create dynamic variable

[nico Itkin]

Hi !

is it possible in ruby to create dynamic variables like in php by doing
$b=$$a ??

i'd like to infer an instance variable from a layout view, in order to
set up dynamically a precise id to my html object (so i need the name
of the current objetc + its id)

Thanks in advance

nico

 

[Robert Klemme]

is it possible in ruby to create dynamic variables like in php by doing
$b=$$a ??

i'd like to infer an instance variable from a layout view, in order to
set up dynamically a precise id to my html object (so i need the name
of the current objetc + its id)

This is usually an indication that you rather want a Hash.

Having said that here are a few other options you have:

OpenStruct
instance_variable_get/set
eval (not recommended)

Kind regards

robert

 

[krusty.ar]

This is usually an indication that you rather want a Hash.

This was the way I dicovered arrays back when I was 11 years old. I
kept trying to concatenate a number with a fix variable name in some
version of basic.

Lucas.