From: aartist <aartist@...>
Date: 2005-06-01T23:05:23+09:00
Subject: Re: Operation on Classes

Well, all I am saying is that I can group bunch of things together to
understand basics classes.

Example #Array, ItemBlock

array.each      {|item| block }                 ->   array
array.reverse_each {|item| block }
array.delete_if {|item| block }                 ->   array

array.select {|item| block }                    -> an_array
array.collect {|item| block }                   -> an_array
array.reject {|item| block }                    -> an_array
array.map     {|item| block }                   -> an_array

array.map!      {|item| block }                 ->   array
array.collect!  {|item| block }                 ->   array
array.reject! {|item| block }                   -> array or nil


==================================
#Array, IndexBlock
array.each_index {|index| block }               ->  array
array.fill {|index| block }                     -> array

The effort can be used towards mastering ruby. Even you may be able to
read the programs faster.