What does it mean: mean in rails before the variable name?

Question

For example, a symbol :- I am trying to determine what it means :and how it differs, for example, from @, as well as from any symbol in general.

If there is a guide that would be really helpful!

Answer 1

This is the symbol that is the construction of the Ruby language.

The characters are like lines, but this blog post explains the details.

@means an instance variable in a class: it is basically a variable that is shared among all methods of an instance of the class. It has nothing to do with :.

Answer 2

: , .

@ - - , , .

variable_name , , .

, - this

Answer 3

@- ivar : ( COSTANT C, - )

Answer 4

http://rubylearning.com/satishtalim/ruby_symbols.html http://www.troubleshooters.com/codecorn/ruby/symbols.htm - 2 ( , Ruby 1.9).

Symbol http://www.ruby-doc.org/core/classes/Symbol.html