From: Harry Kakueki <list.push@...>
Date: 2010-04-02T16:39:36+09:00
Subject: scope question

Maybe I'm missing something obvious here, but...
Does this result surprise anyone else or just me?
I was expecting a_hash and an_arr to be local to the method.
Did I just do something stupid?


def scope_q(a_hash,an_arr,a_num)
  a_hash["b"] = 3
  an_arr[1] = 5
  a_num += 1
end

h = {"a"=>1,"b"=>2,"c"=>3,"d"=>4}
a = [1,2,3,4]
n = 7

scope_q(h,a,n)

p h  #> {"a"=>1, "b"=>3, "c"=>3, "d"=>4}
p a  #> [1, 5, 3, 4]
p n  #> 7


#ruby 1.9.1p243


Harry