Coping with Scoping

Resource Specification

Category:

Perl : Online Articles

Title / Program Name:

Coping with Scoping

URL:

http://perl.plover.com/FAQs/Namespaces.html

Download URL:

N/A

Live Demo URL:

N/A

Screenshots URL:

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Version:

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File Size:

N/A

Released Date:

N/A

Cost:

Free

Platforms Supported:

N/A

Author:

Mark-Jason Dominus

Keywords:

perl variable scope, perl local variables, perl package variables, perl strict vars, perl use vars, perl global variables, perl lexical variables, perl private variables, perl scope

Summary:

Perl namespace management and variable scope

Description:

In the Beginning every part of your program had access to all the variables in every other part of the program. That turned out to be a problem, so language designers invented local variables, which were visible in only a small part of the program. This article discusses the difference between package variables and lexical variables. Topics include: global variables, lexical variables, local declaration, my declaration, my variable, package declaration, package qualifier, package variable, private variable, scope, use strict vars, and use vars.

Ratings Breakdown

Number of Votes:

9

Resource Rating:

7.77

Highest Rating:

10

Lowest Rating:

3

Rating	Vote %	# of Votes
10	11%	1
9	22%	2
8	44%	4
7	11%	1
6	0%	0
5	0%	0
4	0%	0
3	11%	1
2	0%	0
1	0%	0