From: ngoc <ngoc@...>
Date: 2006-08-10T04:15:10+09:00
Subject: Re: does ":" have an anolog in another language?

> Symbols can best be described as identities. A symbol is all about who
> it is, not what it is. Fire up irb and see the difference:
> 
Many persons use advanced language to explain Symbols to make it more 
difficult.
For me, it is a text string like any other text string. But you can not 
  manipulate it like split, sub!, etc.... There are only 4 methods 
(id2name  inspect  to_i  to_s) for it.

Use it for hash key instead of normal string. (we do not need all 
manipulating functions for hash key)

Is it simple enough?