From: Robert Klemme <shortcutter@...>
Date: 2005-08-29T23:22:06+09:00
Subject: Re: Calling object method from variable

2005/8/29, Frodo Larik <lists@elasto.nl>:
> Hi all,
> 
> I have two questions regarding object methods
> 
> 1. Is it possible to call a method from a variable?
> Something like this:
> 
> i_am_just_a_var = 'this_is_the_real_method'
> o = Object.new
> o.#{i_am_just_a_var} = 'some thing I want'

o.send("#{i_am_just_a_var}=", 'some thing I want')

> 2. What is the best way to check for a method of an object?
> 
> After playing around in irb I came up with this:
> 
> o = Object.new
> if ( o.methods.grep(/^some_method_name$/ )
>     # do stuff
> else
>     # do something else
> end

o.respond_to? :foo
o.send(:respond_to?, i_am_just_a_var)

Cheers

robert