From: Patrick Li <patrickli_2001@...>
Date: 2008-08-15T12:13:18+09:00
Subject: Re: Use of dup to remove references

Mmm, there's only two types of operations in Ruby. Assignment, and 
method calls.

sentence = "variable" is an assignment. The object_id of "variable" is 
put inside a variable named <sentence>

sentence[3] = 't' is a method call. The method's name is "[]=", so 
sentence does whatever the method is defined as:

sentence[3] = 't' does the same thing as:
sentence.[]=('t')

Assignment ALWAYS assigns a new object.
Method calls ALWAYS operates directly on the receiving object.
-- 
Posted via http://www.ruby-forum.com/.