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Re^2: Any improvement over the code possible??

by Rohit Jain (Sexton)
on Sep 21, 2012 at 17:08 UTC ( #994950=note: print w/ replies, xml ) Need Help??


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

Thanks for reply :)

I tried out this code.. but its not giving what I expected. Is it how it works??

#!/perl/bin use v5.14; use Scalar::Util; say &Scalar::Util::looks_like_number('2');

I haven't studied till packages and modules.. So, don't know exactly how to use them..


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Re^3: Any improvement over the code possible??
by toolic (Bishop) on Sep 21, 2012 at 17:18 UTC
    its not giving what I expected
    You need to tell us what you expect it to do. Or read the doc I linked to:
    looks_like_number EXPR Returns true if perl thinks EXPR is a number.

    Super Search is another way to find answers and see code examples.

      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

        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??

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