From: Avdi Grimm <avdi@...>
Date: 2009-01-10T12:14:26+09:00
Subject: Re: Ruby introspection????

On Fri, Jan 9, 2009 at 9:49 PM, r <rt8396@gmail.com> wrote:
> 1.) dir(obj) -> <returns list of all names in scope>

obj.instance_methods

> 2.) help(obj) -> <no brainer>

Doesn't exist.  Ruby does not have documentation metadata attached to objects.

> 3.) print obj.__doc__ --> <docstring>

See above.

> 4.) type(obj)

obj.class

> 5.) id(obj)

obj.id


You may notice a trend here - where in Python you sometimes use
method(obj) and sometimes obj.method() to find out about an object, in
Ruby it's *always* obj.method().

>
> any other helpful methods??

http://ruby-doc.org/

-- 
Avdi

Home: http://avdi.org
Developer Blog: http://avdi.org/devblog/
Twitter: http://twitter.com/avdi
Journal: http://avdi.livejournal.com