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Articles related to global variables

Global Variables - Ruby - About.com
Global variables are not often used in Ruby, however, you should at least understand their usage should you ever encounter them.
http://ruby.about.com/od/variables/a/Global-Variables.htm
Variables Declared in the Global Scope - Ruby - About.com
I declared a variable in the global scope, and now I can't access it. ... In C and C++, any variables declared at the file level are said to be in the "file scope," and  ...
http://ruby.about.com/od/qa/ss/Variables-Declared-In-The-Global-Scope.htm
Build In Global Variables - Ruby - About.com
Ruby defines a number of built in global variables you may find you need at one point.
http://ruby.about.com/od/beginningruby/ss/Predefined-By-Ruby.htm
Variable Scope - JavaScript - About.com
Determining the scope of variables. ... There is one situation where a global variable becomes temporarily inaccessible and that is if you define a local variable ...
http://javascript.about.com/library/bltut07.htm
Variable Scope (Delphi For Beginners) - About.com
Since Delphi requires us to declare variables, it's a lot harder to fall into the .... Better way to initialize global variables is inside initialization section of the unit.
http://delphi.about.com/od/beginners/l/aa060899.htm
Everything You Need to Know About Variables - Ruby - About.com
There, you really only have global and local variables as well as values obtained via malloc (and pointed to with global or local pointer variables). The Ruby ...
http://ruby.about.com/od/variables/a/Everything-You-Need-To-Know-About-Variables.htm
JavaScript Functions - Returning a Value - About.com
While updating global variables is one way to pass information back to the code that called the function, this is not an ideal way of doing so. A much better ...
http://javascript.about.com/od/3functions/a/fun06.htm
Local Variables and Bindings - Ruby - About.com
Ruby has a no-surprise take on local variables, they're handled similarly in most ... would then go to the global variable binding to resolve that variable access.
http://ruby.about.com/od/variables/a/Local-Variables-And-Bindings.htm
The Scope of Variables - JavaScript - About.com
Variables in JavaScript are all defined with global scope by default. In fact the biggest problem with JavaScript is that it doesn't insist on your defining variables  ...
http://javascript.about.com/od/problemsolving/a/scope.htm
Accessing Ruby Environment Variables - About.com
Environment variables are variables passed to programs by the command line or the graphical shell. Though there are a number of environment variables that ...
http://ruby.about.com/od/rubyfeatures/a/envvar.htm
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