Re: USE IMPORT REQUIRE

On Jan 5, nafiseh saberi said:

>what is the difference between 
>"use" , "import" , "require".

The code:

  use Module qw( this $that );

is the same as:

  # BEGIN { } happens at compile-time
  BEGIN {
    require Module;
    Module->import(qw( this $that ));
  }

Read 'perldoc -q require' for more about how 'use' and 'require' differ.

As for what 'import' is, it's not a builtin function or operator.  It's a
method Perl expects your package to have, and it defines how to import
symbols (such as functions and variables) from the package being used to
the package doing the importing.

You should probably read 'perldoc Exporter' to see how the general
importing mechanism works.

-- 
Jeff "japhy" Pinyan      japhy@pobox.com      http://www.pobox.com/~japhy/
RPI Acacia brother #734   http://www.perlmonks.org/   http://www.cpan.org/
** Look for "Regular Expressions in Perl" published by Manning, in 2002 **
<stu> what does y/// stand for?  <tenderpuss> why, yansliterate of course.

• USE IMPORT REQUIRE by nafiseh saberi
• where to start ? by Chris H.
• Re: where to start ? by Michael R. Wolf
• Re: where to start ? by nafiseh saberi
• Re: USE IMPORT REQUIRE by Chris Ball
• USE IMPORT REQUIRE by nafiseh saberi
• Re: USE IMPORT REQUIRE by Jeff 'japhy' Pinyan