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Re^2: My 'perldar' tells me there is a 'better' solution for this list operation

by Hofmator (Curate)
on Nov 06, 2006 at 08:49 UTC ( #582399=note: print w/ replies, xml ) Need Help??


in reply to Re: My 'perldar' tells me there is a 'better' solution for this list operation
in thread My 'perldar' tells me there is a 'better' solution for this list operation

it seems a couple of the responses used qw(Field1 Field2 Field3) as opposed to ("Field1","Field2","Field3"). What's the difference?

Short answer, there is no difference :).

Long answer, see perlop.

qw/STRING/
      Evaluates to a list of the words extracted out of
      STRING, using embedded whitespace as the word 
      delimiters.  It can be understood as being roughly
      equivalent to:

          split(' ', q/STRING/);

      the difference being that it generates a real list
      at compile time.  So this expression:

          qw(foo bar baz) 

      is semantically equivalent to the list:

          'foo', 'bar', 'baz'

      Some frequently seen examples:

          use POSIX qw( setlocale localeconv )
          @EXPORT = qw( foo bar baz );

-- Hofmator

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