From: Gary Wright <gwtmp01@...>
Date: 2010-01-20T07:05:09+09:00
Subject: Re: Newbie needs help getting started


On Jan 19, 2010, at 4:18 PM, Siep Korteling wrote:
> You probably want to print n.row , which returns nil in your code 
> because of a previous error: row = r should be @row = r.

It took me a while to absorb Ruby's assignment/setter syntax:

tmp = 1         # local variable assignment
@tmp = 1        # instance variable assignment (bypasses setter)
self.tmp = 1    # method *call* to method named 'tmp=' (i.e. the setter)
                # same as self.tmp=(1)

self[index] = 1 # method *call* to method named '[]=' for current object
                # same as self.[]=(index, 1)

tmp[index] = 1  # method *call* to method named '[]=' for tmp
                # same as tmp.[]=(index, 1)

Gary Wright