From: Martin DeMello <martindemello@...>
Date: 2002-12-02T00:43:20+09:00
Subject: Re: [FAQ] [Revised] What do some of Ruby's symbols mean?

Gavin Sinclair <gsinclair@soyabean.com.au> wrote:

Looking good. Some suggestions and typofixes:
 
> <= < != == > >>

That last should be >=

>   Relational operators, as per most other computer languages.  Are often
>   redefined for use with various classes.
> 
> + - * / %
>   Common arithmetic operators.  Some are defined also for String, Array
>   and others.

Might be worth defining % as it's not standart

> ===
>   Case comparison operator.  Used to select branches in case statements.

When you say "case a; when b", a === b is implicitly called

> <<
>   Singleton definition.  See [appropriate link] for more info.
>   Also commonly used as a method for appending (e.g. Array and String).

Singleton *class* definition 

> . ...

..., not .

>   Range definers, as in 0...10 and "a".."z"

> ?!

Write ? ! instead of ?!, since we have two-character operators

This might also be a good place to explain the class#method notation,
#{} in strings, and the ?c to get a character's ascii value, and perhaps
@ and @@ for completeness.

martin