m//g behaves strange...

In scalar context m//g doesn't return size of the list it would give back when called in list context,

If you want the number of elements in the list returned by a pattern with the /g modifier when evaluated in list context, you can use a list assignment in scalar context, which produces the number of its elements. In this case, we assign to an empty list:

$_ = "456"; $count = () = /./g; print $count; # prints 3

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://305723]
help
Chatterbox?
and all is quiet...

How do I use this? | Other CB clients
Other Users?
Others contemplating the Monastery: (3)
As of 2017-12-17 01:14 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?
    What programming language do you hate the most?




















    Results (459 votes). Check out past polls.

    Notices?