From: Robert Klemme <bob.news@...>
Date: 2004-05-19T23:38:49+09:00
Subject: Re: Arguments and formal variables


"Angel Martin" <angel@tyrex.mine.nu> schrieb im Newsbeitrag
news:1084970490.26805.37.camel@tyrex.mine.nu...
> In first place I sorprised with te behavior of formal variables inside a
> metod or proc:

Why are you surprised?  Formal method / proc parameters and bound to some
ruby instances on method invocation.  Whenever you assign to them from
inside the method / proc, only this variable binding changes.  These
variables are not aliases for any other variables.  If they would be, you
could not do this, because initialization is done from an expression
evaluation and not a variable:

def bar(x)
  puts x
  x = 100
  puts x
end

bar( 5 + 10 )

Regards

    robert