From: Alex Fenton <alex@...>
Date: 2009-02-09T01:30:22+09:00
Subject: Re: how to combine a list of functions with a list of arguments

Boris Schmid wrote:
> Apologies, I have been out of using ruby for a while, and ran into
> trouble when I tried to do the below. What is the normal way to call
> apply a list of arguments to a list of functions?
> 
> def f1(n)
>   puts "f1: #{n}"
> end
> 
> def f2(n)
>   puts "f2: #{n}"
> end

[:f1, :f2].each do | fun |
   [1, 2, 3, 4].each { | x | Object.send(fun, x) }
end

Ruby doesn't have functions, just methods. What look like functions 
above (a def outside a class body) creates methods in the Object class.

"send" is the generic way to call any object's method using a name. It 
accepts a string or symbol (hence :f1 above) followed by the arguments.

a