Solved

use Strict

Posted on 2000-02-24
4
278 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

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

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

Suggested Solutions

Many time we need to work with multiple files all together. If its windows system then we can use some GUI based editor to accomplish our task. But what if you are on putty or have only CLI(Command Line Interface) as an option to  edit your files. I…
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…
With Secure Portal Encryption, the recipient is sent a link to their email address directing them to the email laundry delivery page. From there, the recipient will be required to enter a user name and password to enter the page. Once the recipient …

932 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

Need Help in Real-Time?

Connect with top rated Experts

19 Experts available now in Live!

Get 1:1 Help Now