From: Zhenning Guan <g.zhen.ning@...>
Date: 2009-11-21T15:27:23+09:00
Subject: confuse about initialize hash

def in(options ={} )
  p options
end

in(:say => "somehting") # {:say => "something"}

but under the hood of it, doesn't that process equivalent to
-------
options = {}
options = :say => "something"
-------
or
------
options = :say => "something"
------
??? none of this can compiler.
silly question, hope someone help.
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