Beefy Boxes and Bandwidth Generously Provided by pair Networks
Clear questions and runnable code
get the best and fastest answer
 
PerlMonks  

Re^2: Counting number of characters in a string

by simul (Novice)
on Jan 23, 2009 at 21:46 UTC ( #738601=note: print w/ replies, xml ) Need Help??

Comment on Re^2: Counting number of characters in a string
Download Code
Re^3: Counting number of characters in a string
by toolic (Bishop) on Jan 23, 2009 at 22:00 UTC
    This does not work for me. I expect the length of the string 'abc' to be 3, but your code returns 0:
    use strict; use warnings; my $str = 'abc'; my $cnt = @{[$str =~ /(\.)/g]}; print "$cnt\n"; __END__ 0

      Remove the backslash, add the "s" modifier. And the parens aren't necessary.

      my $cnt = @{[$str =~ /./sg]};

      Cheaper alternative:

      my $cnt =()= $str =~ /./sg;
      Use the length() function.

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://738601]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others meditating upon the Monastery: (5)
As of 2015-07-07 01:24 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 (86 votes), past polls