Beefy Boxes and Bandwidth Generously Provided by pair Networks
Perl: the Markov chain saw
 
PerlMonks  

Re^4: Any improvement over the code possible??

by Rohit Jain (Sexton)
on Sep 21, 2012 at 17:23 UTC ( #994953=note: print w/ replies, xml ) Need Help??


in reply to Re^3: Any improvement over the code possible??
in thread Any improvement over the code possible??

If I write like this: -

say looks_like_number '2'

It should return false as I understand.. but its not printing anything

Neither in the case I give there a number 2


Comment on Re^4: Any improvement over the code possible??
Download Code
Re^5: Any improvement over the code possible??
by Rohit Jain (Sexton) on Sep 21, 2012 at 17:42 UTC

    OK. got it worked by using the below code: -

    use Scalar::Util 'looks_like_number'; my $result = looks_like_number('abc');

    Do we have to import functions like this only? Else I have to do it for every function I import??

      Different modules have different requirements, which are usually in the docs:
      By default Scalar::Util does not export any subroutines.

      So, for this module, you must import explicitly. See also perldoc -f use

        Thanks toolic for a valuable information.. :)

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://994953]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others making s'mores by the fire in the courtyard of the Monastery: (4)
As of 2015-07-05 07:34 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