Solved

use Strict

Posted on 2000-02-24
4
279 Views
Last Modified: 2010-03-05
Hi,

  What exactly does "use strict" do?

0
Comment
Question by:leoleo
  • 3
4 Comments
 
LVL 5

Accepted Solution

by:
PC_User321 earned 20 total points
ID: 2556970
The most important thing that it does is force you to declare all variables before using them.
This makes writing bug-free code easier because without it you could accidentally use two different spelling of a variable, and perl would use them as two different variables.

You declare variables with the word 'my'. e.g.
   my $First;
   my $Second = "Number two";
0
 
LVL 5

Expert Comment

by:PC_User321
ID: 2556992
Type "perdoc strict" at the unix prompt to find out all the details.
0
 
LVL 5

Expert Comment

by:PC_User321
ID: 2556996
Sorry, "perldoc strict".

On a PC you can read
C:\Apps\Perl\html\lib\strict.html
(adjust the path to match your setup).
0
 

Author Comment

by:leoleo
ID: 2557060

Thanks a lot.
0

Featured Post

Independent Software Vendors: We Want Your Opinion

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

A year or so back I was asked to have a play with MongoDB; within half an hour I had downloaded (http://www.mongodb.org/downloads),  installed and started the daemon, and had a console window open. After an hour or two of playing at the command …
In the distant past (last year) I hacked together a little toy that would allow a couple of Manager types to query, preview, and extract data from a number of MongoDB instances, to their tool of choice: Excel (http://dilbert.com/strips/comic/2007-08…
Explain concepts important to validation of email addresses with regular expressions. Applies to most languages/tools that uses regular expressions. Consider email address RFCs: Look at HTML5 form input element (with type=email) regex pattern: T…

726 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question