Global variables usage

[di vi]

I declared two files.One to hold the value of a global variable.And the
other to print it.


1)to hold variables (var.rb)

Code:

$foo = 500


2) to print the global variable (gprint.rb)

Code:
loop do
puts $foo
end



But when I print it ,I get the value "nil" being printed not 500.What
could be the problem?

I did read some tutorials online but dint help.Could some please tell
why I am not able to access the global variable between two .rb files in
the same folder?

Please let me know.

 

[botp]

I declared two files.One to hold the value of a global variable.And the
other to print it.


1)to hold variables (var.rb)

Code:

=A0 =A0$foo =3D 500


2) to print the global variable (gprint.rb)

Code:
=A0 =A0loop do
=A0 =A0puts $foo
=A0 =A0end

where in this code (gprint.rb) does it say that you are accessing the
file var.rb ?
read on require and load...

best regards -botp

 

[di vi]

where in this code (gprint.rb) does it say that you are accessing the
file var.rb ?
read on require and load...

best regards -botp

Load and require execute the complete program..I want only the value of
global variables to change in the respective .rb file.

 

[Robert Klemme]

Load and require execute the complete program..I want only the value of
global variables to change in the respective .rb file.

Well, there's an obvious solution to that: place the global variable
in a file on its own which you load from all places that need it.
However, I am not sure that this is generally a good idea. What do
you need that for?

Kind regards

robert

--=20
remember.guy do |as, often| as.you_can - without end
http://blog.rubybestpractices.com/