Pallavii Potdaar

• Feb 15th, 2006

 

Use :

1. The method is used only for the modules(only to include .pm type file)

2. The included objects are varified at the time of compilation.

3. No Need to give file extension.

Require:

1. The method is used for both libraries and modules.

2. The included objects are varified at the run time.

3. Need to give file Extension.

kiran prasad

 Profile Answers by kiran prasad Questions by kiran prasad

• Oct 11th, 2007

 

"use" is a keyword to incorporate a module (.pm file) at compile time whereas "require" can be used to import a package or a module at run time.

While using "use" keyword, we dont need to specify the file extension.only the file name is required.

suppose we have a module file as myModule.pm

use myModule;

or

require "myModule.pm";

will do the same job.

prabhasgupte

 Profile Answers by prabhasgupte Questions by prabhasgupte

• Feb 11th, 2008

 

There is one more basic difference between 'use' and 'require'.

When you 'use' the control is passed to that file at runtime.
Whereas, when you 'require' the code from that file is included into your code file at run time. (Remember, 'perl' is an interpreter, not compiler).

gireeshkumar.kg

 Profile Answers by gireeshkumar.kg 

• Jun 29th, 2009

 

1)Use

i) use for loading the modules( Should not give the .pm extension)
ii) The loaded module is verified at the compile time.

2) Require

i) Use for loading the modules and perl programs( .pm extension is not necessary; but perl program require .pl extension)

ii) The loaded module is verified at the run time.